Antenna and electronic device including the same

An electronic device is provided. The electronic device includes a foldable housing, a flexible display, at least one printed circuit board (PCB), and a wireless communication circuit. The foldable housing includes a hinge structure, a first housing structure connected to the hinge structure and including a first surface facing in a first direction, a second surface facing in a direction opposite to the first direction, and a first lateral member surrounding a first space between the first surface and the second surface, and a second housing structure connected to the hinge structure and including a third surface facing in a second direction, a fourth surface facing in a direction opposite to the second direction, and a second lateral member surrounding a second space between the third surface and the fourth surface.

CROSS-REFERENCE TO RELATED APPLICATION(S)

This application is based on and claims priority under 35 U.S.C. 119(a) of a Korean patent application number 10-2018-0127259, filed on Oct. 24, 2018, in the Korean Intellectual Property Office, the disclosure of which is incorporated by reference herein in its entirety.

BACKGROUND

The disclosure relates to an antenna and an electronic device including the antenna.

2. Description of Related Art

With the growth of electronic communication technology, electronic devices having various functions and shapes have emerged. Such electronic devices generally have a convergence function that performs several functions in combination.

Some of recent electronic devices use a conductive member (e.g., a metal frame or metal bezel) to satisfy consumer needs and increase their rigidity. In case of a communication electronic device, at least a part of the conductive member is used as an antenna.

When the exterior of the electronic device is formed of such a conductive member, at least a part of the conductive member may be utilized as an antenna in order to meet a slimming trend of electronic devices. For example, when the conductive member used as a lateral member of the electronic device is utilized as the antenna, the conductive member is divided into segments and a non-conductive dielectric material fills a gap between the segments to electrically isolate a certain portion of the conductive member. By doing so, the electrical length of the antenna from a feeder can be adjusted, and therefore the antenna can be operated in a desired frequency band.

Meanwhile, the electronic device may be of a foldable type such that a pair of housing structures can be foldable with respect to each other through a hinge structure formed of a conductive material. If the antenna of the foldable electronic device is disposed near the conductive hinge structure, it is difficult to match a desired operating frequency band. Further, this may cause a shift of the operating frequency band.

SUMMARY

Aspects of the disclosure are to address at least the above-mentioned problems and/or disadvantages and to provide at least the advantages described below. Accordingly, an aspect of the disclosure is to provide an antenna and a foldable electronic device including the antenna.

In accordance with an aspect of the disclosure, an antenna capable of exhibiting a specified radiation performance by using a conductive portion included in an electronic device is provided.

According to another aspect of the disclosure, an electronic device is provided. The electronic device includes a foldable housing, a flexible display, at least one printed circuit board (PCB), and a wireless communication circuit. The foldable housing includes a hinge structure, a first housing structure connected to the hinge structure and including a first surface facing in a first direction, a second surface facing in a direction opposite to the first direction, and a first lateral member surrounding a first space between the first surface and the second surface, and a second housing structure connected to the hinge structure and including a third surface facing in a second direction, a fourth surface facing in a direction opposite to the second direction, and a second lateral member surrounding a second space between the third surface and the fourth surface. The first lateral member includes a first conductive portion extending along the hinge structure, a second conductive portion extending substantially perpendicular to the first conductive portion, a third conductive portion extending substantially parallel to the first conductive portion, a first non-conductive portion connected between the first and second conductive portions, and a second non-conductive portion connected between the second and third conductive portions. The first and second housing structures are foldable along the hinge structure such that the first surface faces the third surface in a folded state and the second direction is equal to the first direction in an unfolded state. The flexible display includes a first conductive layer that extends from the first surface to the third surface. The at least one PCB is disposed in the first space and includes a second conductive layer forming an annular path together with a part of the first conductive portion, the first non-conductive portion, and a part of the second conductive portion. The wireless communication circuit is disposed on the at least one PCB and electrically connected to a first point of the first conductive portion on the annular path and to a second point of the second conductive portion outside the annular path.

According to another aspect of the disclosure, an electronic device is provided. The electronic device includes a foldable housing, a display, at least one printed circuit board (PCB), a wireless communication circuit, a switching element, and at least one processor. The foldable housing includes a conductive hinge structure, a first housing structure connected to the hinge structure and including a first surface facing in a first direction, a second surface facing in a direction opposite to the first direction, and a first lateral member surrounding a first space between the first surface and the second surface, and a second housing structure connected to the hinge structure and including a third surface facing in a second direction, a fourth surface facing in a direction opposite to the second direction, and a second lateral member surrounding a second space between the third surface and the fourth surface. The first lateral member includes a first conductive portion extending along the hinge structure at least in part, a second conductive portion extending from the first conductive portion, a third conductive portion extending from the second conductive portion, a first non-conductive portion connected between the first and second conductive portions, and a second non-conductive portion connected between the second and third conductive portions. The first and second housing structures are foldable such that the first surface faces the third surface in a folded state and the second direction is equal to the first direction in an unfolded state. The display extends from at least a part of the first surface to at least a part of the third surface. The at least one PCB is disposed in the first space and includes a conductive layer forming an annular path together with a part of the first conductive portion, the first non-conductive portion, and a part of the second conductive portion. The wireless communication circuit is disposed on the at least one PCB and electrically connected to a first point of the first conductive portion on the annular path and to a second point of the second conductive portion outside the annular path. The switching element is disposed on the PCB and selectively and electrically connected between the conductive layer and a third point of the second conductive portion so as to selectively form the annular path. The at least one processor controls the switching element to selectively determine the annular path according to state information of the electronic device.

DETAILED DESCRIPTION

Referring toFIG.1, in a network environment100, an electronic device101may communicate with a first external electronic device102through a first network198(e.g., short-range wireless communication network) or may communicate with a second external electronic device104or a server108through a second network199(e.g., long-distance wireless communication network). In one embodiment, the electronic device101may communicate with the second external electronic device104through the server108. According to an embodiment, the electronic device101may include a processor120, a memory130, an input unit150, a sound output unit155, a display unit160, an audio module170, a sensor module176, an interface177, a haptic module179, a camera module180, a power management module188, a battery189, a communication module190, a subscriber identification module196, and an antenna module197. In one embodiment, at least one component (e.g., the display unit160or the camera module180) among the components of the electronic device101may be omitted, or other components may be added to the electronic device101. In one embodiment, some of these components may be implemented as an integrated circuit. For example, the sensor module176(e.g., fingerprint sensor, iris sensor, or illuminance sensor) may be embedded in the display unit160(e.g., display).

The processor120may execute, for example, software (e.g., a program140) to control at least one of other components (e.g., hardware component or software component) of the electronic device101connected to the processor120, and may process a variety of data or perform various computations. In one embodiment, as part of data processing or computation, the processor120may load a command or data received from other components (e.g., the sensor module176or the communication module190) into the volatile memory132, process the command or data stored in the volatile memory132, and store the result data in nonvolatile memory134. In one embodiment, the processor120may include a main processor121(e.g., central processing unit, or application processor), and a secondary processor123(e.g., graphics processing unit, image signal processor, sensor hub processor, or communication processor), which may operate independently of or in cooperation with the main processor121. Additionally or alternatively, the secondary processor123may consume less power or may be more specialized in a specific function compared with the main processor121. The secondary processor123may be implemented separately from or as part of the main processor121.

The secondary processor123may control at least some of the functions or states associated with at least one component (e.g., the display unit160, the sensor module176, or the communication module190) among the components of the electronic device101, for example, instead of the main processor121while the main processor121is in an inactive (e.g., sleep) state, or together with the main processor121while the main processor121is in an active (e.g., application execution) state. In one embodiment, the secondary processor123(e.g., image signal processor or communication processor) may be implemented as a part of another component (e.g., the camera module180or the communication module190) that is functionally related to the secondary processor123.

The memory130may store a variety of data used by at least one component (e.g., the processor120or the sensor module176) of the electronic device101. The data may include, for example, software (e.g., the program140) and input data or output data for commands associated with the software. The memory130may include the volatile memory132or the nonvolatile memory134.

The programs140may be stored in the memory130as software, and may include, for example, an operating system142, a middleware144, or an application146.

The input unit150may receive a command or data, which can be to be used for a component (e.g., the processor120) of the electronic device101, from the outside of the electronic device101(e.g., user). The input unit150may include, for example, a microphone, a mouse, a keyboard, or a digital pen (e.g., stylus pen).

The sound output unit155may output a sound signal to the outside of the electronic device101. The sound output unit155may include, for example, a speaker and a receiver. The speaker may be used for general purposes, such as playback of multimedia or recordings, and the receiver may be used for receiving an incoming call. In one embodiment, the receiver may be implemented separately from or as part of the speaker.

The display unit160may visually present information to the outside of the electronic device101(e.g., user). The display unit160may include, for example, a display, a hologram device, or a projector, and a control circuit for controlling these. In one embodiment, the display unit160may include a touch circuitry configured to sense a touch, or a sensing circuitry (e.g., pressure sensor) configured to measure the strength of a force caused by a touch action.

The audio module170may convert a sound into an electric signal or convert an electric signal into a sound. In one embodiment, the audio module170may obtain a sound signal through the input unit150or may output a sound signal through an external electronic device (e.g., the first external electronic device102(e.g., speaker or headphone)) wiredly or wirelessly connected to the sound output unit155or the electronic device101.

The sensor module176may generate an electrical signal or a data value corresponding to the operating state (e.g., power or temperature) of the electronic device101or the environmental state (e.g., user state) outside the electronic device101. The sensor module176may include, for example, a gesture sensor, a gyro sensor, a barometric pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a proximity sensor, a color sensor, an infrared sensor, a biometric sensor, a temperature sensor, a humidity sensor, or an illuminance sensor.

The interface177may support one or more designated protocols that enable the electronic device101to directly or wirelessly connect to an external electronic device (e.g., the first external electronic device102). In one embodiment, the interface177may include, for example, a high-definition multimedia interface (HDMI), a universal serial bus (USB) interface, an SD card interface, or an audio interface.

The connection terminal178may include a connector through which the electronic device101can be physically connected to an external electronic device (e.g., the first external electronic device102). In one embodiment, the connection terminal178may include, for example, an HDMI connector, a USB connector, a secure digital (SD) card connector, or an audio connector (e.g., headphone connector).

The haptic module179may convert an electrical signal into a mechanical stimulus (e.g., vibration or motion) or an electrical stimulus that can be perceived by the user through tactile or kinesthetic senses. In one embodiment, the haptic module179may include, for example, a motor, a piezoelectric element, or an electric stimulator.

The camera module180may capture a still image or a moving image. In one embodiment, the camera module180may include at least one lens, an image sensor, an image signal processor, or a flash.

The power management module188may manage the power supplied to the electronic device101. The power management module188may be implemented as part of a power management integrated circuit (PMIC).

The battery189may supply power to at least one component of the electronic device101. In one embodiment, the battery189may include, for example, a non-rechargeable primary cell, a rechargeable secondary cell, or a fuel cell.

The communication module190may establish a wired or wireless communication channel between the electronic device101and the external electronic device (e.g., the first external electronic device102, the second external electronic device104, or the server108) and support communication through the established communication channel. The communication module190may include at least one communication processor that can operate separately from the processor120(e.g., application processor) to support wired or wireless communication. In one embodiment, the communication module190may include a wireless communication module192(e.g., cellular communication module, short-range wireless communication module, or global navigation satellite system (GNSS) communication module), or a wired communication module194(e.g., local area network (LAN) communication module, or power line communication module). The corresponding communication module may communicate with an external electronic device through the first network198(e.g., short-range communication network such as Bluetooth, Wi-Fi direct, or infrared data association (IrDA)) or through the second network199(e.g., long-distance communication network such as a cellular network, the Internet, or a computer network like a LAN or WAN). The above various communication modules may be implemented as one component (e.g., single chip) or as separate components (e.g., multiple chips). The wireless communication module192may identify and authenticate the electronic device101in the communication network such as the first network198or the second network199by using subscriber information stored in the subscriber identification module196.

The antenna module197may transmit or receive a signal or power to or from the outside (e.g., the external electronic devices102or104). In one embodiment, the antenna module197may include one antenna having a radiator made of a conductor or conductive pattern formed on a substrate (e.g., PCB). In one embodiment, the antenna module197may include a plurality of antennas. In this case, at least one antenna suitable for the communication scheme used in the communication network such as the first network198or the second network199may be selected from the plurality of antennas by, for example, the communication module190. The signal or power may be transmitted or received between the communication module190and the external electronic devices102or104through the selected at least one antenna. In one embodiment, in addition to the radiator, another component (e.g., radio frequency integrated circuit (RFIC)) may be further formed as part of the antenna module197.

At least some of the above components may be connected to each other via a communication scheme between peripherals (e.g., bus, general purpose input and output (GPIO), serial peripheral interface (SPI), or mobile industry processor interface (MIPI)), and may exchange signals (e.g., commands or data) with each other.

In one embodiment, commands or data may be exchanged between the electronic device101and the second external electronic device104through the server108connected to the second network199. The external electronic devices102and104may be of the same type as or a different type from the electronic device101. In one embodiment, all or some of the operations that can be performed by the electronic device101may be performed by one or more of the external electronic devices102,104and108. For example, to perform a certain function or service automatically or upon request, the electronic device101may, instead of or in addition to executing the function or service, request one or more external electronic devices to execute at least some of the function or service. Upon reception of the request, the external electronic devices may execute at least a portion of the requested function or service or an additional function or service related to the request, and return the execution results to the electronic device101. The electronic device101may further process the received results if necessary and provide the processing results as a response to the requested function or service. To this end, technologies such as cloud computing, distributed computing, and client-server computing may be used.

The electronic device according to various embodiments disclosed herein can be one of various types of devices, such as portable communication devices (e.g., smartphones), computers, portable multimedia devices, portable medical instruments, cameras, wearable devices, and home appliances. However, the electronic device is not limited to the above-mentioned devices.

It should be understood that the various embodiments of the disclosure and the terminology used herein are not intended to limit the techniques described herein to specific embodiments but to include various modifications, equivalents, and/or alternatives thereof. In the drawings, the same or similar reference symbols are used to refer to the same or like parts. In the description, the singular forms “a”, “an” and “the” are intended to include the plural forms as well, unless the context clearly indicates otherwise. In the description, the expression “A or B”, “at least one of A and/or B”, “A, B or C”, or “at least one of A, B and/or C” may indicate all possible combinations of the listed items. The terms “first” and “second” may refer to various elements regardless of importance and/or order and are used to distinguish one element from another element without limitation. It will be understood that when an element (e.g., first element) is referred to as being (functionally or communicatively) “coupled with/to” or “connected with/to” another element (e.g., second element), it can be coupled or connected with/to the other element directly (wiredly), wirelessly, or via a third element.

In the description, the term “module” may refer to a certain unit that is implemented in hardware, software, firmware, or a combination thereof. The term “module” may be used interchangeably with the term “unit”, “logic”, “logical block”, “component”, or “circuit”, for example. The module may be the minimum unit, or a part thereof, which performs one or more particular functions. For example, a module may be implemented in the form of an application-specific integrated circuit (ASIC).

Various embodiments of the disclosure may be implemented in software (e.g., the programs140) including instructions stored in a machine-readable storage medium (e.g., internal memory136or external memory138) readable by a machine (e.g., the electronic device101). For example, the processor (e.g., the processor120) of the machine (e.g., the electronic device101) can fetch a stored instruction from a storage medium and execute the fetched instruction. When the instruction is executed by the processor, the machine may perform the function corresponding to the instruction. The instructions may include a code generated by a compiler and a code executable by an interpreter. The machine-readable storage medium may be provided in the form of a non-transitory storage medium. Here, “non-transitory” means that the storage medium does not include a signal and is tangible, but does not distinguish whether data is stored semi-permanently or temporarily in the storage medium.

The method according to various embodiments disclosed herein may be provided as a computer program product. A computer program product may be traded between a seller and a purchaser as a commodity. A 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 online (e.g., download or upload) directly between two user devices (e.g. smartphones) through an application store (e.g., PlayStore™). For on-line distribution, at least a portion of the computer program product may be temporarily stored or temporarily created in a storage medium such as a memory of a manufacturer's server, an application store's server, or a relay server.

Each of the components (e.g., modules or programs) according to various embodiments described above may be composed of one or more elements. An existing component may be omitted, and a new component may be added. Alternatively or additionally, some of the components (e.g., modules or programs) may be combined into one entity while maintaining the same functionality. Operations supported by a module, program, or another component may be carried out in sequence, in parallel, by repetition, or heuristically. Some operations may be executed in a different order or may be omitted, and a new operation may be added.

FIG.2Ais a view illustrating an electronic device in a flat state according to an embodiment of the disclosure.

FIG.2Bis a view illustrating an electronic device in a folded state according to an embodiment of the disclosure.

Embodiments for an electronic device ofFIGS.2A and2Bmay be at least partially similar to or different from those for the electronic device101ofFIG.1.

Referring toFIG.2A, an electronic device200may include a pair of housing structures210and220rotatably coupled via a hinge structure (e.g., hinge structure264inFIG.3) to be folded relative to each other, a hinge cover265covering the foldable portion of the pair of housing structures210and220, and a display230(e.g., flexible display or foldable display) disposed in the space formed by the pair of housing structures210and220. In the description, the surface on which the display230is disposed may be referred to as the front surface of the electronic device200, and the opposite side of the front surface may be referred to as the rear surface of the electronic device200. The surface surrounding the space between the front surface and the rear surface may be referred to as the side surface of the electronic device200.

In one embodiment, the pair of housing structures210and220may include a first housing structure210including a sensor region231d, a second housing structure220, a first rear cover240, and a second rear cover250. The pair of housing structures210and220of the electronic device200are not limited to the shape or combination illustrated inFIGS.2A and2B, but may be implemented in various shapes or combinations. For example, in another embodiment, the first housing structure210and the first rear cover240may be formed as a single body, and the second housing structure220and the second rear cover250may be formed as a single body.

In one embodiment, the first housing structure210and the second housing structure220may be disposed at both sides with respect to the folding axis (A) and may be substantially symmetrical with respect to the folding axis (A). In one embodiment, the angle or distance between the first housing structure210and the second housing structure220may vary depending upon whether the electronic device200is in the flat state or closed state, the folded state, or the intermediate state. In one embodiment, the first housing structure210includes the sensor region231dwhere various sensors are disposed, but may have a symmetrical shape with the second housing structure220in other regions. In another embodiment, the sensor region231dmay be disposed in a specific region of the second housing structure220or may be replaced.

In one embodiment, during the flat state of the electronic device200, the first housing structure210may be connected to the hinge structure (e.g., hinge structure264inFIG.3), and may include a first surface211facing the front surface of the electronic device200, a second surface212facing away from the first surface211, and a first side member213enclosing at least a portion of the space between the first surface211and the second surface212. In one embodiment, the first side member213may include a first side surface213adisposed in parallel with the folding axis (A), a second side surface213bextending from one end of the first side surface213ain a direction perpendicular to the folding axis, and a third side surface213cextending from the other end of the first side surface213ain a direction perpendicular to the folding axis.

In one embodiment, during the flat state of the electronic device200, the second housing structure220may be connected to the hinge structure (e.g., hinge structure264inFIG.3), and may include a third surface221facing the front surface of the electronic device200, a fourth surface222facing away from the third surface221, and a second side member223enclosing at least a portion of the space between the third surface221and the fourth surface222. In one embodiment, the second side member223may include a fourth side surface223adisposed in parallel with the folding axis (A), a fifth side surface223bextending from one end of the fourth side surface223ain a direction perpendicular to the folding axis, and a sixth side surface223cextending from the other end of the fourth side surface223ain a direction perpendicular to the folding axis. In one embodiment, the third surface221may face the first surface211in the folded state.

In one embodiment, the electronic device200may include a recess201formed to accommodate the display230through a structural combination of the shapes of the first housing structure210and the second housing structure220. The recess201may have substantially the same size as the display230. In one embodiment, the recess201may have two or more different widths in a direction perpendicular to the folding axis (A) due to the sensor region231d. For example, the recess201may have a first width (W1) between a first portion220aof the second housing structure220parallel to the folding axis (A) and a first portion210aof the first housing structure210formed at the edge of the sensor region231d, and have a second width (W2) between a second portion220bof the second housing structure220and a second portion210bof the first housing structure210that does not correspond to the sensor region213dand is parallel to the folding axis (A). Here, the second width (W2) may be wider than the first width (W1). In other words, the recess201may be formed to have the first width (W1) ranging from the first portion210aof the first housing structure210to the first portion220aof the second housing structure220(asymmetric shape), and the second width (W2) ranging from the second portion210bof the first housing structure210to the second portion220bof the second housing structure220(symmetric shape). In one embodiment, the first portion210aand the second portion210bof the first housing structure210may be located at different distances from the folding axis (A). The width of the recess201is not limited to the example shown above. In various embodiments, the recess201may have two or more different widths owing to the shape of the sensor region213dor the asymmetry of the first housing structure210or the second housing structure220.

In one embodiment, at least a portion of the first housing structure210and the second housing structure220may be made of a metal or non-metal material having a rigidity value selected to support the display230.

In one embodiment, the sensor region231dmay be formed to have a preset area near to one corner of the first housing structure210. However, the arrangement, shape, or size of the sensor region231dis not limited to the illustrated example. For example, in a certain embodiment, the sensor region231dmay be formed at another corner of the first housing structure210or in any region between the upper corner and the lower corner. In another embodiment, the sensor region231dmay be disposed at a portion of the second housing structure220. In another embodiment, the sensor region231dmay be formed to extend between the first housing structure210and the second housing structure220. In one embodiment, to perform various functions, the electronic device200may include components exposed to the front surface of the electronic device200through the sensor region213dor through one or more openings provided in the sensor region231d. The components may include, for example, at least one of a front camera, a receiver, a proximity sensor, an illuminance sensor, an iris recognition sensor, an ultrasonic sensor, or an indicator.

In one embodiment, the first rear cover240may be disposed on the second surface212of the first housing structure210and may have a substantially rectangular periphery. In one embodiment, at least a portion of the periphery may be wrapped by the first housing structure210. Similarly, the second rear cover250may be disposed on the fourth surface222of the second housing structure220, and at least a portion of the periphery thereof may be wrapped by the second housing structure220.

In the illustrated embodiment, the first rear cover240and the second rear cover250may have a substantially symmetrical shape with respect to the folding axis (A). In another embodiment, the first rear cover240and the second rear cover250may have various different shapes. In another embodiment, the first rear cover240may be formed as a single body with the first housing structure210, and the second rear cover250may be formed as a single body with the second housing structure220.

In one embodiment, the first rear cover240, the second rear cover250, the first housing structure210, and the second housing structure220may be combined with each other so as to provide a space where various components (e.g., printed circuit board, antenna module, sensor module, and battery) of the electronic device200can be arranged. In one embodiment, one or more components may be disposed on or visually exposed via the rear surface of the electronic device200. For example, one or more components or sensors may be visually exposed through the first rear region241of the first rear cover240. The sensors may include a proximity sensor, a rear camera, and/or a flash. In another embodiment, at least a portion of the sub-display252may be visually exposed through the second rear region251of the second rear cover250.

The electronic device200may be disposed on the space formed by the pair of housing structures210and220. For example, the electronic device200may be seated in the recess (e.g., recess201inFIG.2A) formed by the pair of housing structures210and220, and may be disposed to substantially occupy most of the front surface of the electronic device200. Hence, the front surface of the electronic device200may include the display230, a portion (e.g., edge region) of the first housing structure210close to the display230, and a portion (e.g. edge region) of the second housing structure220close to the display230. In one embodiment, the rear surface of the electronic device200may include the first rear cover240, a portion (e.g., edge region) of the first housing structure210close to the first rear cover240, the second rear cover250, and a portion (e.g. edge region) of the second housing structure220close to the second rear cover250.

In one embodiment, the display230may refer to a display whose at least a portion may be deformed into a flat or curved surface. In one embodiment, the display230may include a folding region231c, a first region231adisposed on one side (e.g., right side of the folding region231c) with respect to the folding region231c, and a second region231bdisposed on the other side (e.g., left side of the folding region231c). For example, the first region231amay be disposed on the first surface211of the first housing structure210, and the second region231bmay be disposed on the third surface221of the second housing structure220. This demarcation of the display230is only an example, and the display230may be subdivided into plural regions (e.g., four or more regions) according to the structure or functionality. For example, in the embodiment ofFIG.2A, the area of the display230may be subdivided with respect to the folding region231cor the folding axis (A) extending parallel to the y-axis. However, in another embodiment, the area of the display230may be subdivided with respect to a different folding region (e.g., folding region parallel to the x-axis) or a different folding axis (e.g., folding axis parallel to the x-axis). The aforementioned subdivision of the display is only a physical demarcation based on the pair of housing structures210and220and the hinge structure (e.g., hinge structure264inFIG.3), and the display230may substantially present one full screen through the pair of housing structures210and220and the hinge structure (e.g., hinge structure264inFIG.3). In one embodiment, the first region231aand the second region231bmay have a symmetrical shape with respect to the folding region231c. Although the first region231amay include a notch region (e.g., notch region233inFIG.3) cut according to the presence of the sensor region231d, it may have a symmetrical shape with the second region231bin other portions. In other words, the first region231aand the second region231bmay include portions with symmetrical shapes and portions with asymmetrical shapes.

Referring toFIG.2B, the hinge cover265may be disposed between the first housing structure210and the second housing structure220so as to cover the internal components (e.g., hinge structure264inFIG.3). In one embodiment, the hinge cover265may be covered by portions of the first housing structure210and the second housing structure220or be exposed to the outside according to the operating state (e.g., flat state or folded state) of the electronic device200.

For example, when the electronic device200is in the flat state as illustrated inFIG.2A, the hinge cover265may be covered by the first housing structure210and the second housing structure220so as not to be exposed. When the electronic device200is in the folded state (e.g., completely folded state) as illustrated inFIG.2B, the hinge cover265may be exposed to the outside between the first housing structure210and the second housing structure220. When the electronic device200is in the intermediate state where the first housing structure210and the second housing structure220make a certain angle, the hinge cover265may be partially exposed to the outside between the first housing structure210and the second housing structure220. In this case, the exposed portion may be less than that for the fully folded state. In one embodiment, the hinge cover265may include a curved surface.

Next, a description is given of configurations of the first housing structure210and the second housing structure220and regions of the display230according to the operating state (e.g. flat state or folded state) of the electronic device200.

In one embodiment, when the electronic device200is in the flat state (e.g., state ofFIG.2A), the first housing structure210and the second housing structure220may make an angle of 180 degrees, and the first region231aand the second region231bof the display may be disposed to face in the same direction. In addition, the folding region231cmay be coplanar with the first region231aand the second region231b.

In one embodiment, when the electronic device200is in the folded state (e.g., state ofFIG.2B), the first housing structure210and the second housing structure220may be disposed to face each other. The first region231aand the second region231bof the display230may face each other, making a narrow angle (e.g., between 0 degrees and 10 degrees). At least a portion of the folding region231cmay form a curved surface with a preset curvature.

In one embodiment, when the electronic device200is in the intermediate state, the first housing structure210and the second housing structure220may be disposed to make a certain angle. The first region231aand the second region231bof the display230may form an angle greater than that for the folded state and less than that for the flat state. At least a portion of the folding region231cmay form a curved surface with a preset curvature. This curvature may be less than that for the folded state.

FIG.3is an exploded perspective view of an electronic device according to an embodiment of the disclosure.

Referring toFIG.3, in one embodiment, the electronic device200may include a display230, a support member assembly260, at least one printed circuit board270, a first housing structure210, a second housing structure220, a first rear cover240, and a second rear cover250. In the description, the display230may be referred to as a display unit, display module, or display assembly.

The display230may include a display panel231(e.g., flexible display panel), and at least one plate232or layer on which the display panel231is seated. In one embodiment, the plate232may be disposed between the display panel231and the support member assembly260. The display panel231may be disposed on at least a portion of one surface (e.g., surface in the Z direction inFIG.3) of the plate232. The plate232may be formed in a shape corresponding to the display panel231. For example, a portion of the plate232may be formed in a shape corresponding to the notch region233of the display panel231.

The support member assembly260may include a first support member261, a second support member262, a hinge structure264disposed between the first support member261and the second support member262, a hinge cover265to cover the hinge structure264when viewed from the outside, and a wiring member263(e.g., flexible printed circuit board (FPCB)) that crosses the first support member261and the second support member262.

In one embodiment, the support member assembly260may be disposed between the plate232and at least one printed circuit board270. For example, the first support member261may be disposed between the first region231aof the display230and the first printed circuit board271. The second support member262may be disposed between the second region231bof the display230and the second printed circuit board272.

In one embodiment, at least a portion of the wiring member263and the hinge structure264may be disposed within the support member assembly260. The wiring member263may be disposed in a direction crossing the first support member261and the second support member262(e.g., x-axis direction). The wiring member263may be disposed in a direction (e.g., x-axis direction) perpendicular to the folding axis (e.g., y-axis or folding axis (A) inFIG.2) of the folding region231c.

The at least one printed circuit board270may include, as described above, the first printed circuit board271disposed on the side of the first support member261, and the second printed circuit board272disposed on the side of the second support member262. The first printed circuit board271and the second printed circuit board272may be disposed inside the space formed by the support member assembly260, the first housing structure210, the second housing structure220, the first rear cover240, and the second rear cover250. Various components for implementing functions of the electronic device200may be mounted on the first printed circuit board271and the second printed circuit board272.

In one embodiment, in a state where the display230is coupled to the support member assembly260, the first housing structure210and the second housing structure220may be assembled to each other so as to be coupled to both sides of the support member assembly260. As described below, the first housing structure210and the second housing structure220may be coupled to the support member assembly260by being slid on both sides of the support member assembly260.

In one embodiment, the first housing structure210may include a first rotary support surface214, and the second housing structure220may include a second rotary support surface224corresponding to the first rotary support surface214. The first rotary support surface214and the second rotary support surface224may include a curved surface corresponding to the curved surface included in the hinge cover265.

In one embodiment, when the electronic device200is in the flat state (e.g., state ofFIG.2A), the first rotary support surface214and the second rotary support surface224may cover the hinge cover265so that the hinge cover265may be not or minimally exposed to the rear surface of the electronic device200. When the electronic device200is in the folded state (e.g., state ofFIG.2B), the first rotary support surface214and the second rotary support surface224may rotate along the curved surface included in the hinge cover265so that the hinge cover265may be maximally exposed to the rear surface of the electronic device200.

According to various embodiments of the disclosure, even when a conductive hinge structure is applied, it is possible to realize an excellent antenna performance and a shift to a designated frequency band by using at least a portion of the hinge structure. Hereinafter, the antenna will be described in detail.

FIG.4is a view illustrating an electronic device including a segment structure according to an embodiment of the disclosure.

The electronic device ofFIG.4may be similar, at least in part, to the electronic device101ofFIG.1or the electronic device200ofFIGS.2A to3, or may include other embodiments of the electronic device.

Referring toFIG.4, an electronic device400may include foldable housing structures410and420rotatably disposed with respect to a folding axis (A). In an embodiment, the foldable housing structures may include a first housing structure410and a second housing structure420. In an embodiment, the first housing structure410and the second housing structure420may be rotatably connected through a hinge structure460(e.g., the hinge structure264inFIG.3). For example, the first housing structure410and the second housing structure420may be folded to face each other about the folding axis (A) through the hinge structure460or be unfolded to have the same plane.

According to various embodiments, the first housing structure410may include a first surface411facing in a first direction (e.g., a positive direction of the Z-axis inFIG.3), a second surface412facing in a direction (e.g., a negative direction of the Z-axis inFIG.3) opposite to the first direction, and a first lateral member413surrounding, at least in part, a first space (e.g., a first space4130inFIG.5) between the first surface411and the second surface412. In an embodiment, at least a part of the first lateral member413may be formed of a conductive material (e.g., a metallic material).

According to various embodiments, the first lateral member413may include a first conductive portion4131extending along the hinge structure460, a second conductive portion4132extending substantially perpendicular to the first conductive portion4131, a third conductive portion4133extending substantially parallel to the first conductive portion4131, a first non-conductive portion connected between the first and second conductive portions4131and4132, and a second non-conductive portion4135connected between the second and third conductive portions4132and4133. In an embodiment, the first conductive portion4131generally extends along the hinge structure460, but at least a part of the first conductive portion4131may extend in a direction parallel to the second conductive portion4132. In an embodiment, the third conductive portion4133generally extends parallel to the first conductive portion4131, but at least a part of the third conductive portion4133may extend in a direction parallel to the second conductive portion4132. In an embodiment, the first and second non-conductive portions4134and4135are formed of an insulating material, and the second conductive portion4132forming a unit segment is electrically isolated from the other portions of the first lateral member413. In an embodiment, at least a part of the first conductive portion4131may be in physical contact with the hinge structure460formed of a conductive material, thereby maintaining an electrically connected state.

According to various embodiments, the second housing structure420may include a third surface421facing in a second direction (e.g., a positive direction of the Z-axis inFIG.3), a fourth surface422facing in a direction (e.g., a negative direction of the Z-axis inFIG.3) opposite to the second direction, and a second lateral member423surrounding, at least in part, a second space between the third surface421and the fourth surface422. In an embodiment, at least a part of the second lateral member423may be formed of a conductive material. In an embodiment, the second lateral member423may include a third non-conductive portion4234and a fourth non-conductive portion4235which are disposed to face the first and second non-conductive portions4134and4135of the first housing structure410, respectively, when the first and second housing structures410and420are folded.

According to various embodiments, when the first and second housing structures410and420are unfolded to form an angle of 180 degrees, the first surface411and the third surface421may face the same direction (e.g., the positive direction of the Z-axis inFIG.3) and thus form a planar structure. In an embodiment, the electronic device400may include a flexible display (i.e., display430) that includes a first conductive layer (e.g., a conductive plate or a Cu plate) disposed to cross the first surface411of the first housing structure410and the third surface421of the second housing structure420. When the first surface411of the first housing structure410and the third surface421of the second housing structure420are folded to face each other, the flexible display (i.e., display430) may also be folded to face each other about the folding axis (A). In an embodiment, at least a part of the first surface411of the first housing structure410may not include the display430such that a sensor area435can be disposed. In another embodiment, the sensor area435may be disposed in at least a part of the third surface421of the second housing structure420or disposed in both the first and third surfaces411and421.

According to various embodiments, the electronic device400may include a pair of antennas A1and A2formed using an upper region of the first lateral member413of the first housing structure410. In an embodiment, the first antenna A1may be formed using at least a part of the first conductive portion4131electrically connected to the hinge structure460. In an embodiment, the second antenna A2may be formed using at least a part of the second conductive portion4132. In an embodiment, the first antenna A1may operate in a frequency band relatively higher than that of the second antenna A2.

According to various embodiments, the first antenna A1may operate as a slot antenna using an annular path (e.g., an annular path (AP) inFIG.5) formed by the hinge structure460electrically connected to the first conductive portion4131, peripheral conductors (e.g., a part of the first conductive portion4131), the first non-conductive portion4134, the second conductive portion4132, and a conductive layer (e.g., a second conductive layer481inFIG.5) of a printed circuit board (e.g., a printed circuit board480inFIG.5). In an embodiment, the first antenna A1can prevent the radiation performance from being degraded because of using the conductive hinge structure460as a part of the antenna, and may be formed to shift the operating frequency to a desired band by selecting the presence or absence of a slot.

FIG.5Ais a view showing an arrangement relationship of antennas in an electronic device according to an embodiment of the disclosure.

FIG.5Bis a view schematically illustrating a structure of a first antenna according to an embodiment of the disclosure.

FIG.5Cis a view illustrating a configuration of a switching element according to an embodiment of the disclosure.

An electronic device ofFIG.5Amay be similar, at least in part, to the electronic device101ofFIG.1or the electronic device200ofFIGS.2A to3, or may include other embodiments of the electronic device.

FIG.5Ashows a structure of the antennas A1and A2when the second surface (e.g., the second surface412inFIG.4) of the first housing structure410is viewed from above.

Referring toFIGS.5A,5B and5C, an electronic device400may include the first lateral member413disposed in the first housing structure (e.g., the first housing structure410inFIG.4). In an embodiment, the first lateral side member413may be rotatably connected to the second lateral member (e.g., the second lateral member423inFIG.4) of the second housing structure (e.g., the second housing structure420inFIG.4) through the hinge structure460.

According to various embodiments, the first lateral member413may include the first conductive portion4131extending in the first direction (direction1) along the hinge structure460, the second conductive portion4132extending in the second direction (direction2) to be substantially perpendicular to the first conductive portion4131, the third conductive portion4133extending in the first direction to be substantially parallel to the first conductive portion4131, the first non-conductive portion4134connected between the first and second conductive portions4131and4132, and the second non-conductive portion4135connected between the second and third conductive portions4132and4133.

According to various embodiments, the electronic device400may include the first antenna A1formed using at least a part of the first conductive portion4131, and the second antenna A2formed using at least a part of the second conductive portion4132. In an embodiment, the first antenna A1may operate in a frequency band relatively higher than that of the second antenna A2.

According to various embodiments, the electronic device400may include a printed circuit board (PCB)480disposed in the first space4130of the first lateral member413. In an embodiment, the PCB480may include a second conductive layer481having a certain size. In an embodiment, the second conductive layer481may operate as a ground plane electrically connected to the first lateral member413.

According to various embodiments, the electronic device400may include a plurality of connecting pieces4136,4137,4138, and4139respectively extending from the first lateral member413and overlapped with at least a portion of the PCB480when the second surface (e.g., the second surface412inFIG.4) is viewed from above. In an embodiment, the plurality of connecting pieces4136,4137,4138, and4139may include a first connecting piece4136extending to a first point P1of the first conductive portion4131, a second connecting piece4137extending to a second point P2of the second conductive portion4132, a third connecting piece4138extending to a third point P3of the second conductive portion4132wherein the third point P3is disposed closer to the first non-conductive portion4134than the first point P1, and/or a fourth connecting piece4139extending to a fourth point P4of the first conductive portion4131wherein the fourth point P4is disposed farther from the first non-conductive portion4134than the first point P1. In an embodiment, when the PCB480is mounted in the first space4130, the plurality of connecting pieces4136,4137,4138, and4139may be electrically connected to the PCB480. In another embodiment, each of the plurality of connecting pieces4136,4137,4138, and4139may be electrically connected to the PCB480through a separate electrical connection member (e.g., a C-clip or a conductive contact).

According to various embodiments, the PCB480may have a first electrical path4701(e.g., a wiring line) that electrically connects, at the first point P1, the first connecting piece4136to a wireless communication circuit470disposed on the PCB480. In an embodiment, at least one matching circuit471for impedance matching of the first antenna A1may be disposed on the first electrical path4701. In addition, at least one electric shock preventing circuit472for preventing electric shock and performing electrostatic discharge (ESD) may be disposed on the first electrical path4701because the PCB480is in direct electrical contact with the first lateral member413that forms at least a part of the exterior of the electronic device400.

According to various embodiments, the PCB480may have a second electrical path4702(e.g., a wiring line) that electrically connects, at the second point P2, the second connecting piece4137to the wireless communication circuit470disposed on the PCB480. In an embodiment, at least one matching circuit473for impedance matching of the second antenna A2may be disposed on the second electrical path4702. In addition, at least one electric shock preventing circuit474may be disposed on the second electrical path4702.

According to various embodiments, the PCB480may have a third electrical path4703(e.g., a wiring line) that electrically connects, at the third point P3, the third connecting piece4138to the second conductive layer481disposed on the PCB480. In an embodiment, at least one switching element475for selectively and electrically connecting the third connecting piece4138to the second conductive layer481may be disposed on the third electrical path4703in order to change the operating frequency band of the first antenna A1. In an embodiment, as illustrated inFIG.5C, the switching element475may be configured to disconnect the third connecting piece4138and the second conductive layer481or to be electrically connected to a variable circuit T including one or more passive elements4751and4752(e.g., R, L or C) disposed on the third electrical path4703.

According to various embodiments, the PCB480may have a fourth electrical path4704(e.g., a wiring line) that electrically connects, at the fourth point P4, the fourth connecting piece4139to the second conductive layer481disposed on the PCB480. In an embodiment, the PCB480may further have at least one electric shock preventing capacitor476disposed on the fourth electrical path4704.

According to various embodiments, the first antenna A1may operate as a slot antenna having an electrical length of λ/2 by using a conductive annular path (AP) formed by a part of the first conductive portion4131, the first non-conductive portion4134, a part of the second conductive portion4132, and a part of the second conductive layer481. In this case, the third connecting piece4138disposed at the third point P3may maintain a state of being electrically connected to the second conductive layer481of the PCB480through the switching element475. In an embodiment, the first conductive portion4131and the second conductive portion4132, which are isolated from each other by the first non-conductive portion4134, may be arranged to have a capacitively coupled interval so as to operate as a capacitor component at a relatively high frequency. In an embodiment, when the third connecting piece4138and the second conductive layer481are electrically disconnected through the switching element475, the first antenna A1may operate in another designated frequency band. For example, when the second antenna A2is opened through the switching element475or matched to have a specified impedance through the variable element T, the second antenna A2may operate in a lower frequency band by an extended slot area formed through a conductive electronic component491(e.g., a speaker module, a microphone module, a camera device, a card slot, or a conductive structure) disposed near the second conductive portion4132. Accordingly, the first antenna A1may change the operating frequency band through a selective electrical connection between the third connecting piece4138and the second conductive layer481under the control of the switching element475. Although not shown, the annular path (AP) may be formed when the third connecting piece4138is electrically connected to the second conductive layer481even when the first and second conductive portions4131and4132are connected without the first non-conductive portion4134. In this case, the first antenna A1may operate in a relatively higher frequency band than case where there is the first non-conductive portion4134.

According to various embodiments, the processor490may change the operating frequency band of the first antenna A1by detecting state information (e.g., region information or channel information) of the electronic device400through one or more sensors disposed in the electronic device400, determining a current frequency mode based on the detected state information, and controlling the switching element475according to the determined frequency mode.

FIGS.6A and6Billustrate a current distribution of a first antenna in an electronic device illustrated inFIG.5Aaccording to various embodiments of the disclosure.

Referring toFIGS.6A and6B, when a first housing structure (e.g., the first housing structure410inFIG.4) and a second housing structure (e.g., the second housing structure420inFIG.4) are unfolded (seeFIG.6A) or folded (seeFIG.6B), a first antenna (e.g., the first antenna A1inFIG.5A) operates as a slot antenna because an annular path (e.g., the annular path AP inFIG.5A) is formed through a second conductive layer (e.g., the second conductive layer481inFIG.5A) electrically connected to a third connecting piece (e.g., the third connecting piece4138inFIG.5A), a hinge structure (e.g., the hinge structure460inFIG.5A), and a first conductive portion (e.g., the first conductive portion4131inFIG.5A).

FIG.7is a graph illustrating a radiation efficiency of a first antenna according to an embodiment of the disclosure.

Referring toFIG.7, a first antenna (e.g., the first antenna A1inFIG.5A) can shift the operating frequency band under the control of a switching element (e.g., the switching element475inFIG.5A) that selectively and electrically connects a third connecting piece (the third connecting piece4138inFIG.5A) to a second conductive layer (e.g., the second conductive layer481inFIG.5A). In an embodiment, when the third connecting piece (the third connecting piece4138inFIG.5A) is electrically connected to the second conductive layer (e.g., the second conductive layer481inFIG.5A) of a PCB (e.g., the PCB480inFIG.5A) through the switching element (e.g., the switching element475inFIG.5A), the first antenna (e.g., the first antenna A1inFIG.5A) operates in the frequency band of about 2.4 GHz. In addition, when the third connecting piece (the third connecting piece4138inFIG.5A) is electrically disconnected from the second conductive layer (e.g., the second conductive layer481inFIG.5A) of the PCB (e.g., the PCB480inFIG.5A) through the switching element (e.g., the switching element475inFIG.5A), the first antenna is shifted to a frequency band of about 2.2 GHz.

FIG.8is a graph illustrating a radiation efficiency of a first antenna when an electronic device illustrated inFIG.5Ais in a folded state or in an unfolded state according to an embodiment of the disclosure.

Referring toFIG.8, it can be seen that the first antenna (e.g., the first antenna A1inFIG.5A) implemented as a slot antenna through an annular path (e.g., the annular path AP inFIG.5A) using a hinge structure (e.g., the hinge structure460inFIG.5A) has the substantially same radiation performance regardless of whether a first housing structure (e.g., the first housing structure410inFIG.4) and a second housing structure (e.g., the second housing structure420inFIG.4) are in the folded state or in the unfolded state.

FIG.9is a view illustrating an arrangement relationship of antennas in an electronic device according to an embodiment of the disclosure.

An electronic device ofFIG.9may be similar, at least in part, to the electronic device101ofFIG.1or the electronic device200ofFIGS.2A to3, or may include other embodiments of the electronic device.

Referring toFIG.9, an electronic device900is of a bar type and includes antennas A1and A2disposed in a conductive housing. The electronic device900has the substantially same configuration as the electronic device illustrated inFIG.5A, so that descriptions thereof will be omitted.

As described above, in the foldable-type electronic device400ofFIG.5A, the antennas A1and A2are applied to an asymmetrical structure of the conductive lateral member413caused by the hinge structure460. Similarly, the bar-type electronic device900illustrated inFIG.9includes the substantially same antennas A1and A2that operate using a slot area4130formed inside the conductive lateral member413having an asymmetrical left/right structure. Therefore, even though the thickness (t2) of the first conductive portion4131of the lateral member413is greater than the thickness (t1) of the third conductive portion4133, the antennas A1and A2can operate to have a specified frequency through the inner slot area4130.

As described hereinbefore, the electronic device according to various embodiments of the disclosure uses the conductive hinge structure as a part of the antenna. Therefore, a change in a design of the hinge structure according to the impedance matching is unnecessary, the radiation performance is maximized, and a shift to a desired operating frequency band is free.

According to various embodiments of the disclosure, an electronic device (e.g., the electronic device400inFIG.4) may include a foldable housing, a flexible display (e.g., the display430inFIG.4), at least one printed circuit board (PCB, e.g., the PCB480inFIG.5A), and a wireless communication circuit (e.g., the wireless communication circuit470inFIG.5A). The foldable housing includes a hinge structure (e.g., the hinge structure460inFIG.4), a first housing structure (e.g., the first housing structure410inFIG.4) connected to the hinge structure and including a first surface (e.g., the first surface411inFIG.4) facing in a first direction (e.g., a positive direction of the Z-axis inFIG.3), a second surface (e.g., the second surface412inFIG.4) facing in a direction (e.g., a negative direction of the Z-axis inFIG.3) opposite to the first direction, and a first lateral member (e.g., the first lateral member413inFIG.4) surrounding a first space (e.g., the first space4130inFIG.5A) between the first surface and the second surface, and a second housing structure (e.g., the second housing structure420inFIG.4) connected to the hinge structure and including a third surface (e.g., the third surface421inFIG.4) facing in a second direction (e.g., a positive direction of the Z-axis inFIG.3), a fourth surface (e.g., the fourth surface422inFIG.4) facing in a direction (e.g., a negative direction of the Z-axis inFIG.3) opposite to the second direction, and a second lateral member (e.g., the second lateral member423inFIG.4) surrounding a second space between the third surface and the fourth surface. The first lateral member includes a first conductive portion (e.g., the first conductive portion4131inFIG.5A) extending along the hinge structure, a second conductive portion (e.g., the second conductive portion4132inFIG.5A) extending substantially perpendicular to the first conductive portion, a third conductive portion (e.g., the third conductive portion4133inFIG.5A) extending substantially parallel to the first conductive portion, a first non-conductive portion (e.g., the first non-conductive portion4134inFIG.5A) connected between the first and second conductive portions, and a second non-conductive portion (e.g., the second non-conductive portion4135inFIG.5A) connected between the second and third conductive portions. The first and second housing structures are foldable along the hinge structure such that the first surface faces the third surface in a folded state and the second direction is equal to the first direction in an unfolded state. The flexible display includes a first conductive layer that extends from the first surface to the third surface. The at least one PCB is disposed in the first space and includes a second conductive layer (e.g., the second conductive layer481inFIG.5A) forming an annular path (e.g., the annular path AP inFIG.5A) together with a part of the first conductive portion, the first non-conductive portion, and a part of the second conductive portion. The wireless communication circuit is disposed on the at least one PCB and electrically connected to a first point (e.g., the first point P1inFIG.5A) of the first conductive portion on the annular path and to a second point (e.g., the second point P2inFIG.5A) of the second conductive portion outside the annular path.

According to various embodiments, the hinge structure may include a conductive material.

According to various embodiments, at least a part of the hinge structure may be electrically connected to the first housing structure.

According to various embodiments, the electronic device may further include a switching element (e.g., the switching element475inFIG.5A) electrically connected between the second conductive layer (e.g., the second conductive layer481inFIG.5A) and a third point (e.g., the third point P3inFIG.5A) of the second conductive portion (e.g., the second conductive portion4132inFIG.5A). The third point may be disposed closer to the first non-conductive portion (e.g., the first non-conductive portion4134inFIG.5A) than the second point.

According to various embodiments, the wireless communication circuit may be configured to transmit and/or receive a first signal of a first frequency band through the first point and the annular path when the second conductive layer and the third point are electrically connected through the switching element.

According to various embodiments, the wireless communication circuit may be configured to transmit and/or receive a second signal of a second frequency band through the first point when the second conductive layer and the third point are electrically disconnected through the switching element.

According to various embodiments, the first frequency band may be relatively higher than the second frequency band.

According to various embodiments, the first conductive portion and the second conductive portion may be disposed at positions capacitively coupled to each other by the first non-conductive portion.

According to various embodiments, the second conductive layer may include a ground plane of the PCB, and the second conductive layer may be electrically connected to a fourth point (e.g., the fourth point P4inFIG.5A) of the first conductive portion.

According to various embodiments, the fourth point may be disposed farther from the first non-conductive portion than the first point.

According to various embodiments, the second housing structure may further include a third non-conductive portion (e.g., the third non-conductive portion4234inFIG.4) and a fourth non-conductive portion (e.g., the fourth non-conductive portion4235inFIG.4) which are disposed at positions facing the first and second non-conductive portions of the first housing structure, respectively, when the first and second housing structures are in a folded state.

According to various embodiments of the disclosure, an electronic device (e.g., the electronic device400inFIG.4) may include a foldable housing, a display (e.g., the display430inFIG.4), at least one printed circuit board (PCB, e.g., the PCB480inFIG.5A), a wireless communication circuit (e.g., the wireless communication circuit470inFIG.5A), a switching element (e.g., the switching element475inFIG.5A), and at least one processor (e.g., the processor490inFIG.5A). The foldable housing includes a conductive hinge structure (e.g., the hinge structure460inFIG.4), a first housing structure (e.g., the first housing structure410inFIG.4) connected to the hinge structure and including a first surface (e.g., the first surface411inFIG.4) facing in a first direction (e.g., a positive direction of the Z-axis inFIG.3), a second surface (e.g., the second surface412inFIG.4) facing in a direction (e.g., a negative direction of the Z-axis inFIG.3) opposite to the first direction, and a first lateral member (e.g., the first lateral member413inFIG.4) surrounding a first space (e.g., the first space4130inFIG.5A) between the first surface and the second surface, and a second housing structure (e.g., the second housing structure420inFIG.4) connected to the hinge structure and including a third surface (e.g., the third surface421inFIG.4) facing in a second direction (e.g., a positive direction of the Z-axis inFIG.3), a fourth surface (e.g., the fourth surface422inFIG.4) facing in a direction (e.g., a negative direction of the Z-axis inFIG.3) opposite to the second direction, and a second lateral member (e.g., the second lateral member423inFIG.4) surrounding a second space between the third surface and the fourth surface. The first lateral member includes a first conductive portion (e.g., the first conductive portion4131inFIG.5A) extending along the hinge structure at least in part, a second conductive portion (e.g., the second conductive portion4132inFIG.5A) extending from the first conductive portion, a third conductive portion (e.g., the third conductive portion4133inFIG.5A) extending from the second conductive portion, a first non-conductive portion (e.g., the first non-conductive portion4134inFIG.5A) connected between the first and second conductive portions, and a second non-conductive portion (e.g., the second non-conductive portion4135inFIG.5A) connected between the second and third conductive portions. The first and second housing structures are foldable such that the first surface faces the third surface in a folded state and the second direction is equal to the first direction in an unfolded state. The display extends from at least a part of the first surface to at least a part of the third surface. The at least one PCB is disposed in the first space and includes a conductive layer (e.g., the conductive layer481inFIG.5A) forming an annular path (e.g., the annular path AP inFIG.5A) together with a part of the first conductive portion, the first non-conductive portion, and a part of the second conductive portion. The wireless communication circuit is disposed on the at least one PCB and electrically connected to a first point (e.g., the first point P1inFIG.5A) of the first conductive portion on the annular path and to a second point (e.g., the second point P2inFIG.5A) of the second conductive portion outside the annular path. The switching element is disposed on the PCB and selectively and electrically connected between the conductive layer and a third point (e.g., the third point P3inFIG.5A) of the second conductive portion so as to selectively form the annular path. The at least one processor controls the switching element to selectively determine the annular path according to state information of the electronic device.

According to various embodiments, at least a part of the hinge structure may be electrically connected to the first housing structure.

According to various embodiments, the third point may be disposed closer to the first non-conductive portion than the second point.

According to various embodiments, the wireless communication circuit may be configured to transmit and/or receive a first signal of a first frequency band through the first point and the annular path when the conductive layer and the third point are electrically connected through the switching element.

According to various embodiments, the wireless communication circuit may be configured to transmit and/or receive a second signal of a second frequency band through the first point when the conductive layer and the third point are electrically disconnected through the switching element.

According to various embodiments, the first frequency band may be relatively higher than the second frequency band.

According to various embodiments, the first conductive portion and the second conductive portion may be disposed at positions capacitively coupled to each other by the first non-conductive portion.

According to various embodiments, the conductive layer may include a ground plane of the PCB, and the conductive layer may be electrically connected to a fourth point (e.g., the fourth point P4inFIG.5A) of the first conductive portion.

According to various embodiments, the fourth point may be disposed farther from the first non-conductive portion than the first point.