Patent Publication Number: US-2023136122-A1

Title: Switch and electronic device including the same

Description:
CROSS-REFERENCE TO RELATED APPLICATION(S) 
     This application is a continuation application, claiming priority under § 365(c), of an International application No. PCT/KR2022/017012, filed on Nov. 2, 2022, which is based on and claims the benefit of a Korean patent application number 10-2021-0182000, filed on Dec. 17, 2021, in the Korean Intellectual Property Office, and of a Korean patent application number 10-2021-0150113, filed on Nov. 3, 2021, in the Korean Intellectual Property Office, the disclosure of each of which is incorporated by reference herein in its entirety. 
    
    
     TECHNICAL FIELD 
     Various embodiments relate to a radio frequency (RF) micro electro-mechanical system (MEMS) switch and an electronic device including the same. 
     BACKGROUND ART 
     MEMS technology is related to a technology field that processes micro switches, sensors, and/or precision mechanical parts using semiconductor processing technology. 
     Compared to active elements (e.g., pin diode, FET switch), MEMS switches provide various advantages including, but not limited to, wider usable frequency bands, excellent isolation characteristics (e.g., a characteristic that does not transfer or electrically conduct an RF signal when the switch is off), low insertion losses (e.g., a characteristic that transfers or electrically conducts an RF signal with a low loss when the switch is on), and excellent linearity. 
     As MEMS switches are increasingly used in selective transmission of RF signals or impedance matching circuits, interest in improving a performance of RF switches is increasing. In particular, capacitive RF switches have increasingly gained attention as an element suitable for high-frequency applications based on their capacitive characteristics. 
     DISCLOSURE 
     Technical Problem 
     An RF switch (e.g., capacitive shunt fixed-fixed beam type switch) may be turned on/off by a mechanical movement of a moving structure (e.g., membrane electrode). For example, a switch-on state is a state in which a signal line and a membrane electrode are spaced apart by a predetermined distance, and an RF signal may be transferred (e.g., electrically conducted) through a signal line. A switch-off state is a state in which the membrane electrode contacts the signal line due to a movement of the membrane electrode while a DC voltage (Vpi) is applied between the ground and the signal line, and the RF signal may be shunted. 
     However, although the RF switch does not apply a DC voltage (VPI) in a process of transmitting a high-power RF signal through the switch-on state (e.g., a turn on state of the switch), the transmission power (e.g., RF signal power) can produce a self-actuation which causes the membrane electrode to vibrate and shake inside the RF. The shaking and vibration produced by the self-actuation phenomenon may cause a change in capacitance in the membrane electrode and the signal line, thereby causing distortion of the RF transmission signal. Furthermore, there may occur a self-biasing phenomenon in which the signal is shunted as the membrane electrode contacts the signal line due to RF power in the switch-on state. 
     Technical Solution 
     Various embodiments described herein provide an RF MEMS switch having a new structure and an electronic device including the same for improving self-actuation and self-biasing generated inside the switch when the switch is on due to RF power. According to various embodiments, a switch included in an electronic device may include a substrate; a first signal line disposed on the substrate in a first direction to be connected to an input terminal and an output terminal of a wireless communication signal; a second signal line disposed on the substrate to be spaced apart from the first signal line in a first direction in parallel with the first signal line so as to branch the wireless communication signal at a first point L 1  and a second point L 2  of the first signal line; a ground bridge disposed to be at least partially movable in a space between the first signal line and the second signal line disposed on the substrate and connected to a ground; a first capacitor formed between the first point of the first signal line and one end of the second signal line; and a second capacitor formed between the second point of the first signal line and the other end of the second signal line. 
     According to various embodiments, an electronic device may include a communication module including at least one switch; and a processor, wherein the processor may be configured to control on/off of a wireless communication signal and a bias voltage through the at least one switch, wherein the at least one switch may include a substrate; a first signal line disposed on the substrate in a first direction to be connected to an input terminal and an output terminal of the wireless communication signal; a second signal line disposed on the substrate to be spaced apart from the first signal line in a first direction in parallel with the first signal line so as to branch the wireless communication signal at a first point L 1  and a second point L 2  of the first signal line; a ground bridge disposed to be at least partially movable in a space between the first signal line and the second signal line disposed on the substrate and connected to a ground; a first capacitor formed between the first point of the first signal line and one end of the second signal line; and a second capacitor formed between the second point of the first signal line and the other end of the second signal line. 
     Advantageous Effects 
     According to various embodiments, an RF switch branches an RF signal so that a symmetrical electric force is applied to a signal line of the RF signal around a moving structure (e.g., ground bridge) that controls the switch on/off operation, thereby reducing, or even completely preventing, shaking of the moving structure that can occur due to RF transmission power inside the switch. Accordingly, limitations of transmission power found in RF switches can be improved. 
    
    
     
       DESCRIPTION OF DRAWINGS 
         FIG.  1    is a block diagram illustrating an electronic device in a network environment according to an embodiment of the disclosure. 
         FIGS.  2 A to  2 C  illustrate a general RF switch structure. 
         FIG.  3 A  illustrates a structure of an improved switch according to various embodiments. 
         FIGS.  3 B and  3 C  are diagrams illustrating an on/off operation of an improved switch according to various embodiments. 
         FIG.  4 A  illustrates a switch structure according to various embodiments. 
         FIG.  4 B  is a diagram illustrating an on/off operation of an improved switch according to various embodiments. 
         FIG.  5    illustrates a configuration of an electronic device including a switch according to various embodiments. 
         FIG.  6    illustrates a circuit configuration of an antenna tuner according to various embodiments. 
         FIG.  7    illustrates a configuration of an RF module including a switch according to various embodiments. 
     
    
    
     MODE FOR DISCLOSURE 
     The electronic device according to various embodiments may be one of various types of electronic devices. The electronic devices may include, for example, a portable communication device (e.g., a smartphone), a computer device, a portable multimedia device, a portable medical device, a camera, a wearable device, or a home appliance. According to an embodiment of the disclosure, the electronic devices are not limited to those described above. 
       FIG.  1    is a block diagram illustrating an electronic device in a network environment according to an embodiment of the disclosure. 
     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 some embodiments, 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 some embodiments, 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 application processor (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 printed circuit board, a RFIC disposed on a first surface (e.g., the bottom surface) of the printed circuit board, 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 printed circuit board, 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. 
       FIGS.  2 A to  2 C  illustrate a general RF switch structure. Here,  FIG.  2 A  is a plan view of an RF switch, and  FIG.  2 B  is a cross-sectional view taken along line A-A′ of  FIG.  2 A . 
     As illustrated in &lt; 2001 &gt;, in a structure of a general (or conventional) RF switch, a signal line  220  may be disposed on a substrate  210 , and at each of both sides (e.g., y-axis direction) of the signal line  220  in a longitudinal direction, a first ground  230  and a second ground  235  spaced apart from each other may be disposed. 
     A membrane electrode (or vibrating member)  240  may be disposed on the first ground  230  and the second ground  235  in a vertical direction (e.g., x-axis direction) crossing the signal line  220 . 
     The membrane electrode  240  may be supported by a first support member  250  and a second support member  255  to be spaced apart by a predetermined distance in a direction (e.g., z-axis direction) of an upper surface of the signal line  220 . 
     In case that the switch is on, as illustrated in &lt; 2002 &gt;, a voltage is not applied between the signal line  220  and the ground (e.g., at least one of the first ground  230  or the second ground  235 ), and the signal line  220  and the membrane electrode  240  may be spaced apart from each other by a predetermined distance. In the switch-on state, because the capacitance between the signal line  220  and the membrane electrode  240  is small and does not affect the impedance of the signal line  220 , the RF signal may be transferred along the signal line  220  from an input terminal (RF in) to an output terminal (RF out). 
     In case that the switch is off, as illustrated in &lt; 2003 &gt;, a specific voltage (e.g., bias voltage) is applied between the signal line  220  and the ground (e.g., at least one of the first ground  230  or the second ground  235 ), and the signal line  220  and the membrane electrode  240  are attracted to each other by an electrostatic force between the membrane electrode  240  and the signal line  220 . In this case, the membrane electrode  240  is bent due to the generated attractive force and is in contact with the signal line  220 , and the RF signal applied to the signal line  220  may be transferred to the ground (e.g., the first ground  230  and to the second ground  235 ) through the membrane electrode  240 . 
     When a specific voltage applied to the signal line  220  and the ground (e.g., at least one of the first ground  230  or the second ground  235 ) is stopped, the RF switch returns to the switch ON state, and the RF signal flows along the signal line  220 . 
     However, when the RF switch of the above structure is used in a high-power transmitter (e.g., RF antenna newer, RF module), there may be a limit in the magnitude of transferred power. For example, upon transferring a high-power RF signal, even though no voltage is applied to the signal line  220  and the ground (e.g., at least one of the first ground  230  or the second ground  235 ), as illustrated in &lt; 2004 &gt;, self-actuation in which the membrane electrode  240  shakes itself due to transmission power (e.g., RF signal power) may occur inside the RF switch. Self-actuation causes distortion of the RF transmission signal due to a change in capacitance of the signal line  220 , and as the RF power increases, a self-biasing problem may arise which causes the membrane electrode  240  to move away from the signal line  220  and shunt the signal. 
     Various embodiments of the present disclosure propose a switch having a new and novel structure that avoids undesirable shaking of the switch membrane  240  and improves the power limit of an RF signal. 
       FIG.  3 A  illustrates a structure of an improved switch according to various embodiments. 
     Here, &lt; 3001 &gt; is a plan view illustrating a first surface (e.g., upper surface) of the switch, and &lt; 3002 &gt; is a cross-sectional view taken along line B-B′ of  3001 . 
     With reference to  FIG.  3 A , a switch  300  (e.g., radio frequency (RF) switch) of a proposed structure according to various embodiments may include a substrate  310 , a first signal line  320 , a second signal line  330 , a ground bridge  340 , a first capacitor  350 , and a second capacitor  355 . At least one switch  300  of a structure illustrated in  FIG.  3 A  may be included in the components of  FIG.  1    (e.g., the communication module and the antenna module of  FIG.  1   ). 
     The substrate  310  may be, for example, a printed circuit board (PCB) or a flexible printed circuit board (FPCB). The PCB or the FPCB may be made of, for example, a material that may be used in a semiconductor process, such as a high-resistance silicon wafer, glass, quartz, or SiO 2 , Si, and GaAs advantageous for RF characteristics. 
     According to an embodiment, at least one of components, for example, a processor, a memory, and a communication module of the electronic device  101  may be disposed in the substrate  310 . According to an embodiment, at least one switch  300  may be included in a path of an external wiring or an internal wiring between components mounted on the substrate  310 . 
     The substrate  310 , includes a first signal line  320 , a second signal line  330 , and a ground bridge  340 . The first signal line  320  and the second signal line  330  may be disposed on a first surface (e.g., an upper surface) of the substrate  310 . The first signal line  320  has a predetermined length in a first direction (e.g., x-axis direction) as a transmission line of a radio frequency (RF) signal. The second signal line  330  is spaced apart from the first signal line  320  such that the first and second signal lines  320  and  330  may be disposed side by side in a first direction. The ground bridge  340  may be disposed in a space between the first signal line  320  and the second signal line  330 . The first signal line  320 , the ground bridge  340 , and the second signal line  330  may be spaced apart from each other in a second direction (e.g., y-axis direction). 
     The first signal line  320  and the second signal line  330  may branch the RF signal, with the ground bridge  340  interposed therebetween to transfer the RF signal applied from one side to the other side. For example, an RF signal transferred to the input terminal (e.g., RF in) through the communication module electrically connected to the substrate  310  may be transferred to an antenna (e.g., an RF out) through the first signal line  320  and the second signal line  330 , and conversely, an RF signal received through the antenna (e.g., RF in) may be transferred to the communication module (e.g., RF out). 
     According to an embodiment, the ground bridge  340  may at least be partially movably disposed in a space between the first signal line  320  and the second signal line  330  disposed on the substrate  310 . 
     According to an embodiment, a groove (or trench)  360  may be formed in the substrate  310  and may extend in a third direction (e.g., −z direction) that is lower by a first depth than the first surface (e.g., upper surface)  310   a.  The groove  360  may be formed to secure a space in which at least a portion of the ground bridge  340  may move (or vibrate). The groove  360  may be formed, for example, by bulk micro-machine technology (e.g., a combination of semiconductor integrated circuit technology and micro-machine technology), but is not limited thereto, and may be removed by one method of dry etching and wet etching. 
     According to an embodiment, the ground bridge  340  may include a metal made of at least one of a conductive material, for example, a metal material such as Au, Cu, Al, Cr, Ni, Mo, W, Pt, Ru, Rh, Ta, Ti, TiN, or Ag or an alloy including any one of them. For example, the ground bridge  340  may have elasticity to move on the substrate, and be made of a material having a restoring force when a DC voltage (e.g., bias voltage) is removed. 
     According to an embodiment, the ground bridge  340  may be disposed to cross the groove  360  formed on the substrate  310  in the first direction (e.g., x-axis direction). 
     For example, the ground bridge  340  may include at least partially movable vibrating part (e.g., actuating part)  3410  and a first fixing part  3420  and second fixing part  3421  (e.g., fixed pad, fixed part) extended in both directions from the vibrating part  3401  and for supporting the vibrating part  3410  on the substrate  310 . The first fixing part  3420  and the second fixing part  3421  may perform a role of supporting the vibrating part  3410  disposed on the groove  360  and transferring a voltage applied through a feeding line (not illustrated) to the vibrating part  3410 . Because the vibrating part  3410  is floating on the groove  360  formed in the substrate  310 , when a DC voltage is applied, the vibrating part  3410  may move by an electrostatic force generated between the vibrating part  3410  and the first signal line  320 . According to an embodiment, the first fixing part  3420  and the second fixing part  3421  may be electrically connected to a ground (not illustrated). 
     The first fixing part  3420  and the second fixing part  3421  may be designed in a pattern illustrated in  FIG.  3 A , but are not limited thereto, and may be designed in various patterns such as a square or a circle. 
     According to an embodiment, patterns of the first signal line  320  and the second signal line  330  may be designed so that a symmetrical electric force is applied in both directions side by side around the ground bridge  340  corresponding to the pattern of the ground bridge  340 . 
     For example, the first signal line  320  and the second signal line  330  may be formed in a pattern symmetrical to each other with the ground bridge  340  having a predetermined length in the first direction interposed therebetween. A distance between the ground bridge  340  and the first signal line  320  may be designed to be substantially the same as a distance between the ground bridge  340  and the second signal line  330 . 
     According to an embodiment, the first signal line  320  may have a first length in a first direction, and the second signal line  330  may have a second length shorter than the first length. 
     According to an embodiment, the first signal line  320  may include a first area  3201  (e.g., input/output line) having a first width d 1 , a second area  3202  (e.g., signal branch line) extended from one direction (e.g., x-axis direction, direction {circle around (1)}) of the first area  3201  and having a second width d 2  narrower than the first width d 1 , or a third area  3203  (e.g., input/output line) extended from the second area  3202  and having the first width d 1 . 
     According to an embodiment, one of the first area  3201  and the third area  3203  of the first signal line  320  may be connected to the RF input terminal (RF in), and the other one thereof may be connected to the RF output terminal (RF out). For example, when the first area  3201  of the first signal line  320  is electrically connected to a signal source (e.g., processor) providing an RF signal, the third area  3203  may be electrically connected to a component (e.g., antenna) that outputs an RF signal. The RF signal may be transferred from the RF input terminal (RF in) to the RF output terminal (RF out), but is not limited thereto, and may be designed to be transferred from the RF output terminal to the RF input terminal. 
     According to an embodiment, the second signal line  330  may be designed with a third width d 3 . The third width d 3  of the second signal line  330  may be designed to match the same impedance as that of the second width d 2  of the first signal line  320  for branching the RF signal. 
     According to an embodiment, the first signal line  320  and the second signal line  330  may include a metal made of at least any one of metal materials such as Au, Cu, Al, Cr, Ni, Mo, W, Pt, Ru, Rh, Ta, Ti, TiN, or Ag, or an alloy including any one of them. The first signal line  320  and the second signal line  330  may be formed using at least one of battery electroplating, electroless plating, sputtering, or chemical vapor deposition (CVD). 
     According to an embodiment, the first signal line  320  may be configured to couple to one end of the second signal line  330  so as to branch the RF signal at a first point L 1 , and be configured to couple to the other end of the second signal line  330  at a second point L 2 . For example, the first capacitor  350  may be disposed between the first point L 1  of the first signal line  320  and one end of the second signal line  330 , and a second capacitor  355  may be disposed between the second point L 2  of the first signal line  320  and the other end of the second signal line  330   
       FIGS.  3 B and  3 C  are diagrams illustrating an on/off operation of an improved switch according to various embodiments. Here,  FIG.  3 B  illustrates a structure during a switch-on operation, and  FIG.  3 C  illustrates a structure during a switch-off operation. 
     According to an embodiment, at least a portion of the first signal line  320  and the ground bridge  340  (e.g., at least one fixing part  3410  of the first fixing part or the second fixing part) may be connected to a feeding line  370  for applying a bias voltage. The feeding line  370  may be connected to the processor (e.g., communication processor) of the electronic device  101  (e.g., the processor  120  of  FIG.  1   ). The processor  120  may control on/off of the switch  300  (e.g., radio frequency (RF) switch) according to a transmission or reception signal of an RF signal. 
     According to an embodiment, the processor  120  may apply a DC voltage (e.g., bias voltage) to the first signal line  320  and the ground bridge  340  through the feeding line  370  to turn off the RF switch  300  and shunt the DC voltage to turn on the RF switch  300 . 
     When the switch-on operation is described, if a DC voltage (or bias voltage) is not applied to the ground bridge  340  and the first signal line  320 , the switch  300  may be turned on to transfer the RF signal from one side to the other side. 
     According to an embodiment, the RF signal transferred through the RF in (e.g., the RF input terminal) may be branched at the first point L 1 , and be merged at the second point L 2  to be transferred to the RF out (e.g., the RF output terminal). For example, as illustrated in &lt; 3003 &gt;, in case that the RF signal input to the first area  3201  of the first signal line  320  through the RF input terminal is transferred to the first power, the RF signal may be transferred with second power from the first point L 1  to each of the second area  3202  of the first signal line  320  and the second signal line  330 . 
     According to an embodiment, the first capacitor  350  and the second capacitor  355  may be designed to have substantially the same impedance value as an impedance value in which the RF signal transferred to the second area  3202  of the first signal line  320  is transferred. Because the first capacitor  350  and the second capacitor  355  shunt a DC signal, the first capacitor  350  and the second capacitor  355  may less affect a transmission performance of the AC signal (e.g., RF signal). 
     With reference to &lt; 3004 &gt;, when the switch is on, the RF signal branched to the first signal line  320  and the second signal line  330  around the ground bridge  340  at the first point L 1  may be transferred with symmetrical power at both sides (e.g., on both the first and second signal lines  320  and  33 ) around the ground bridge  340 , thereby preventing a phenomenon (e.g., self-actuation, self-biasing) that the movable ground bridge  340  is shaken due to RF power. 
     When describing the switch-off operation, if a DC voltage (or bias voltage) greater than or equal to a configured value is applied to the ground bridge  340  and the first signal line  320 , as illustrated in &lt; 3005 &gt; and &lt; 3006 &gt;, while the ground bridge  340  moves in a direction of the first signal line  320 , the ground bridge  340  may contact the first signal line  320 , and the RF signal may be shunted. 
     According to an embodiment, when a DC voltage is applied to the first signal line  320  and the ground bridge  340 , a DC signal does not flow to the second signal line  330  by the first capacitor  350  and the second capacitor  355 , and the ground bridge  340  is in contact with the first signal line  320  by an electric force between the first signal line  320  and the ground bridge  340 , and the RF signal transferred through the first signal line  320  is guided to the ground; thus, the switch  300  may be turned off. 
       FIG.  4 A  illustrates a switch structure according to various embodiments. Here, &lt; 4001 &gt; is a plan view illustrating a first surface (e.g., upper surface) of the switch, and &lt; 4002 &gt; is a cross-sectional view taken along line C-C′ of  3001 . 
     With reference to  FIG.  4 A , a switch  400  (e.g., radio frequency (RF) switch) according to another embodiment may be formed in a cantilever pattern in which one side of a ground bridge  440  is fixed to a substrate  410 . 
     The ground bridge  440  of the cantilever pattern may turn on/off the switch with a lower driving voltage (e.g., bias voltage) than the ground bridge  340  of  FIG.  3 A  in which both sides (e.g., the first fixing part  3420  and the second fixing part  3421 ) are fixed to the substrate  410 . 
     According to an embodiment, the switch  400  may include a substrate  410 , a first signal line  420 , a second signal line  430 , a ground bridge  440 , a first capacitor  450 , and a second capacitor  455 . 
     According to an embodiment, the first signal line  420  may include a first area  4201  (e.g., input/output line) having a first width d 1 , a second area  4202  (e.g., signal branch line) extended from one direction (e.g., x-axis direction, direction {circle around (1)}) of the first area  4201  and having a second width d 2  narrower than the first width d 1 , or a third area  4203  (e.g., input/output line) extended from the second area  4202  and having the first width d 1 . The second signal line  430  may be designed to have a third width d 3 . The third width d 3  of the second signal line  430  may be designed to match the same impedance as that of the second width d 2  of the first signal line  420  for branching the RF signal. 
     According to an embodiment, the first signal line  420  may be configured to couple to one end of the second signal line  430  so as to branch the RF signal at a first point L 1 , and to couple to the other end of the second signal line  430  at a second point L 2 . For example, the first capacitor  450  may be disposed between the first point L 1  of the first signal line  420  and one end of the second signal line  430 , and the second capacitor  455  may be disposed between the second point L 2  of the first signal line  420  and the other end of the second signal line  430 . 
     Because the first signal line  420 , the second signal line  430 , the first capacitor  450 , and the second capacitor  455  other than the pattern of the ground bridge  440  provide substantially the same functions as the first signal line  320 , the second signal line  30 , the first capacitor  350 , and the second capacitor  355  of  FIG.  3 A , a detailed description thereof will be omitted. 
     As illustrated in &lt; 4001 &gt;, the ground bridge  440  of a cantilever pattern may be disposed to be at least partially movable in a space between the first signal line  420  and the second signal line  430  disposed on the substrate  410 . The ground bridge  440  may be disposed in the groove  360  formed on the substrate  410  in the first direction (e.g., x-axis direction). 
     As illustrated in &lt; 4002 &gt;, the substrate  410  may have a groove (or trench)  360  disposed in a third direction (e.g., -z direction) lower by a first depth than a first surface (e.g., upper surface)  410   a.  For example, the ground bridge  440  may be configured to elasticity move, and be made of a material having a restoring force (e.g., biased) when a DC voltage (e.g., bias voltage) is removed. 
     For example, the ground bridge  440  may include at least partially movable vibrating part (e.g., actuating part)  4402  and a fixing part (e.g., fixed pad, fixed part)  4401  extended in one direction from the vibrating part  4402  and for supporting the vibrating part  4402  on the substrate  410 . The fixing part  4401  may serve to support the vibrating part  4402  disposed on the groove  460  and to transfer a voltage applied through a feeding line to the vibrating part  4402 . Because the vibrating part  4402  is floating in the groove  460  formed in the substrate  410 , when a DC voltage is applied, the vibrating part  4402  may move by electric force generated between the vibrating part  4402  and the first signal line  420 . 
       FIG.  4 B  is a diagram illustrating an on/off operation of an improved switch according to various embodiments. 
     When describing an ON operation of the switch, if a DC voltage (or bias voltage) is not applied to the ground bridge  440  and the first signal line  420 , the switch  400  (e.g., radio frequency (RF) switch) may be turned on to transfer the RF signal from one side to the other side. 
     The RF signal transferred through the RF input terminal (RF in) is branched at the first point L 1 , merged at the second point L 2 , and transferred to the RF output terminal. For example, as illustrated in &lt; 4003 &gt;, in case that the RF signal input to the first signal line  420  through the RF input terminal is transferred with first power, the RF signal may be transferred with second power from the first point L 1  to each of the first signal line  420  and the second signal line  430 . Because the first capacitor  450  and the second capacitor  455  shunt a DC signal, a transmission performance of the AC signal (e.g., RF signal) may be less affected. 
     When the switch is ON, the RF signal branched to the first signal line  420  and the second signal line  430  around the ground bridge  440  at the first point L 1  is transferred with symmetrical power to both sides, thereby preventing a phenomenon (e.g., self-actuation, self-biasing) in which the movable ground bridge  440  is shaken due to RF power. 
     When describing an OFF operation of the switch, as illustrated in &lt; 4003 &gt;, if a DC voltage (or bias voltage) is applied to the ground bridge  440  and the first signal line  420 , while the ground bridge  440  moves in a direction of the first signal line  420 , the ground bridge  440  is in contact with the first signal line  420 , and the RF signal may be shunted. When a DC voltage is applied, the DC signal does not flow to the second signal line  430  through the first capacitor  450  and the second capacitor  455 , and the ground bridge  440  is in contact with the first signal line  420  by an electric force between the first signal line  420  and the ground bridge  440 , and the RF signal transferred through the first signal line  420  is induced to the ground so that the RF switch  400  may be turned off. 
     As described herein, one or more non-limiting embodiments of the present disclosure provides a switch (e.g., the switch  300  of  FIG.  3   , and the switch  400  of  FIG.  4   ) included in an electronic device (e.g., the electronic device  101  of  FIG.  1   ) according to various embodiments may include a substrate (e.g., the substrate  310  of  FIG.  3   , the substrate  410  of  FIG.  4   ), a first signal line (e.g., the first signal line  320  of  FIG.  3   , the first signal line  420  of  FIG.  4   ) disposed on the substrate in a first direction to be connected to an input terminal and an output terminal of a wireless communication signal, a second signal line (e.g., the second signal line  330  of  FIG.  3   , the second signal line  430  of  FIG.  4   ) to be spaced apart from the first signal line in a first direction in parallel with the first signal line so as to branch the wireless communication signal at the first point L 1  and the second point L 2  of the first signal line on the substrate, a ground bridge (e.g., the ground bridge  340  of  FIG.  3   , the ground bridge  440  of  FIG.  4   ) disposed to be at least partially movable in a space between the first signal line and the second signal line disposed on the substrate and connected to the ground, a first capacitor (e.g., the first capacitor  350  of  FIG.  3   , the first capacitor  450  of  FIG.  4   ) formed between the first point of the first signal line and one end of the second signal line, and a second capacitor (e.g., the second capacitor  355  of  FIG.  3    and the second capacitor  455  of  FIG.  4   ) formed between the second point of the first signal line and the other end of the second signal line. 
     At least a portion of the ground bridge according to various embodiments may be disposed lower than an outer surface (e.g., an upper surface) of the substrate and to be moveable through a groove (e.g., the groove  360  of  FIG.  3   , the groove  460  of  FIG.  4   ) having a predetermined length in the first direction, and the groove may be formed in an area of the substrate between the first signal line and the second signal line. 
     The wireless communication signal according to various embodiments may be a radio frequency signal of 500 MHz or more. 
     When a bias voltage is applied to the ground bridge and the first signal line, at least a portion of the ground bridge according to various embodiments may be in contact with at least a portion of the first signal line by a movement of the ground bridge in a direction of the first signal line to shunt the wireless communication signal transferred through the first signal line and the second signal line. 
     When a bias voltage is not applied to the ground bridge and the first signal line according to various embodiments, the wireless communication signal input through the input terminal of the first signal line may be branched to the second signal line at the first point L 1  and be transferred to an output terminal through the first signal line and the second signal line, and at least a portion of the ground bridge may be fixed in a space between the first signal line and the second signal line. 
     The first signal line according to various embodiments may have a first length, the second signal line may have a second length shorter than the first length, and the second signal line may be disposed between the first point and the second point. 
     The first signal line according to various embodiments may include a first area implemented with a first width, a second area extended from the first area and implemented with a second width narrower than the first width, and a third area extended from the second area and implemented with the second width, and the width of the second signal line may be disposed with a width matched with the same impedance as that of the second area of the first signal line. 
     The ground bridge is disposed in a space between the first signal line and the second signal line according to various embodiments and may be spaced apart by the same distance with respect to the first signal line and the second signal line. 
     The ground bridge according to various embodiments may include a vibrating part positioned movably in an area in which the groove is disposed, and first and second fixing parts which extended from both directions of the vibrating part and are electrically connected to the ground. 
     The ground bridge according to various embodiments may include a vibrating part positioned movably in an area in which the groove is disposed, and a fixing part extended in one direction of the vibrating part and fixed on the substrate. 
     The ground bridge according to various embodiments may include a conductive material having elasticity so as to be moveable on a substrate in which the groove is formed. 
       FIG.  5    illustrates a configuration of an electronic device including a switch according to various embodiments. 
     With reference to  FIG.  5   , at least one switch (e.g., the switches  300  and  400  of  FIGS.  3 A and  4 A ) according to various embodiments may be included in an antenna tuner (or antenna matching unit)  530  of an electronic device (e.g., the electronic device  101  of  FIG.  1   ). 
     For example, the electronic device  101  may include an antenna  510 , a processor  520 , an antenna tuner  530 , and a communication module  540 . 
     The antenna  510  may transmit and receive a signal of a designated frequency band. The antenna  510  may include at least one antenna element. A size and shape of the antenna element may be implemented differently according to a resonant frequency. According to an embodiment, the antenna  510  may be formed with an antenna array including a plurality of antenna elements. 
     The antenna tuner  530  may be disposed between the antenna  510  and a front end module  545  of the communication module  540 . The antenna  510  may be connected to the communication module  540  through the antenna tuner  530 . 
     The antenna tuner  530  may perform impedance matching of a radio signal transmitted to the antenna  510 . In an embodiment, the antenna tuner  530  may include a plurality of switches, and a plurality of RF output terminals (e.g., RF 1 ,  532 , RF 2 ,  533 , RG  3 ,  534 , and RF  4 ,  535 ) connected to the antenna. For example, the antenna tuner  530  may include at least one switch of the structure illustrated in  FIG.  3 A or  4 A . A detailed description of the antenna tuner  530  will be described with reference to  FIG.  6   . 
     The antenna tuner  530  may change an RF signal path through an ON/OFF operation of switches included in the antenna tuner  530  under the control of the processor  520 . 
     The communication module  540  may process a radio signal (e.g., RF signal) received through the antenna  510  and transfer the radio signal to the processor  520 , and process the signal transferred from the processor  520  to transfer the signal to the antenna  510 . According to an embodiment, the communication module  540  may include a radio frequency integrated circuit (RFIC), and further include the configuration of the communication module of  FIG.  1   . 
     For example, the communication module  540  may further include a front-end module  545  and/or a transceiver  547   
     The transceiver  547  may transfer the radio signal to the antenna  510  through the front-end module  545  in the form of an electromagnetic wave including a carrier wave, and convert the radio signal received from the antenna  510  to a digital signal that may be processed in the processor  520 , and transfer the digital signal to the processor  520 . 
     The transceiver  547  may include an oscillator for generating a carrier wave, a modulation circuit (not illustrated) for modulating a carrier wave, and a demodulation circuit (not illustrated) for demodulating a radio signal received from the antenna  510 . 
     The front-end module  545  may amplify a signal transferred from the transceiver  547  and transfer the signal to the antenna  510 , amplify the signal received from the antenna  510 , and transfer the amplified signal to the transceiver  547 . For example, the front-end module  545  may include a power amplifier (not illustrated), a low-noise amplifier (LNA) (not illustrated), and/or a filter (not illustrated). 
     The processor  520  may control the overall operation of the electronic device  101  and the signal flow between components (e.g., the antenna  510 , the antenna tuner  530 , and the communication module  540 ) of the electronic device and perform data processing. The processor  520  may include a central processer (CPU), an application processor (AP), and/or a communication processor (CP). The processor  520  may include a single core processor or a multi-core processor. 
     According to an embodiment, the processor  520  may determine a phase and frequency of a wireless signal according to an antenna use environment, and control the communication module  540  to generate a wireless communication band (e.g., baseband) signal. The processor  520  may control the communication module  540  to process a wireless signal received through the antenna. 
     According to an embodiment, the processor  520  may control the antenna tuner  530  to perform impedance matching of a radio signal and adjust a phase of the antenna  510  for impedance compensation. The processor  520  may change an RF signal path through ON/OFF operations of switches included in the antenna tuner  530 . 
     The electronic device  101  according to an embodiment includes at least one switch (e.g., RF switch) of the structure illustrated in  FIG.  3 A or  4 A  in the antenna tuner  530 ; thus, even when a high voltage is applied to the signal line that transmits the RF signal, the switch on/off is controlled through a mechanical movement of the ground bridge horizontally moving and formed on the substrate, and an internal self-actuation phenomenon and self-biasing phenomenon may be suppressed by RF signal lines branched to both sides of the ground bridge. 
       FIG.  6    illustrates a circuit configuration of an antenna tuner according to various embodiments. 
     With reference to  FIG.  6   , an antenna tuner (e.g., an antenna tuner  620  of  FIG.  6   ) according to an embodiment may perform impedance matching using a single pole n-throw (SPnT) switch. 
     For example, the antenna tuner  530  illustrated in  FIG.  5    may be implemented into a single pole 4-throw (SP4T) switch. For example, the SPnT switch may include one common port  531  and four output ports (e.g., RF 1   532 , RF 2   533 , RF 3   534 , and RF 4   535 ). 
     According to an embodiment, the SPnT switch may include switches SW 1 , SW 2 , SW 3 , and SW 4  connected to the common port  531  and switches SW 5 , SW 6 , SW 7 , and SW 8  disposed between RF output ports RF_ 1 , RF_ 2 , RF_ 3 , RF_ 4  and RF signal switches SW 1 , SW 2 , SW 3 , and SW 4 . 
     The processor  520  of the electronic device  101  may control ON/OFF of the switches SW 5 , SW 6 , SW 7 , and SW 8  through a bias control line  536  to selectively output an RF signal applied to the RF common port  531  to at least one selected RF output port of the RF output ports RF 1   532 , RF 2   533 , RF 3   534 , or RF  4   535 . 
     For example, the processor  520  may control an RF signal applied through a common port  531  to be output to a first output port (RF_ 1 )  532  through a first switch (e.g., SW 1 ). In case that the processor  520  turns off a fifth switch SW 5  through a bias control line  536  to shunt a bias voltage applied to the first switch SW 1 , the first switch SW 1  may turn on to control to form an electrical path between the common port  531  and the first output port (RF_ 1 )  532 . In this case, the processor  520  applies a bias voltage to a second switch SW 2 , a third switch SW 3 , or a fourth switch SW 4  to turn off the second switch SW 2 , the third switch SW 3 , or the second switch SW 4 , thereby shunting the RF signal transferred to the second output port (RF_ 2 )  533 , the third output port (RF_ 3 )  534 , and the fourth output port (RF_ 4 )  535 . 
     Various embodiments include a switch of a proposed structure, so that an RF signal is branched and transferred in parallel with a moving structure (e.g., ground bridge) in both directions, thereby suppressing internal self-shaking; thus, it is possible to implement an antenna tuner useful for high voltage and high power without affecting the change in radiation characteristics of the antenna. 
       FIG.  7    illustrates a configuration of an RF module including a switch according to various embodiments. 
     With reference to  FIG.  7   , at least one switch (e.g., switches  300  and  400  illustrated in  FIGS.  3 A and  4 A ) according to various embodiments may be included in an RF module (or front-end module)  701  of the electronic device  101 . 
     According to an embodiment, the RF module  701  may support a two-uplink carrier aggregation (CA) scheme using a first antenna  710  and a second antenna  715 . For example, the RF module  701  may include an antenna switch  720 , a plurality of band filters  730 ,  735 , and  737 , a plurality of transmission and reception switches  740 ,  745 , and  747 , a plurality of power amplifiers (PAs)  750 ,  755 , and  757  and/or a plurality of low noise amplifiers (LANs)  760 ,  765 , and  767 . 
     According to an embodiment, the antenna switch  720  may be connected to the first antenna  710  and the second antenna  715 , and be connected to the plurality of band filters  730 ,  735 , and  737 . The first band filter  730  may be connected to the first transmission and reception switch  740 , the second band filter  735  may be connected to the second transmission and reception switch  745 , and the third band filter  737  may be connected to the third transmission and reception switch  747 . 
     According to an embodiment, the first transmission and reception switch  740  may be connected to the first PA  750  and the first LAN  760 , the second transmission and reception switch  745  may be connected to the second PA  755  and the second LAN  765 , and the third transmission and reception switch  747  may be connected to the third PA  757  and the third LAN  767 . 
     According to an embodiment, the processor  520  of the electronic device  101  may establish an RF reception path or an RF transmission and reception path, and selectively control a connection of the switches  720 ,  740 ,  745 , and  747  according to the RF reception path or the RF transmission and reception path. The switches  720 ,  740 ,  745 , and  747  may be switches for switching whether to connect to an RF signal path. 
     For example, in order to support two-uplinks, the processor  520  may control the first transmission and reception switch  740  and the antenna switch  720  to transfer a first RF signal amplified through the first PA  750  to the antenna  710 , and control the third transmission and reception switch  747  and the antenna switch  720  to transfer a second RF signal amplified through the third PA  757  to the second antenna  715 . 
     According to various embodiments, when a design for preventing mutual interference and distortion between two input signals (e.g., first RF signal and second RF signal) is required to support two-uplinks, by utilizing a switch (e.g., radio frequency (RF) switch) of a proposed structure in an RF module, it is possible to support two-uplinks with high power and no mutual interference. 
     As described herein, various non-limiting embodiments of the present disclosure provide an electronic device according to various embodiments may include a communication module including at least one switch; and a processor, wherein the processor may be configured to control on/off of a wireless communication signal and a bias voltage through the at least one switch, the at least one switch may include a substrate, a first signal line disposed in a first direction to be connected to an input terminal and an output terminal of the wireless communication signal on the substrate, a second signal line to be spaced apart from the first signal line in a first direction in parallel with the first signal line so as to branch the wireless communication signal at a first point L 1  and a second point L 2  of the first signal line on the substrate, a ground bridge disposed to be at least partially movable in a space between the first signal line and the second signal line disposed on the substrate and connected to a ground, a first capacitor formed between a first point of the first signal line and one end of the second signal line, and a second capacitor formed between a second point of the first signal line and the other end of the second signal line. 
     An electronic device (e.g., the electronic device  101  of  FIG.  1   ) according to various embodiments may include a communication module (e.g., the communication module  540  of  FIG.  5   ) including at least one switch (e.g., the switch  300  of  FIG.  3    and the switch  400  of  FIG.  4   ); and a processor (e.g., the processor  520  of  FIG.  5   ), wherein the processor may be configured to control on/off of a wireless communication signal and a bias voltage through the at least one switch, wherein the at least one switch may include a substrate (e.g., the substrate  310  of  FIG.  3   , the substrate  410  of  FIG.  4   ); a first signal line (e.g., the first signal line  320  of  FIG.  3    and the first signal line  420  of  FIG.  4   ) disposed on the substrate in a first direction to be connected to an input terminal and an output terminal of the wireless communication signal; a second signal line (e.g., the second signal line  330  of  FIG.  3   , the second signal line  430  of  FIG.  4   ) disposed on the substrate to be spaced apart from the first signal line in a first direction in parallel with the first signal line so as to branch the wireless communication signal at a first point L 1  and a second point L 2  of the first signal line; a ground bridge (e.g., the ground bridge  340  of  FIG.  3   , the ground bridge  440  of  FIG.  4   ) disposed to be at least partially movable in a space between the first signal line and the second signal line disposed on the substrate and connected to a ground; a first capacitor (e.g., the first capacitor  350  of  FIG.  3   , the first capacitor  450  of  FIG.  4   ) formed between a first point of the first signal line and one end of the second signal line; and a second capacitor (e.g., the second capacitor  355  of  FIG.  3   , the second capacitor  455  of  FIG.  4   ) formed between a second point of the first signal line and the other end of the second signal line. 
     In the electronic device according to various embodiments, at least a portion of the ground bridge may be disposed lower than an outer surface (e.g., an upper surface) of the substrate and be movably disposed through a groove (e.g., the groove  360  of  FIG.  3   , the groove  460  of  FIG.  4   ) having a predetermined length in a first direction, and the groove may be formed in an area of the substrate between the first signal line and the second signal line. 
     According to various embodiments, the wireless communication signal may include a radio frequency signal of 500 MHz or more, and the at least one switch may be included in an antenna tuner or a radio frequency (RF) front-end module of the electronic device. 
     According to various embodiments, the processor may control to apply a bias voltage to the ground bridge and the first signal line so that the ground bridge is in contact with at least a portion of the first signal line by a movement of the ground bridge in a direction of the first signal line to shunt the wireless communication signal transferred through the first signal line and the second signal line. 
     According to various embodiments, the processor may control to shunt a bias voltage applied to the ground bridge and the first signal line to transfer a wireless communication signal input through an input terminal of the first signal line to transfer to the output terminal through the first signal line and the second signal line. 
     According to various embodiments, the first signal line may include a first area implemented with a first width, a second area extended from the first area and implemented with a second width narrower than the first width, and a third area extended from the second area and implemented with the second width, and the second signal line may be disposed with a width matched with the same impedance as that of the second area of the first signal line. 
     According to various embodiments, the ground bridge disposed in a space between the first signal line and the second signal line may be disposed to be spaced apart from each other at the same distance with respect to each of the first signal line and the second signal line. 
     According to various embodiments, the ground bridge may include a vibrating part positioned movably in an area in which the groove is disposed, and first and second fixing parts extended from both directions of the vibrating part and disposed on the substrate. 
     According to various embodiments, the ground bridge may include a vibrating part positioned movably in an area in which the groove is disposed, and a fixing part extended in one direction of the vibrating part and fixed on the substrate. 
     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. 
     Various embodiments as set forth herein may be implemented as software (e.g., the program  140 ) including one or more instructions that are stored in a storage medium (e.g., internal memory  136  or external memory  138 ) that is readable by a machine (e.g., the electronic device  101 ). For example, a processor (e.g., the processor  120 ) of the machine (e.g., the electronic device #01) may invoke at least one of the one or more instructions stored in the storage medium, and execute it, with or without using one or more other components under the control of the processor. This allows the machine to be operated to perform at least one function according to the at least one instruction invoked. The one or more instructions may include a code generated by a complier or a code executable by an interpreter. The machine-readable storage medium may be provided in the form of a non-transitory storage medium. Wherein, the term “non-transitory” simply means that the storage medium is a tangible device, and does not include a signal (e.g., an electromagnetic wave), but this term does not differentiate between where data is semi-permanently stored in the storage medium and where the data is temporarily stored in the storage medium. 
     According to an embodiment, a method according to various embodiments of the disclosure may be included and provided in a computer program product. The computer program product may be traded as a product between a seller and a buyer. The computer program product may be distributed in the form of a machine-readable storage medium (e.g., compact disc read only memory (CD-ROM)), or be distributed (e.g., downloaded or uploaded) online via an application store (e.g., PlayStore™), or between two user devices (e.g., smart phones) directly. If distributed online, at least part of the computer program product may be temporarily generated or at least temporarily stored in the machine-readable storage medium, such as memory of the manufacturer&#39;s server, a server of the application store, or a relay server. 
     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.