Patent Publication Number: US-2023163445-A1

Title: Electronic device including metal antenna

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
     This application is a continuation of International Application No. PCT/KR2022/018761 designating the United States, filed on Nov. 24, 2022, in the Korean Intellectual Property Receiving Office and claiming priority to Korean Patent Application No. 10-2021-0163694, filed on Nov. 24, 2021, in the Korean Intellectual Property Office, the disclosures of all of which are incorporated by reference herein in their entireties. 
    
    
     BACKGROUND 
     1. Field 
     The disclosure relates to an electronic device including a metal antenna. 
     2. Description of Related Art 
     Along with the rapid development of electronic devices having new functions over the recent years, the electronic devices such as portable terminals become more important in people&#39;s lives. To maximize the portability and user convenience of portable terminals such as smartphones, which have become common due to the development of mobile communication technology, the demands for miniaturization and reduced weights are increasing, and components are integrated in a small space, for high performance. 
     Further, to provide a service of stable quality under a commercialized wireless communication network environment, an antenna device included in an electronic device should satisfy a high gain and wide beam coverage. In addition to legacy mobile communication (e.g., 2nd generation (2G)/3rd generation (3G)/4th generation (4G)/universal mobile telecommunication system (UMTS)/long term evolution (LTE)) in low/middle/high frequency bands at or below several GHz, which supports multiple bands, Bluetooth, wireless fidelity (Wi-Fi), near field communication (NFC), global positioning system (GPS), and ultra-wideband (UWB), millimeter wave communication in a frequency band of several tens of GHz or higher (e.g., a high-band frequency at or above 28 GHz) has recently been used to accommodate the rapid increase of traffic and meet demands for increased traffic. 
     In order to apply the above-described various mobile communication technologies to an electronic device, various antenna modules and/or antenna radiators may be disposed in the electronic device. At least part of an electronic device housing may be formed of a conductive material (e.g., a metal), and this part (hereinafter, referred to as a “metal frame”) may be used as an antenna radiator (hereinafter, referred to as a “metal antenna”). To achieve antenna performance of the electronic device using the metal frame as an antenna, various factors such as interference between antennas disposed in the electronic device, and integration and appropriate distribution between supported bands may need to be considered. 
     The electronic device may include at least one coupling member which is disposed in the inner space of a housing to feed power to or ground the metal frame, and configured to connect the metal frame and a printed circuit board (PCB) on which at least one component (e.g., a communication module) is disposed. As an example of the coupling member, a C-clip may be applied, which may be disposed between one surface of the PCB and the metal frame, with a specified pressed amount, and may electrically connect the component of the PCB and the metal frame to each other. In addition, when the C-clip is used to connect the metal frame to the PCB, a flange that protrudes and extends from the metal frame toward the inner space of the housing may be provided. 
     However, when the flange overlaps with an electronic component such as a display of the electronic device, the performance of the antenna using the metal frame may be degraded. For example, the flange extending from the metal frame may overlap with an edge of the display adjacent to the bezel of the electronic device in a height direction of the electronic device. In view of the recent trend toward reduction of the bezel of an electronic device to increase the display area of the electronic device, the flange and the edge of the display may overlap over a wider area, thereby causing the degradation of the antenna performance. 
     SUMMARY 
     Provided are an electronic device, system, and method that may prevent the degradation of antenna performance, when feeding or grounding is performed for a metal frame by a coupling member. 
     Additional aspects will be set forth in part in the description which follows and, in part, will be apparent from the description, or may be learned by practice of the presented embodiments. 
     According to an aspect of the disclosure, an electronic device may include a housing including a front surface facing a first direction, a rear surface facing a second direction opposite to the first direction, and a side surface surrounding an inner space between the front surface and the rear surface, wherein at least part of the side surface includes a conductive portion, a display provided on the front surface of the housing, a printed circuit board (PCB) provided in the inner space, and a coupling member provided on the PCB and coupled to the conductive portion of the side surface, wherein the coupling member contacts the conductive portion of the side surface in the second direction. 
     According to an aspect of the disclosure, an electronic device may include a housing including a front surface facing a first direction, a rear surface facing a second direction opposite to the first direction, and a side surface surrounding an inner space between the front surface and the rear surface, where at least part of the side surface includes a conductive portion, a display provided on the front surface, a first PCB provided in the inner space, a second PCB provided inside the housing and spaced apart from the first PCB by a predetermined distance in the second direction, and a coupling member provided on one surface of the second PCB, and coupled to the conductive portion of the side surface, where the conductive portion of the side surface includes a first inner side surface exposed in a third direction different from the first direction and the second direction in the inner space and a second inner side surface exposed in the second direction, and the coupling member contacts the second inner side surface of the conductive portion of the side surface. 
     According to an aspect of the disclosure, an electronic device may include a housing including a front surface facing a first direction, a rear surface facing a second direction opposite to the first direction, an inner space between the front surface and the rear surface, and a side surface comprising a conductive portion, a first PCB provided in the inner space, a second PCB spaced apart from the first PCB in the second direction, and a coupling member coupled to the conductive portion of the side surface. The conductive portion of the side surface may include a first inner side surface exposed in the inner space in a third direction different from the first direction and the second direction and a second inner side surface exposed in the second direction, and the coupling member may contact the second inner side surface of the conductive portion of the side surface. 
     According to various embodiments of the disclosure, a metal frame may not be provided with a flange protruding into the inner space of a housing, for power feeding or grounding. The resulting minimization of overlap between the flange and an electronic component in a height direction (second direction) of an electronic device may prevent or reduce the degradation of antenna performance. 
     According to various embodiments of the disclosure, since the metal frame and a coupling member are assembled in the height direction (second direction) of the electronic device, the assembly may be easy, and the shortcomings of the related art side contact method for the metal frame (e.g., the coupling member is assembled by sliding to prevent damage to an electronic component in the side contact method) may be overcome. 
     According to various embodiments of the disclosure, a stable contact structure may be achieved by supporting one side of the coupling member (e.g., the opposite side of a contact point contacting the metal frame) by a support member. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The above and other aspects, features, and advantages of certain embodiments of the present disclosure will be more apparent from the following description taken in conjunction with the accompanying drawings, in which: 
         FIG.  1    is a block diagram illustrating an electronic device in a network environment according to various embodiments; 
         FIG.  2 A  is a diagram illustrating an electronic device according to various embodiments of the disclosure; 
         FIG.  2 B  is a diagram illustrating an electronic device according to various embodiments of the disclosure; 
         FIG.  3    is a diagram illustrating an inner side surface of an electronic device according to a first comparative example; 
         FIG.  4    is a diagram illustrating a cross-section of a side surface of an electronic device according to the first comparative example; 
         FIG.  5    is a diagram illustrating a cross-section of a side surface of an electronic device according to the first comparative example; 
         FIG.  6    is a diagram illustrating an inner side surface of an electronic device according to a second comparative example; 
         FIG.  7    is a diagram illustrating a cross-section of a side surface of an electronic device according to a second comparative example; 
         FIG.  8    is a diagram illustrating a cross-section of a side surface of an electronic device according to the second comparative example; 
         FIG.  9    is a diagram illustrating an inner side surface of an electronic device according to various embodiments of the disclosure; 
         FIG.  10    is a diagram illustrating a cross-section of a side surface of an electronic device according to various embodiments of the disclosure; 
         FIG.  11    is a diagram illustrating a cross-section of a side surface of an electronic device according to various embodiments of the disclosure; 
         FIG.  12    is a cross-sectional view illustrating a coupling member according to various embodiments of the disclosure; 
         FIG.  13    is a diagram illustrating a coupling member according to various embodiments of the disclosure; 
         FIG.  14    is a diagram illustrating a coupling member according to various embodiments of the disclosure; 
         FIG.  15    is a cross-sectional view illustrating a coupling member contacting a conductive portion on a side surface according to various embodiments of the disclosure; 
         FIG.  16    is a diagram illustrating a cross-section of part of an electronic device according to various embodiments of the disclosure; 
         FIG.  17    is a diagram illustrating a cross-section of part of an electronic device according to various embodiments of the disclosure; 
         FIG.  18    is a diagram illustrating a coupling member according to various embodiments of the disclosure; and 
         FIG.  19    is a cross-sectional view illustrating a coupling member contacting a conductive portion on a side surface according to various embodiments of the disclosure. 
     
    
    
     DETAILED DESCRIPTION 
       FIG.  1    is a block diagram illustrating an electronic device  101  in a network environment  100  according to various embodiments. 
     Referring to  FIG.  1   , the electronic device  101  in the network environment  100  may communicate with an electronic device  102  via a first network  198  (e.g., a short-range wireless communication network), or at least one of an electronic device  104  or a server  108  via a second network  199  (e.g., a long-range wireless communication network). According to an embodiment, the electronic device  101  may communicate with the electronic device  104  via the server  108 . According to an embodiment, the electronic device  101  may include a processor  120 , memory  130 , an input module  150 , a sound output module  155 , a display module  160 , an audio module  170 , a sensor module  176 , an interface  177 , a connecting terminal  178 , a haptic module  179 , a camera module  180 , a power management module  188 , a battery  189 , a communication module  190 , a subscriber identification module (SIM)  196 , or an antenna module  197 . In an embodiment, at least one of the components (e.g., the connecting terminal  178 ) may be omitted from the electronic device  101 , or one or more other components may be added in the electronic device  101 . In an embodiment, some of the components (e.g., the sensor module  176 , the camera module  180 , or the antenna module  197 ) may be implemented as a single component (e.g., the display module  160 ). 
     The processor  120  may execute, for example, software (e.g., a program  140 ) to control at least one other component (e.g., a hardware or software component) of the electronic device  101  coupled with the processor  120 , and may perform various data processing or computation. According to one embodiment, as at least part of the data processing or computation, the processor  120  may store a command or data received from another component (e.g., the sensor module  176  or the communication module  190 ) in volatile memory  132 , process the command or the data stored in the volatile memory  132 , and store resulting data in non-volatile memory  134 . According to an embodiment, the processor  120  may include a main processor  121  (e.g., a central processing unit (CPU) or an application processor (AP)), or an auxiliary processor  123  (e.g., a graphics processing unit (GPU), a neural processing unit (NPU), an image signal processor (ISP), a sensor hub processor, or a communication processor (CP)) that is operable independently from, or in conjunction with, the main processor  121 . For example, when the electronic device  101  includes the main processor  121  and the auxiliary processor  123 , the auxiliary processor  123  may be adapted to consume less power than the main processor  121 , or to be specific to a specified function. The auxiliary processor  123  may be implemented as separate from, or as part of the main processor  121 . 
     The auxiliary processor  123  may control at least some of functions or states related to at least one component (e.g., the display module  160 , the sensor module  176 , or the communication module  190 ) among the components of the electronic device  101 , instead of the main processor  121  while the main processor  121  is in an inactive (e.g., sleep) state, or together with the main processor  121  while the main processor  121  is in an active state (e.g., executing an application). According to an embodiment, the auxiliary processor  123  (e.g., an image signal processor or a communication processor) may be implemented as part of another component (e.g., the camera module  180  or the communication module  190 ) functionally related to the auxiliary processor  123 . According to an embodiment, the auxiliary processor  123  (e.g., the neural processing unit) may include a hardware structure specified for artificial intelligence model processing. An artificial intelligence model may be generated by machine learning. Such learning may be performed, e.g., by the electronic device  101  where the artificial intelligence is performed or via a separate server (e.g., the server  108 ). Learning algorithms may include, but are not limited to, e.g., supervised learning, unsupervised learning, semi-supervised learning, or reinforcement learning. The artificial intelligence model may include a plurality of artificial neural network layers. The artificial neural network may be a deep neural network (DNN), a convolutional neural network (CNN), a recurrent neural network (RNN), a restricted boltzmann machine (RBM), a deep belief network (DBN), a bidirectional recurrent deep neural network (BRDNN), deep Q-network or a combination of two or more thereof but is not limited thereto. The artificial intelligence model may, additionally or alternatively, include a software structure other than the hardware structure. 
     The memory  130  may store various data used by at least one component (e.g., the processor  120  or the sensor module  176 ) of the electronic device  101 . The various data may include, for example, software (e.g., the program  140 ) and input data or output data for a command related thererto. The memory  130  may include the volatile memory  132  or the non-volatile memory  134 . 
     The program  140  may be stored in the memory  130  as software, and may include, for example, an operating system (OS)  142 , middleware  144 , or an application  146 . 
     The input module  150  may receive a command or data to be used by another component (e.g., the processor  120 ) of the electronic device  101 , from the outside (e.g., a user) of the electronic device  101 . The input module  150  may include, for example, a microphone, a mouse, a keyboard, a key (e.g., a button), or a digital pen (e.g., a stylus pen). 
     The sound output module  155  may output sound signals to the outside of the electronic device  101 . The sound output module  155  may include, for example, a speaker or a receiver. The speaker may be used for general purposes, such as playing multimedia or playing record. The receiver may be used for receiving incoming calls. According to an embodiment, the receiver may be implemented as separate from, or as part of the speaker. 
     The display module  160  may visually provide information to the outside (e.g., a user) of the electronic device  101 . The display module  160  may include, for example, a display, a hologram device, or a projector and control circuitry to control a corresponding one of the display, hologram device, and projector. According to an embodiment, the display module  160  may include a touch sensor adapted to detect a touch, or a pressure sensor adapted to measure the intensity of force incurred by the touch. 
     The audio module  170  may convert a sound into an electrical signal and vice versa. According to an embodiment, the audio module  170  may obtain the sound via the input module  150 , or output the sound via the sound output module  155  or a headphone of an external electronic device (e.g., an electronic device  102 ) directly (e.g., wiredly) or wirelessly coupled with the electronic device  101 . 
     The sensor module  176  may detect an operational state (e.g., power or temperature) of the electronic device  101  or an environmental state (e.g., a state of a user) external to the electronic device  101 , and then generate an electrical signal or data value corresponding to the detected state. According to an embodiment, the sensor module  176  may include, for example, a gesture sensor, a gyro sensor, an atmospheric pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a proximity sensor, a color sensor, an infrared (IR) sensor, a biometric sensor, a temperature sensor, a humidity sensor, or an illuminance sensor. 
     The interface  177  may support one or more specified protocols to be used for the electronic device  101  to be coupled with the external electronic device (e.g., the electronic device  102 ) directly (e.g., wiredly) or wirelessly. According to an embodiment, the interface  177  may include, for example, a high definition multimedia interface (HDMI), a universal serial bus (USB) interface, a secure digital (SD) card interface, or an audio interface. 
     A connecting terminal  178  may include a connector via which the electronic device  101  may be physically connected with the external electronic device (e.g., the electronic device  102 ). According to an embodiment, the connecting terminal  178  may include, for example, a HDMI connector, a USB connector, a SD card connector, or an audio connector (e.g., a headphone connector). 
     The haptic module  179  may convert an electrical signal into a mechanical stimulus (e.g., a vibration or a movement) or electrical stimulus which may be recognized by a user via his tactile sensation or kinesthetic sensation. According to an embodiment, the haptic module  179  may include, for example, a motor, a piezoelectric element, or an electric stimulator. 
     The camera module  180  may capture a still image or moving images. According to an embodiment, the camera module  180  may include one or more lenses, image sensors, image signal processors, or flashes. 
     The power management module  188  may manage power supplied to the electronic device  101 . According to one embodiment, the power management module  188  may be implemented as at least part of, for example, a power management integrated circuit (PMIC). 
     The battery  189  may supply power to at least one component of the electronic device  101 . According to an embodiment, the battery  189  may include, for example, a primary cell which is not rechargeable, a secondary cell which is rechargeable, or a fuel cell. 
     The communication module  190  may support establishing a direct (e.g., wired) communication channel or a wireless communication channel between the electronic device  101  and the external electronic device (e.g., the electronic device  102 , the electronic device  104 , or the server  108 ) and performing communication via the established communication channel. The communication module  190  may include one or more communication processors that are operable independently from the processor  120  (e.g., the AP) and supports a direct (e.g., wired) communication or a wireless communication. According to an embodiment, the communication module  190  may include a wireless communication module  192  (e.g., a cellular communication module, a short-range wireless communication module, or a global navigation satellite system (GNSS) communication module) or a wired communication module  194  (e.g., a local area network (LAN) communication module or a power line communication (PLC) module). A corresponding one of these communication modules may communicate with the external electronic device via the first network  198  (e.g., a short-range communication network, such as Bluetooth™, wireless-fidelity (Wi-Fi) direct, or infrared data association (IrDA)) or the second network  199  (e.g., a long-range communication network, such as a legacy cellular network, a 5G network, a next-generation communication network, the Internet, or a computer network (e.g., LAN or wide area network (WAN)). These various types of communication modules may be implemented as a single component (e.g., a single chip), or may be implemented as multi components (e.g., multi chips) separate from each other. The wireless communication module  192  may identify and authenticate the electronic device  101  in a communication network, such as the first network  198  or the second network  199 , using subscriber information (e.g., international mobile subscriber identity (IMSI)) stored in the subscriber identification module  196 . 
     The wireless communication module  192  may support a 5G network, after a 4G network, and next-generation communication technology, e.g., new radio (NR) access technology. The NR access technology may support enhanced mobile broadband (eMBB), massive machine type communications (mMTC), or ultra-reliable and low-latency communications (URLLC). The wireless communication module  192  may support a high-frequency band (e.g., the mmWave band) to achieve, e.g., a high data transmission rate. The wireless communication module  192  may support various technologies for securing performance on a high-frequency band, such as, e.g., beamforming, massive multiple-input and multiple-output (massive MIMO), full dimensional MIMO (FD-MIMO), array antenna, analog beam-forming, or large scale antenna. The wireless communication module  192  may support various requirements specified in the electronic device  101 , an external electronic device (e.g., the electronic device  104 ), or a network system (e.g., the second network  199 ). According to an embodiment, the wireless communication module  192  may support a peak data rate (e.g., 20 Gbps or more) for implementing eMBB, loss coverage (e.g., 164 dB or less) for implementing mMTC, or U-plane latency (e.g., 0.5 ms or less for each of downlink (DL) and uplink (UL), or a round trip of 1 ms or less) for implementing URLLC. 
     The antenna module  197  may transmit or receive a signal or power to or from the outside (e.g., the external electronic device) of the electronic device  101 . According to an embodiment, the antenna module  197  may include an antenna including a radiating element composed of a conductive material or a conductive pattern formed in or on a substrate (e.g., a printed circuit board (PCB)). According to an embodiment, the antenna module  197  may include a plurality of antennas (e.g., array antennas). In such a case, at least one antenna appropriate for a communication scheme used in the communication network, such as the first network  198  or the second network  199 , may be selected, for example, by the communication module  190  (e.g., the wireless communication module  192 ) from the plurality of antennas. The signal or the power may then be transmitted or received between the communication module  190  and the external electronic device via the selected at least one antenna. According to an embodiment, another component (e.g., a radio frequency integrated circuit (RFIC)) other than the radiating element may be additionally formed as part of the antenna module  197 . 
     According to various embodiments, the antenna module  197  may form a mmWave antenna module. According to an embodiment, the mmWave antenna module may include a PCB, a RFIC disposed on a first surface (e.g., the bottom surface) of the PCB, or adjacent to the first surface and capable of supporting a designated high-frequency band (e.g., the mmWave band), and a plurality of antennas (e.g., array antennas) disposed on a second surface (e.g., the top or a side surface) of the PCB, or adjacent to the second surface and capable of transmitting or receiving signals of the designated high-frequency band. 
     At least some of the above-described components may be coupled mutually and communicate signals (e.g., commands or data) therebetween via an inter-peripheral communication scheme (e.g., a bus, general purpose input and output (GPIO), serial peripheral interface (SPI), or mobile industry processor interface (MIPI)). 
     According to an embodiment, commands or data may be transmitted or received between the electronic device  101  and the external electronic device  104  via the server  108  coupled with the second network  199 . Each of the electronic devices  102  or  104  may be a device of a same type as, or a different type, from the electronic device  101 . According to an embodiment, all or some of operations to be executed at the electronic device  101  may be executed at one or more of the external electronic devices  102 ,  104 , or  108 . For example, if the electronic device  101  should perform a function or a service automatically, or in response to a request from a user or another device, the electronic device  101 , instead of, or in addition to, executing the function or the service, may request the one or more external electronic devices to perform at least part of the function or the service. The one or more external electronic devices receiving the request may perform the at least part of the function or the service requested, or an additional function or an additional service related to the request, and transfer an outcome of the performing to the electronic device  101 . The electronic device  101  may provide the outcome, with or without further processing of the outcome, as at least part of a reply to the request. To that end, a cloud computing, distributed computing, mobile edge computing (MEC), or client-server computing technology may be used, for example. The electronic device  101  may provide ultra low-latency services using, e.g., distributed computing or mobile edge computing. In another embodiment, the external electronic device  104  may include an internet-of-things (IoT) device. The server  108  may be an intelligent server using machine learning and/or a neural network. According to an embodiment, the external electronic device  104  or the server  108  may be included in the second network  199 . The electronic device  101  may be applied to intelligent services (e.g., smart home, smart city, smart car, or healthcare) based on 5G communication technology or IoT-related technology. 
       FIG.  2 A  is a diagram illustrating an electronic device according to various embodiments of the disclosure.  FIG.  2 B  is a diagram illustrating the electronic device according to various embodiments of the disclosure. 
     In  FIGS.  2 A and  2 B  and the following drawings, a spatial coordinate system including an X axis, a Y axis perpendicular to the X axis, and a Z axis perpendicular to the X axis and the Y axis may be illustrated. According to various embodiments, the X axis of the spatial coordinate system may correspond to a width direction of the electronic device  101 , the Y axis of the spatial coordinate system may correspond to a length direction of the electronic device  101 , and the Z axis of the spatial coordinate system may correspond to a height direction of the electronic device  101 . In the description of various embodiments, Z axis of the spatial coordinate system may correspond to the “height direction (or second direction)” mentioned below. 
     Referring to  FIGS.  2 A and  2 B , the electronic device  101  according to an embodiment may include a housing  210  which includes a front surface  210 A, a rear surface  210 B, and side surfaces  210 C surrounding a space between the front surface  210 A and the rear surface  210 B. In another embodiment, the housing  210  may refer to a structure that forms part of the front surface  210 A of  FIG.  2 A , the rear surface  210 B of  FIG.  2 B , and the side surfaces  210 C. According to an embodiment, at least part of the front surface  210 A may be formed by a front plate  202  (e.g., a glass plate or polymer plate including various coating layers) which is at least partially substantially transparent. The rear surface  210 B may be formed by a rear plate  211 . The rear plate  211  may be formed of, for example, glass, ceramic, a polymer, a metal (e.g., aluminum, stainless steel (STS), or magnesium), or a combination of at least two of these materials. The side surfaces  210 C may be coupled with the front plate  202  and the rear plate  211  and formed by a side bezel structure (or “side member”)  218  including a metal and/or a polymer. In an embodiment, the rear plate  211  and the side bezel structure  218  may be integrally formed and include the same material (e.g., glass, a metal material such as aluminum, or ceramic). 
     In the illustrated embodiment, the front plate  202  may include two first edge regions  210 D bent and extending seamlessly from the front surface  210 A toward the rear plate  211 , at both ends of long edges of the front plate  202 . In the illustrated embodiment (refer to  FIG.  2 B ), the rear plate  211  may include two second edge regions  210 E bent and extending seamlessly from the rear surface  210 B toward the front plate  202  at both ends of long edges of the rear plate  211 . In an embodiment, the front plate  202  (or the rear plate  211 ) may include only one of the first edge regions  210 D (or the second edge regions  210 E). In another embodiment, some of the first edge regions  210 D or the second edge regions  210 E may not be included. In the above embodiments, when viewed from a side of the electronic device  101 , the side bezel structure  218  may have a first thickness (or width) on side surfaces without the first edge regions  210 D or the second edge regions  210 E, and a second thickness smaller than the first thickness on side surfaces with the first edge regions  210 D or the second edge regions  210 E. 
     According to an embodiment, the electronic device  101  may include at least one of a display  201 , audio modules  203 ,  207 , and  214  (e.g., the audio module  170  of  FIG.  1   ), a sensor module (e.g., the sensor module  176  of  FIG.  1   ), camera modules  205  and  212  (e.g., the camera module  180  of  FIG.  1   ), key input devices  217  (e.g., the input module  150  of  FIG.  1   ), or connector holes  208  and  209  (e.g., the connecting terminal  178  of  FIG.  1   ). In an embodiment, the electronic device  101  may not be provided with at least one (e.g., the connector hole  209 ) of the components or additionally include other components. 
     According to an embodiment, the display  201  may be visually exposed, for example, through a substantial portion of the front plate  202 . In an embodiment, at least part of the display  201  may be exposed through the front plate  202  forming the front surface  210 A and the first edge regions  210 D. In an embodiment, the corners of the display  201  may be formed in the same shapes as those of adjacent peripheral portions of the front plate  202  on the whole. In another embodiment, the gap between the periphery of the display  201  and the periphery of the front plate  202  may be equal on the whole to increase the exposed area of the display  201 . 
     According to an embodiment, a surface (or the front plate  202 ) of the housing  210  may include a view area formed by visual exposure of the display  201 . For example, the view area may include the front surface  210 A and the first edge regions  210 D. 
     In another embodiment, a recess or an opening may be formed in part of the view area (e.g., the front surface  210 A and the first edge regions  210 D) of the display  201 , and include at least one of the audio module  214 , a sensor module, a light emitting element, or the camera module  205 , which is aligned with the recess or the opening. In another embodiment, at least one of the audio module  214 , a sensor module, the camera module  205 , a fingerprint sensor, or a light emitting element may be included on the rear surface of the view area of the display  201 . 
     In another embodiment, the display  201  may be incorporated with or disposed adjacent to a touch sensing circuit, a pressure sensor that measures the intensity (pressure) of a touch, and/or a digitizer that detects a magnetic field-based stylus pen. 
     In an embodiment, at least some of the key input devices  217  may be disposed in the first edge regions  210 D and/or the second edge regions  210 E. 
     According to an embodiment, the audio modules  203 ,  207 , and  214  may include a microphone hole  203  and speaker holes  207  and  214 . A microphone for obtaining an external sound may be disposed in the microphone hole  203 , and in an embodiment, a plurality of microphones may be disposed to detect the direction of a sound. The speaker holes  207  and  214  may include an external speaker hole  207  and a receiver hole  214  for calls. In an embodiment, the speaker holes  207  and  214  and the microphone hole  203  may be implemented as a single hole, or a speaker (e.g., a piezo speaker) may be included without the speaker holes  207  and  214 . The audio modules  203 ,  207 , and  214  may be designed in various manners such as installation of only some audio modules or addition of a new audio module according to the structure of the electronic device  101 , not limited to the above structure. 
     According to an embodiment, a sensor module may generate, for example, an electrical signal or data value corresponding to an internal operation state or external environmental state of the electronic device  101 . The sensor module may include, for example, a first sensor module (e.g., a proximity sensor) and/or a second sensor module (e.g., a fingerprint sensor), which is disposed on the front surface  210 A of the housing  210 , and/or a third sensor module (e.g., a heart rate monitor (HRM) sensor) and/or a fourth sensor module (e.g., a fingerprint sensor), which is disposed on the rear surface  210 B of the housing  210 . In an embodiment, the fingerprint sensor may be disposed on the rear surface  210 B as well as on the front surface  210 A (e.g., the display  201 ) of the housing  210 . The electronic device  101  may further include a sensor module, for example, at least one of a gesture sensor, a gyro sensor, a barometric pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a color sensor, an IR sensor, a biometric sensor, a temperature sensor, a humidity sensor, or an illuminance sensor. The sensor module may be designed in various manners such as installation of only some sensor modules or addition of a new sensor module according to the structure of the electronic device  101 , not limited to the above structure. 
     According to an embodiment, the camera modules  205  and  212  may include, for example, a front camera module  205  disposed on the front surface  210 A of the electronic device  101 , and a rear camera module  212  and/or a flash  213  disposed on the rear surface  210 B of the electronic device  101 . Each of the camera modules  205  and  212  may include one or more lenses, an image sensor, and/or an image signal processor. The flash  213  may include, for example, a light emitting diode (LED) or a xenon lamp. In an embodiment, two or more lenses (an IR camera, a wide-angle lens, and a telephoto lens) and image sensors may be arranged on one surface of the electronic device  101 . The camera modules  205  and  212  may be designed in various manners such as installation of only some camera modules or addition of a new camera module according to the structure of the electronic device  101 , not limited to the above structure. 
     According to an embodiment, the electronic device  101  may include a plurality of camera modules (e.g., a dual camera or a triple camera) each having a different attribute (e.g., angle of view) or function. For example, a plurality of camera modules  205  and  212  including lenses having different angles of view may be configured, and the electronic device  101  may control changing of the angles of view of the camera modules  205  and  212  implemented in the electronic device  101  based on a user selection. For example, at least one of the plurality of camera modules  205  and  212  may be a wide-angle camera, and at least one other camera module may be a telephoto camera. Similarly, at least one of the plurality of camera modules  205  and  212  may be a front camera, and at least one other camera module may be a rear camera. Further, the plurality of camera modules  205  and  212  may include at least one of a wide-angle camera, a telephoto camera, or an IR camera (e.g., a time of flight (TOF) camera or a structured light camera). According to an embodiment, the IR camera may be operated as at least part of the sensor module. For example, the TOF camera may be operated as at least part of a sensor module for detecting a distance to a subject. 
     According to an embodiment, the key input devices  217  may be arranged on side surfaces  210 C of the housing  210 . In another embodiment, the electronic device  101  may not include some or any of the above key input devices  217 , and the key input devices  217  which are not included may be implemented in other forms such as soft keys on the display  201 . In an embodiment, the key input devices may include a sensor module disposed on the rear surface  210 B of the housing  210 . 
     According to an embodiment, a light emitting element may be disposed, for example, on the front surface  210 A of the housing  210 . The light emitting element may provide, for example, state information about the electronic device  101  in the form of light. In another embodiment, the light emitting element may provide a light source interworking, for example, with an operation of the front camera module  205 . The light emitting element may include, for example, an LED, an IR LED, and/or a xenon lamp. 
     According to an embodiment, the connector holes  208  and  209  may include a first connector hole  208  that may accommodate a connector (e.g., a universal serial bus (USB) connector) for transmitting and receiving power and/or data to and from an external electronic device, and/or a second connector hole  209  (e.g., an earphone jack) that may accommodate a connector for transmitting and receiving an audio signal to and from an external electronic device. The connector holes  208  and  209  may be designed in various manners such as installation of only some connector hole or addition of a new connector hole according to the structure of the electronic device  101 , not limited to the above structure. 
     According to an embodiment, the camera module  205  and/or a sensor module may be disposed in the internal space of the electronic device  101  to communicate with the external environment through a specified area of the display  201  and the front plate  202 . For example, the specified area may be an area in which pixels are not disposed on the display  201 . In another embodiment, the specified area may be an area in which pixels are disposed on the display  201 . When viewed from above the display  201 , at least a part of the specified area may overlap with the camera module  205  and/or the sensor module. In another example, some sensor module may be disposed in the internal space of the electronic device to perform its function without being visually exposed through the front plate  202 . 
     The electronic device  101  illustrated in  FIGS.  2 A and  2 B  has a bar-type or plate-type outward appearance, which should not be construed as limiting the disclosure. For example, the illustrated electronic device may be part of a rollable electronic device or foldable electronic device. A “rollable electronic device” may refer to an electronic device in which a display is bendable to be deformed and thus partially wound or rolled or accommodated in a housing (e.g., the housing  210  of  FIG.  2 A ). According to a user need, the rollable electronic device may increase a view area by unfolding the display or exposing a larger area of the display to the outside. A “foldable electronic device” may refer to an electronic device in which a display is foldable such that two different areas of the display face each other or in opposite directions. In general, the display may be folded with two different areas facing each other or in opposite directions in a portable state, whereas the user may unfold the display with the two different areas of the display being substantially flat in an actual use state, in the foldable electronic device. In an embodiment, the electronic device  101  according to various embodiments of the disclosure may be interpreted as including not only a portable electronic device such as a smartphone, but also various other electronic devices such as a laptop computer or a home appliance. 
     According to various embodiments of the disclosure, various embodiments for preventing the degradation of antenna performance during feeding or grounding of a metal frame through a coupling member are provided. For example, in the case of a structure in which a flange is formed on a metal frame and coupled to a PCB to use the metal frame as an antenna, the disclosure is intended to solve the problem of degraded antenna performance caused by overlap between the flange and an electronic component. The structures of a metal frame and a coupling member according to related art (referred to as a first comparative example) will be described with reference to  FIGS.  3 ,  4  and  5   . 
       FIG.  3    is a diagram illustrating an inner side surface of the electronic device  300  according to the first comparative example.  FIG.  4    is a diagram illustrating a cross-section of a side surface of the electronic device  300  according to the first comparative example.  FIG.  5    is a diagram illustrating the cross-section of the side surface of the electronic device  300  according to the first comparative example. The cross-section illustrated in  FIG.  4    may be a cross-section of the electronic device  300  illustrated in  FIG.  3   , taken along an A-A′ direction. 
     Referring to  FIGS.  3 ,  4  and  5   , the electronic device  300  according to the first comparative example may include a display  301  (e.g., the display  201  of  FIGS.  2 A and  2 B ), a front plate  302  (e.g., the front plate  202  of  FIGS.  2 A and  2 B ), a side bezel structure  318  (e.g., the side bezel structure  218  of  FIGS.  2 A and  2 B ) (hereinafter, referred to as a “side surface”  318 ) surrounding an inner space of a housing, PCBs  320  and  330 , and a coupling member  340 . The electronic device  300  may not be provided with at least one of the components or may additionally include other components. For example, the electronic device  300  may further include a rear plate (e.g., the rear plate  211  of  FIG.  2 B ) and/or a support member  350  (e.g., a bracket) (e.g., the rear plate  211  of  FIG.  2 B ), which is disposed in the inner space of the housing and coupled to the side bezel structure  318  or which is formed integrally with the side bezel structure  318 . 
     The PCBs  320  and  330  may have various electronic components, for example, a processor (e.g., the processor  120  of  FIG.  1   ), memory (e.g., the memory  130  of  FIG.  1   ), and/or an interface (e.g., the interface  177  of  FIG.  1   ) mounted thereon. Further, a communication module (e.g., the communication module  190  of  FIG.  1   ) and/or an antenna module (e.g., the antenna module  197  of  FIG.  1   ) may be mounted on the PCBs  320  and  330 . The PCBs  320  and  330  may include a first PCB  320  disposed in a portion of the inner space of the housing, and a second PCB  330  disposed at a different position from the first PCB  320 . The first PCB  320  may be a flexible PCB (FPCB) disposed on the rear surface of the display  301 , and the second PCB  330  may be made of a rigid material. The second PCB  330  may be a sub-PCB, which may be spaced apart from a main PCB (e.g., the first PCB  320  or a third PCB) in the electronic device  300 . While two PCBs are shown as the PCBs  320  and  330  in  FIGS.  4  and  5   , the disclosure is not limited thereto, and one PCB or three or more PCBs may be provided. In addition, the above-described PCB(s) (the first PCB  320  and the second PCB  330 ) in the disclosure are not limited to any specific embodiment in terms of arrangement and use. 
     The communication module (e.g., the communication module  190  of  FIG.  1   ) and/or the antenna module (e.g., the antenna module  197  of  FIG.  1   ) may be disposed on the PCBs  320  and  330 . When the communication module and/or the antenna module are disposed on the PCBs  320  and  330 , a direct (e.g., wired) communication channel or a radio communication channel may be established, communication through the established communication channel may be supported, and signals may be exchanged between the electronic device  300  and an external electronic device (e.g., the electronic devices  102  and  104  or the server  108  of  FIG.  1   ) by using the communication module and/or the antenna module. 
     Part of the housing, for example, at least part of the side bezel structure  318  may be formed of a conductive portion  318   a  (e.g., a metal). Use of the conductive portion  318   a  of the side bezel structure  318  as an antenna radiator may enable various types of communications such as 2nd generation (2G)/3rd generation (3G)/4th generation (4G) communication, Bluetooth, wireless fidelity (Wi-Fi), and/or ultra-wideband (UWB) as well as short-range communication such as near field communication (NFC), magnetic secure transmission (MST), and wireless charging. 
     To use the conductive portion  318   a  of the side bezel structure  318  as an antenna, the side bezel structure  318  requires feeding and/or grounding, and the coupling member  340  may be used for the feeding and/or grounding. For example, the coupling member  340  may be disposed on the second PCB  330 , and electronic components disposed on the second PCB may be electrically coupled to the side bezel structure  318  through the coupling member  340 . 
     In the first comparative example illustrated in  FIGS.  3 ,  4  and  5   , when the coupling member  340  is coupled to the side bezel structure  318 , a flange  319  may be formed to protrude and extend from the side bezel structure  318  into the inner space of the housing, as a component to increase contact stability in the electronic device  300 . For example, the side bezel structure  318  according to first comparative example may include the conductive portion  318   a  (e.g., a metal frame) and a non-conductive portion  318   b  (e.g., an injection-molded portion) at least partially surrounding the conductive portion  318   a . The side bezel structure  318  may further include the flange  319  protruding and extending from the conductive portion  318   a  into the inner space of the housing. The flange  319  may be provided for stable contact between the coupling member  340  and the conductive portion  318   a . As the flange  319  protrudes and extends into the inner space of the housing, the flange  319  may overlap with an electronic component of the electronic device. The second PCB  330  may include a first surface  330   a  facing a first direction (e.g., a direction opposite to the Z axis) and a second surface  330   b  facing a second direction (e.g., a direction parallel to the Z axis). A portion overlapping with the coupling member  340  may be omitted in the second PCB  330 . Referring to  FIGS.  4  and  5   , it is illustrated that the coupling member  340  is disposed on the first surface (e.g.,  330   a ) of the second PCB  330 , and the flange  319  overlaps with the display  301  of the electronic device by as much as a first distance d 1 . In the first comparative example, when the flange  319  overlaps with an electronic component such as the display  301  in this way, the performance of an antenna using a metal frame may be degraded according to transmission/reception characteristics of radio waves. 
     Now, a description will be given of the structures of a metal frame and a coupling member according to related art (referred to as a second comparative example) with reference to  FIGS.  6 ,  7  and  8   . 
       FIG.  6    is a diagram illustrating an inner side surface of the electronic device  600  according to the second comparative example.  FIG.  7    is a diagram illustrating a cross-section of a side surface of the electronic device  600  according to the second comparative embodiment.  FIG.  8    is a diagram illustrating the cross-section of the side surface of the electronic device  600  according to the second comparative embodiment. The cross-section illustrated in  FIG.  7    may be a cross-section of the electronic device  600  illustrated  FIG.  6   , taken along a B-B′ direction. 
     Referring to  FIGS.  6 ,  7  and  8   , the electronic device  600  according to the second comparative example may include a display  401  (e.g., the display  201  of  FIGS.  2 A and  2 B ), a front plate  402  (e.g., the front plate  202  of  FIGS.  2  and  2 B ), a side bezel structure  418  (e.g., the side bezel structure  218  of  FIGS.  2 A and  2 B ) (referred to as a “side surface”  418 ) surrounding the inner space of a housing, PCBs  420  and  430 , and a coupling member  440 . The electronic device  600  may further include a rear plate (e.g., the rear plate  211  of  FIG.  2 B ) and/or a support member  450  (e.g., a bracket), which is disposed in the inner space of the housing and coupled to the side bezel structure  418  or which is formed integrally with the side bezel structure  418 . 
     In describing  FIGS.  6 ,  7  and  8   , a redundant description to that of  FIGS.  3 ,  4  and  5    will be avoided. 
     As in the first comparative example described before with reference to  FIGS.  3 ,  4  and  5   , the side bezel structure  418  also requires feeding and/or grounding to use a conductive portion  418   a  of the side bezel structure  418  as an antenna, and the coupling member  440  may be used for the feeding and/or grounding in the second comparative example illustrated in  FIGS.  6 ,  7  and  8   . For example, the coupling member  440  may be disposed on the second PCB  430 , and electronic components disposed on the second PCB  430  may be electrically coupled to the side bezel structure  418  through the coupling member  440 . 
     According to the second comparative example illustrated in  FIGS.  6 ,  7  and  8   , when the coupling member  440  is coupled to the side bezel structure  418 , a flange  419  may be formed to protrude and extend from the side bezel structure  418  into the inner space of the housing, as a component to increase contact stability in the electronic device  600 . For example, the side bezel structure  418  according to the second comparative example may include the conductive portion  418   a  (e.g., a metal frame) and a non-conductive portion  418   b  (e.g., an injection-molded portion) at least partially surrounding the conductive portion  418   a . The side bezel structure  418  may further include the flange  419  protruding and extending from the conductive portion  418   a  into the inner space of the housing. As the flange  419  protrudes and extends into the inner space of the housing, the flange  419  may overlap with an electronic component of the electronic device  600 . Referring to  FIGS.  7  and  8   , it is illustrated that the coupling member  440  is disposed on a second surface (e.g.,  430   b  of  FIG.  8   ) or a third surface (e.g.,  430   c  of  FIG.  7   ) of the second PCB  430 , and the flange  419  overlaps with the display  401  of the electronic device  600  by as much as a second distance d 2 . When the flange  419  overlaps with an electronic component such as the display  401  in this way, the performance of an antenna using a metal frame may be degraded according to transmission/reception characteristics of radio waves. Compared to the first comparative example described with reference to  FIGS.  3 ,  4  and  5   , the flange  419  may be formed to overlap with the display  401  of the electronic device  600  by as much as a smaller distance in the second comparative example illustrated in  FIGS.  6 ,  7  and  8   . Accordingly, the second comparative example illustrated in  FIGS.  6 ,  7  and  8    may be advantageous over the first comparative example illustrated in  FIGS.  3 ,  4  and  5    in terms of antenna performance. 
     However, unlike the first comparative example described with reference to  FIGS.  3 ,  4  and  5   , the coupling member  440  may be assembled to the conductive portion  418   a  in a side contact method in the second comparative example illustrated in  FIGS.  6 ,  7  and  8   . Referring to  FIG.  8   , an arrow  499  indicates an assembly direction of the coupling member  440  during assembly of the electronic device. In the case of side contact-based assembly, the coupling member  440  may be assembled in a lateral direction (e.g., in the Y-axis direction) rather than in the height direction (e.g., the Z-axis direction) of the electronic device, to prevent damage caused by interference between components, as illustrated in  FIG.  8   . In this case, assembly difficulty may be higher than in the first comparative example described with reference to  FIGS.  3 ,  4  and  5   , thereby increasing a manufacturing time and cost. 
     As a method of solving the problems discussed in the foregoing first and second comparative examples, the structures of a metal frame and a coupling member according to various embodiments of the disclosure will be described with reference to  FIGS.  9 ,  10  and  11   . 
       FIG.  9    is a diagram illustrating an inner side surface of the electronic device  101  according to various embodiments of the disclosure.  FIG.  10    is a diagram illustrating a cross-section of a side surface of the electronic device  101  according to various embodiments of the disclosure.  FIG.  11    is a diagram illustrating the cross-section of the side surface of the electronic device  101  according to various embodiments of the disclosure. The cross-section illustrated in  FIG.  10    may be a cross-section of the electronic device  101  illustrated in  FIG.  9   , taken along a C-C′ direction. 
     Referring to  FIGS.  9 ,  10  and  11   , the electronic device  101  according to various embodiments of the disclosure may include a display  501  (e.g., the display  201  of  FIGS.  2 A and  2 B ), a front plate  502  (e.g., the front plate  202  of  FIGS.  2  and  2 B ), a side bezel structure  518  (e.g., the side bezel structure  218  of  FIGS.  2 A and  2 B ) (referred to as a “side surface”  518 ) surrounding the inner space of a housing, PCBs  520  and  530 , and a coupling member  540 . The electronic device  101  may not be provided with at least one of the components or may additionally include other components in an embodiment. For example, the electronic device  101  may further include a rear plate (e.g., the rear plate  211  of  FIG.  2 B ) and/or a support member  550  (e.g., a bracket), which is disposed in the inner space of the housing and coupled to the side bezel structure  518  or which is formed integrally with the side bezel structure  518 . 
     Similar to the first comparative example and the second comparative example described with reference to  FIGS.  3  to  8   , the side bezel structure  518  also requires feeding and/or grounding to use a conductive portion  518   a  of the side bezel structure  518  as an antenna, and the coupling member  540  may be used for the feeding and/or grounding in the embodiment illustrated in  FIGS.  9 ,  10  and  11   . For example, the coupling member  540  may be disposed on a second surface  530   b  of the second PCB  430 , and electronic components disposed on the second PCB  530  may be electrically coupled to the side bezel structure  518  through the coupling member  540 . 
     According to the embodiment illustrated in  FIGS.  9 ,  10  and  11   , when the coupling member  540  is coupled to the side bezel structure  518 , a flange as a component to increase contact stability may not be provided in the electronic device  101 . Due to the absence of a flange protruding and extending from the side bezel structure  518  into the inner space of the housing, the conductive portion  518   e  of the side bezel structure  518  may not overlap with an electronic component (e.g., the display) or may overlap with the electronic component (e.g., the display) only over a partial small area. According to an embodiment, when viewed from above the display (projected in the Z-axis direction), the conductive portion  518   a  may be disposed in the vicinity of the display  501  without overlapping with the display  501 . 
     According to various embodiments of the disclosure, the coupling member  540  may be formed to contact the conductive portion  518   a  of the side bezel structure  518  in the second direction. Referring to  FIGS.  10  and  11   , the conductive portion  518   a  may include a first inner side surface  518   aa  exposed in a third direction (e.g., the Y-axis direction) different from a first direction (e.g., a direction opposite to the Z axis) and the second direction (e.g., a direction parallel to the Z axis), and a second inner side surface  518   ab  exposed in the second direction. The coupling member  540  may be formed to contact the second inner side surface  518   ab  instead of the first inner side surface  518   aa . According to various embodiments of the disclosure, the thickness of the conductive portion  518   a  in the width direction (e.g., the Y-axis direction) of the electronic device may be minimized as much as possible to remove or minimize an overlapped area with an electronic component (e.g., the display  501 ), and thus prevent or reduce antenna performance degradation. Accordingly, the electronic device according to the embodiment illustrated in  FIGS.  9 ,  10  and  11    may be advantageous over the first comparative example and the second comparative example in terms of antenna performance. 
     Further, according to various embodiments of the disclosure, the coupling member  540  may be coupled to the conductive portion  518   a  in a vertical stacking method along the height direction (e.g., the Z-axis direction) of the electronic device, not in the side contact method. Referring to  FIG.  11   , an arrow  599  indicates an assembly direction of the coupling member  540  during assembly of the electronic device. In the vertical stacking method as a method of assembling an electronic device, assembly is easier than in the side contact method, and the coupling member  540  contacts the second inner side surface  518   ab  of the conductive portion  518   a , exposed in the second direction during assembly, thereby increasing contact stability. 
     According to various embodiments, a support member  560  for supporting the coupling member  540  may further be included. The support member  560  may press and support the coupling member  540  to further increase the contact stability between the coupling member  540  and the conductive portion  518   a  of the side bezel structure  518 . While a rear cover of the electronic device is shown as an example of the support member  560  in  FIG.  11   , the member  560  is not limited to the rear cover. For example, the support member  560  may be a bracket of a rigid material disposed in the inner space of the electronic device, or may be formed of an elastic material such as poron or rubber. There may be various other examples of the support member  560 . 
     Referring back to  FIG.  9   , in another embodiment of stably fixing the coupling member  540  to the second PCB  530 , a recess  530   d  may be formed on one surface  530   b  of the PCB  530  to accommodate the coupling member  540  therein. According to an embodiment, the coupling member  540  may be fit in the recess  530   d  of the second PCB  530 , not to be separated from the second PCB  530 . 
       FIG.  12    is a cross-sectional view illustrating the coupling member  540  (e.g., C-clip) according to various embodiments of the disclosure.  FIG.  13    is a diagram illustrating the coupling member  540  (e.g., C-clip) according to various embodiments of the disclosure.  FIG.  14    is a diagram illustrating the coupling member  540  (e.g., C-clip) according to various embodiments of the disclosure.  FIG.  15    is a diagram illustrating a cross-section of the coupling member  540  (e.g., C-clip) when the coupling member  540  contacts the conductive portion  518   a  on the side surface according to various embodiments of the disclosure. 
     According to various embodiments, the coupling member  540  for contacting the conductive portion  518   a  may be formed of a conductive material. For example, the coupling member  540  may correspond to a C-clip as a conductive material. According to an embodiment, the coupling member  540  may include a base plate  541  and an elastic contact portion  542  extending from one surface of the base plate  541 . The elastic contact portion  542  may be configured to be elastically pressed in contact with the conductive portion  518   a  and maintain the contact with the conductive portion  518   a  using an elastic repulsion force, during assembly of the electronic device. 
     According to various embodiments, the coupling member  540  may include a fixing portion  543  to fix the coupling member  540  to a PCB (e.g., the second PCB  530 ). Referring to  FIGS.  13  and  14   , the fixing portion  543  may include a pair of fixing portions  543   a  and  543   b  symmetrically formed on both sides of the elastic contact portion  542 . Referring to  FIG.  15   , as the fixing portion  543  is formed in a hook structure insertable into and caught in an opening  531  formed on the PCB (e.g., the second PCB  530 ), the coupling member  540  may be stably fixed to the PCB (e.g., the second PCB  530 ). 
     According to various embodiments, the support member  560  may be stacked on the other surface of the base plate  541  to support the coupling member  540 . Referring to  FIG.  11    together with  FIG.  15   , the elastic contact portion  542  extending from one surface of the base plate  541  of the coupling member  540  may contact the second inner side surface  518   ab  of the conductive portion  518   a , facing the second direction (e.g., a direction parallel to the Z axis), and the support member  560  for supporting the coupling member  540  may be stacked on the other surface of the base plate  541 . The support member  560  may press and support the coupling member  540  to further increase the contact stability between the elastic contact portion  542  and the conductive portion  518   a.    
     A description will be given of a coupling member  640  according to another embodiment illustrated in  FIGS.  16  to  19   , different from the embodiment of  FIGS.  10  to  15   . 
       FIG.  16    is a diagram illustrating a cross-section of a side of an electronic device according to various embodiments of the disclosure.  FIG.  17    is a diagram illustrating the cross-section of the side of the electronic device according to various embodiments of the disclosure. The cross-section illustrated in  FIGS.  16  and  17    may be cross-sections of the electronic device illustrated in  FIG.  9   , taken along the C-C′ direction. 
     According to various embodiments of the disclosure, the coupling member  640  may be formed to contact the conductive portion  518   a  of the side bezel structure  518  in the second direction. According to the embodiments of  FIGS.  16  and  17   , the coupling member  640  may be formed to have one end disposed on the first surface  330   a  of the second PCB  530  and the other end contacting the second inner side surface  518   ab  of the conductive portion  518   a  of the side bezel structure  518 . In the embodiments of  FIGS.  16  and  17   , the coupling member  640  may also be coupled to the conductive portion  518   a  in the vertical stacking method along the height direction (e.g., the Z-axis direction) of the electronic device, not in the side contact method. In the vertical stacking method as a method of assembling an electronic device, assembly is easier than in the side contact method, and the coupling member  640  contacts the second inner side surface  518   ab  of the conductive portion  518   a , exposed in the second direction during assembly, thereby increasing contact stability. 
       FIG.  18    is a diagram illustrating the coupling member  640  (e.g., C-clip) according to various embodiments of the disclosure.  FIG.  19    is a diagram illustrating a cross-section of the coupling member  640  (e.g., C-clip), when the coupling member  640  contacts the conductive portion  518   a  on the side surface according to various embodiments of the disclosure. 
     According to various embodiments, the coupling member  640  for contacting the conductive portion  518   a  may be formed of a conductive material. The coupling member  640  may correspond to a C-clip as an example of the conductive material. According to an embodiment, the coupling member  640  may include a base plate  643 , a mast  642  protruding from one surface of the base plate  643 , and a contact portion  641  extending in one direction from the mast  642 . According to an embodiment, the contact portion  641  may be formed in the shape of a hook and configured to be elastically pressed in contact with the conductive portion  518   a  during assembly of the electronic device, and maintain the contact with the conductive portion  518   a  using an elastic repulsion force. 
     According to various embodiments, the coupling member  640  may include a fixing portion  644  for fixing the coupling member  640  to a PCB (e.g., the second PCB  530 ). Referring to  FIGS.  18  and  19    together, the fixing portion  644  may include a pair of fixing portions. Referring to  FIG.  19   , the fixing portion  644  may be formed in a structure which may be inserted and fixed in an opening formed on a PCB (e.g., the second PCB  530 ), and may stably fix the coupling member  640  to the PCB (e.g., the second PCB  530 ). 
     The support member  560  for supporting the coupling member  640  may be stacked on the coupling member  640 , as illustrated in  FIGS.  16  to  19   , which should not be construed as limiting. According to the embodiment illustrated in  FIGS.  16  to  19   , since the coupling member  640  is disposed on the first surface  530   a  of the PCB (e.g., the second PCB  530 ), the PCB (e.g., the second PCB  530 ) itself may serve to prevent separation of the coupling member  640  and increase contact stability, unlike the coupling member  540  described before with reference  FIGS.  10  to  15   . 
     According to the above-described embodiments, the electronic device including a metal antenna according to the disclosure may not be provided with an existing flange protruding into the inner space of the housing, for feeding or grounding in a metal frame (e.g., a conductive portion of a side bezel structure). Therefore, the electronic device may be advantageous in that the degradation of antenna performance is prevented or reduced by minimizing overlap between the flange and an electronic component in the height direction (e.g., the second direction) of the electronic device. 
     Further, because the metal frame and a coupling member are assembled in the height direction (e.g., the second direction) of the electronic device, assembly may be easy, and the shortcomings of the existing side contact method for the metal frame may be overcome. 
     In addition, the coupling member may have one side in contact with the metal frame and the other side pressed and supported by another member, thereby having a stable contact structure. 
     It should be appreciated that various embodiments of the disclosure and the terms used therein are not intended to limit the technological features set forth herein to particular embodiments and include various changes, equivalents, or replacements for a corresponding embodiment. With regard to the description of the drawings, similar reference numerals may be used to refer to similar or related elements. It is to be understood that a singular form of a noun corresponding to an item may include one or more of the things, unless the relevant context clearly indicates otherwise. As used herein, each of such phrases as “A or B”, “at least one of A and B”, “at least one of A or B”, “A, B, or C”, “at least one of A, B, and C”, and “at least one of A, B, or C” may include any one of, or all possible combinations of the items enumerated together in a corresponding one of the phrases. As used herein, such terms as “1st” and “2nd,” or “first” and “second” may be used to simply distinguish a corresponding component from another, and does not limit the components in other aspect (e.g., importance or order). It is to be understood that if an element (e.g., a first element) is referred to, with or without the term “operatively” or “communicatively”, as “coupled with”, “coupled to”, “connected with”, or “connected to” another element (e.g., a second element), it means that the element may be coupled with the other element directly (e.g., wiredly), wirelessly, or via a third element. 
     As used in connection with various embodiments of the disclosure, the term “module” may include a unit implemented in hardware, software, or firmware, and may interchangeably be used with other terms, for example, logic, logic block, part, or circuitry. A module may be a single integral component, or a minimum unit or part thereof, adapted to perform one or more functions. For example, according to an embodiment, the module may be implemented in a form of an application-specific integrated circuit (ASIC). 
     According to various embodiments, each component (e.g., a module or a program) of the above-described components may include a single entity or multiple entities, and some of the multiple entities may be separately disposed in different components. According to various embodiments, one or more of the above-described components may be omitted, or one or more other components may be added. Alternatively or additionally, a plurality of components (e.g., modules or programs) may be integrated into a single component. In such a case, according to various embodiments, the integrated component may still perform one or more functions of each of the plurality of components in the same or similar manner as they are performed by a corresponding one of the plurality of components before the integration. According to various embodiments, operations performed by the module, the program, or another component may be carried out sequentially, in parallel, repeatedly, or heuristically, or one or more of the operations may be executed in a different order or omitted, or one or more other operations may be added. 
     According to various embodiments of the disclosure, an electronic device (e.g., the electronic device  101  of  FIGS.  1 ,  2 ,  3  and  6   ) may include a housing (e.g., the housing  210  of  FIGS.  2 A and  2 B ) including a front surface (e.g., the front surface  210 A of  FIG.  2 A ) facing a first direction (e.g., a direction opposite to the Z axis in  FIG.  10   ), a rear surface (e.g., the rear surface  210 B of  FIG.  2 B ) facing a second direction (e.g., the Z-axis direction of FIG.  10 ) opposite to the first direction, and a side surface (e.g., the side surfaces  210 C of  FIG.  2 B ) surrounding an inner space between the front surface and the rear surface, where at least part of the side surface is formed to be a conductive portion, a display (e.g., the display  501  of  FIG.  10   ) disposed on the front surface of the housing, a PCB (e.g., the second PCB  530  of  FIG.  10   ) disposed in the inner space inside the housing; and a coupling member (e.g., the coupling member  540  of  FIG.  10   ) coupled to the conductive portion of the side surface, while being disposed on the PCB. The coupling member may be configured to contact the conductive portion (e.g., the conductive portion  518   a  of  FIG.  10   ) of the side surface in the second direction. 
     According to various embodiments, the conductive portion of the side surface may include a first inner side surface (e.g., the first inner side surface  518   aa  of  FIG.  10   ) exposed in a third direction different from the first direction and the second direction in the inner space, and a second inner side surface (e.g., the second inner side surface  518   ab  of  FIG.  10   ) exposed in the second direction. The coupling member may be configured to contact the second inner side surface. 
     According to various embodiments, the PCB may include a first surface (e.g., the first surface  530   a  of  FIG.  10   ) facing a direction parallel to the first direction, and a second surface (e.g., the second surface  530   b  of  FIG.  10   ) facing a direction parallel to the second direction, and the coupling member may be configured to contact the second inner side surface, while being disposed on the second surface of the PCB. 
     According to various embodiments, the PCB may include a first surface facing a direction parallel to the first direction, and a second surface facing a direction parallel to the second direction, and the coupling member may be configured to contact the second inner side surface of, while being disposed on the first surface of the PCB. 
     According to various embodiments, at least part of the conductive portion of the side surface may be formed to be surrounded by a non-conductive portion (e.g., the non-conductive portion  518   b  of  FIG.  10   ). 
     According to various embodiments, the coupling member may be formed of a conductive material. 
     According to various embodiments, the coupling member may be a C-clip 
     According to various embodiments, the coupling member may include a base plate and an elastic contact portion extending from one surface of the base plate. The coupling member may further include a fixing portion to fix the coupling member to the PCB. 
     According to various embodiments, a member (e.g., the support member  560  of  FIG.  11   ) for supporting the coupling member may be stacked on the other surface of the base plate. 
     According to various embodiments, the member may be a rear cover of the electronic device or a bracket disposed in the inner space. 
     According to various embodiments, the member may be formed of poron or rubber. 
     According to various embodiments, the conductive portion of the side surface may be formed to operate as an antenna radiator. 
     According to various embodiments of the disclosure, an electronic device may include a housing including a front surface facing a first direction, a rear surface facing a second direction opposite to the first direction, and a side surface surrounding an inner space between the front surface and the rear surface, where at least part of the side surface is formed to be a conductive portion; a display disposed on the front surface, a first PCB disposed in the inner space inside the housing, a second PCB disposed inside the housing and spaced apart from the first PCB by a specific distance in the second direction, and a coupling member disposed on one surface of the second PCB, and coupled to the conductive portion of the side surface. The conductive portion of the side surface may include a first inner side surface exposed in a third direction different from the first direction and the second direction in the inner space, and a second inner side surface exposed in the second direction. The coupling member may be configured to contact the second inner side surface of the conductive portion of the side surface. 
     According to various embodiments of the disclosure, an electronic device may include a housing including a front surface facing a first direction, a rear surface facing a second direction opposite to the first direction, and a side surface surrounding an inner space between the front surface and the rear surface, where at least part of the side surface includes a conductive portion, a display provided on the front surface, a first PCB provided in the inner space, a second PCB provided inside the housing and spaced apart from the first PCB by a predetermined distance in the second direction, and a coupling member provided on one surface of the second PCB, and coupled to the conductive portion of the side surface, where the conductive portion of the side surface includes a first inner side surface exposed in a third direction different from the first direction and the second direction in the inner space and a second inner side surface exposed in the second direction, and the coupling member contacts the second inner side surface of the conductive portion of the side surface. 
     It will be apparent to those skilled in the art that the above-described electronic device according to various embodiments of the disclosure is not limited by the foregoing embodiments and the drawings, and many replacements, changes, and modifications can be made within the technical scope of the disclosure.