Electronic devices including foldable housings and antennas

Abstract

An electronic device includes: a foldable housing comprising a first housing portion, a second housing portion, and a third housing portion, folded relative to a first folding axis and a second folding axis, the first housing portion, the second housing portion, and the third housing portion stacked on top of each other in their folded state; a wireless communication circuit for wireless communication; and a filter circuit electrically connected to a portion of a first conductive portion and a second conductive portion, at least a portion of the first conductive portion being formed along a first side surface of the first housing portion, and the first conductive portion including a feed point electrically connected to the wireless communication circuit and a ground point electrically connected to a ground terminal of the electronic device, at least a portion of the second conductive portion being formed along a second side surface of the second housing portion, and the filter circuit being electrically connected to the second conductive portion of the second side surface and the ground terminal, wherein, when the first housing portion, the second housing portion, and the third housing portion are folded, the second housing portion is located between the first housing portion and the third housing portion, and when the first housing portion and the second housing portion are folded, a portion of the second conductive portion of the second side surface corresponds to the region between the feed point of the first conductive portion and the ground point of the first conductive portion.

Description

Technical Field

[0001] This disclosure relates to an electronic device comprising a foldable housing and an antenna. Background Technology

[0002] Electronic devices can transmit or receive signals via antennas. For example, an electronic device may include multiple conductive portions forming part of its side surface. Some of these conductive portions may operate as antenna radiators for transmitting and / or receiving signals.

[0003] For example, electronic devices may include foldable housings and flexible displays suitable for providing an enhanced user experience. For instance, a foldable housing may include multiple housing sections. The foldable housing may have a structure in which multiple housing sections can be folded or unfolded at least once.

[0004] The above information is presented as background information only to aid in understanding this disclosure. No determination or assertion is made regarding whether any of the above content can be used as prior art with respect to this disclosure. Summary of the Invention

[0005] [Technical Solution]

[0006] The various aspects of this disclosure will provide at least the advantages described below. Therefore, one aspect of this disclosure is to provide an electronic device comprising a foldable housing and an antenna.

[0007] Other aspects will be set forth in part in the description which follows, and in part will be apparent from the description, or may be learned by practice of the embodiments presented.

[0008] According to one aspect of this disclosure, an electronic device is provided. The electronic device includes a foldable housing comprising a first housing portion, a second housing portion, and a third housing portion, the foldable housing being configured to fold relative to a first folding axis and a second folding axis such that the first housing portion, the second housing portion, and the third housing portion are stacked relative to each other in a folded state. The electronic device includes a wireless communication circuit for wireless communication. The electronic device includes a first conductive portion formed at least partially along a first side outer surface of the first housing portion, the first conductive portion including a feed point electrically connected to the wireless communication circuit and a ground point electrically connected to a ground terminal of the electronic device. The electronic device includes a filter circuit electrically connected to a portion of a second conductive portion formed at least partially along a second side outer surface of the second housing portion, and electrically connected to the second conductive portion on the second side outer surface and the ground terminal. In the folded state with the first housing portion, the second housing portion, and the third housing portion folded, the second housing portion is located between the first housing portion and the third housing portion. In the folded state with the first housing portion and the second housing portion folded, a portion of the second conductive portion in the second side outer surface corresponds to the region between the feed point and the ground point of the first conductive portion.

[0009] According to another aspect of this disclosure, an electronic device is provided. The electronic device includes a foldable housing comprising a first housing portion, a second housing portion, one side of the second housing portion rotatably connected to one side of the first housing portion relative to a first folding axis, and a third housing portion rotatably connected to the other side of the first housing portion or the other side of the second housing portion relative to a second folding axis parallel to the first folding axis. The electronic device includes a first conductive portion formed at least partially along a first side outer surface of the first housing portion and including a first feed point and a first ground point. The electronic device includes a filter circuit electrically connected to a portion of the second conductive portion formed at least partially along a second side outer surface of the second housing portion, and electrically connected to the second side outer surface and a ground terminal. The electronic device includes a third conductive portion formed at least partially along a third side outer surface of the third housing portion and including a second feed point and a second ground point. In a folded state with the first housing portion, second housing portion, and third housing portion folded, the second housing portion is located between the first housing portion and the third housing portion. A portion of the second outer surface corresponds to the first region between the first feed point and the first ground point, and the second region between the second feed point and the second ground point.

[0010] Other aspects, advantages, and salient features of this disclosure will become apparent to those skilled in the art from the following detailed description of various embodiments disclosed in conjunction with the accompanying drawings. Attached Figure Description

[0011] The above and other aspects, features and advantages of certain embodiments of the present disclosure will become more apparent from the following description taken in conjunction with the accompanying drawings, in which:

[0012] Figure 1 This is a block diagram of an electronic device in a network environment according to an embodiment;

[0013] Figure 2a and Figure 2b An electronic device including a foldable housing is shown according to various embodiments;

[0014] Figure 3a This is a block diagram of an electronic device according to an embodiment;

[0015] Figure 3b and Figure 3c A foldable housing of an electronic device according to various embodiments is shown;

[0016] Figure 4a The current formed on the side surface of an electronic device excluding filter circuitry is shown;

[0017] Figure 4b The diagram illustrates a current formed on the side surface of an electronic device including a filter circuit according to an embodiment;

[0018] Figure 5a The side surface of the electronic device according to the comparative example is shown;

[0019] Figure 5b A side surface of an electronic device according to an embodiment is shown;

[0020] Figure 5c It is a graph showing the efficiency of the antenna;

[0021] Figure 6a It is a graph used to identify differences in the radiation efficiency of antennas through filter circuits;

[0022] Figure 6b It is a graph used to identify differences in the reflection coefficients of antennas through filter circuits;

[0023] Figure 7a A second housing portion and a side surface of a foldable housing of an electronic device according to an embodiment are shown;

[0024] Figure 7b The efficiency of the first antenna is shown based on the location of the portion;

[0025] Figure 7c The efficiency of the second antenna is shown based on the location of the portion;

[0026] Figure 7dThe efficiency of the first antenna is shown based on the location of a portion of the second region;

[0027] Figure 7e The efficiency of the second antenna is shown based on the location of a portion of the second region;

[0028] Figure 8 A side surface of an electronic device according to an embodiment is shown;

[0029] Figure 9a A side surface of an electronic device according to an embodiment is shown;

[0030] Figure 9b It shows according to Figure 9a Does the electronic device shown include the efficiency of the first antenna of the filter circuit?

[0031] Figure 9c It shows according to Figure 9a Does the electronic device shown include the efficiency of the second antenna, which incorporates a filter circuit?

[0032] Figure 10a This is a block diagram of an electronic device according to an embodiment;

[0033] Figure 10b The communication characteristics of an electronic device via a filter circuit are shown;

[0034] Figure 11a A side surface of an electronic device according to an embodiment is shown;

[0035] Figure 11b It shows Figure 11a The efficiency of the first and second antennas of the electronic device shown;

[0036] Figure 11c It shows Figure 11a The reflection coefficients of the first and second antennas of the electronic device shown;

[0037] Figure 12a A side surface of an electronic device according to an embodiment is shown;

[0038] Figure 12b It shows Figure 12a The efficiency of the antenna of the electronic device shown;

[0039] Figure 13a A side surface of an electronic device according to an embodiment is shown;

[0040] Figure 13b It shows Figure 13a The efficiency of the antenna of the electronic device shown;

[0041] Figure 14aA side surface of an electronic device according to an embodiment is shown;

[0042] Figure 14b It shows Figure 14a The efficiency of the antenna of the electronic device shown;

[0043] Figure 15a A side surface of an electronic device according to an embodiment is shown;

[0044] Figure 15b The efficiency of a first antenna according to an embodiment, based on the locations of the feed point and ground point of the electronic device, is shown; and

[0045] Figure 15c The efficiency of a second antenna according to an embodiment is shown based on the location of the feed point and ground point of the electronic device.

[0046] Throughout the accompanying drawings, it should be noted that the same reference numerals are used to depict the same or similar elements, features, and structures. Detailed Implementation

[0047] The following description with reference to the accompanying drawings is intended to aid in a full understanding of the various embodiments of this disclosure as defined by the claims and their equivalents. It includes various specific details to aid understanding, but these are considered exemplary only. Therefore, those skilled in the art will recognize that various changes and modifications can be made to the various embodiments described herein without departing from the scope and spirit of this disclosure. Additionally, for clarity and brevity, descriptions of well-known functions and structures may be omitted.

[0048] The terms and words used in the following description and claims are not limited to their literal meaning, but are used by the inventors only to enable a clear and consistent understanding of this disclosure. Therefore, those skilled in the art should understand that the following description of various embodiments of this disclosure is for illustrative purposes only and is not intended to limit the scope of this disclosure as defined by the appended claims and their equivalents.

[0049] It should be understood that, unless the context clearly specifies otherwise, the singular forms “a,” “an,” and “the” include plural indicators. Thus, for example, a reference to “component surface” includes a reference to one or more such surfaces.

[0050] It should be understood that the boxes in each flowchart and the combination of flowcharts can be executed by one or more computer programs that include computer-executable instructions. The entirety of one or more computer programs can be stored in a single memory device, or one or more computer programs can be divided into different parts stored in multiple different memory devices.

[0051] Any function or operation described herein can be processed by a processor or a combination of processors. A processor or combination of processors is circuitry that performs processing and includes, for example, an application processor (AP, such as a central processing unit (CPU)), a communication processor (CP, such as a modem), a graphics processing unit (GPU), a neural processing unit (NPU) (e.g., an artificial intelligence (AI) chip), a Wi-Fi chip, Bluetooth, etc. TM Circuits including chips, GPS chips, NFC chips, connectivity chips, sensor controllers, touch controllers, fingerprint sensor controllers, display driver integrated circuits (ICs), audio codec chips, Universal Serial Bus (USB) controllers, camera controllers, image processing ICs, microprocessor units (MPUs), system-on-a-chip (SoCs), and other ICs.

[0052] Figure 1 A block diagram of an electronic device in a network environment according to an embodiment is shown.

[0053] Reference Figure 1 In network environment 100, electronic device 101 can communicate with electronic device 102 via a first network 198 (e.g., a short-range wireless communication network), or with at least one of electronic device 104 or server 108 via a second network 199 (e.g., a long-range wireless communication network). According to an embodiment, electronic device 101 can communicate with electronic device 104 via server 108. According to an embodiment, electronic device 101 may include a processor 120, memory 130, input module 150, sound output module 155, display module 160, audio module 170, sensor module 176, interface 177, connection terminal 178, haptic module 179, camera module 180, power management module 188, battery 189, communication module 190, user identification module (SIM) 196, or antenna module 197. In some embodiments, at least one of the above components (e.g., connection terminal 178) may be omitted from electronic device 101, or one or more other components may be added to electronic device 101. In some embodiments, some of the components described above (e.g., sensor module 176, camera module 180, or antenna module 197) may be implemented as a single integrated component (e.g., display module 160).

[0054] Processor 120 may run software (e.g., program 140) to control at least one other component (e.g., hardware or software component) of electronic device 101 connected to processor 120, and may perform various data processing or calculations. According to one embodiment, as at least part of the data processing or calculation, processor 120 may store commands or data received from another component (e.g., sensor module 176 or communication module 190) in volatile memory 132, process the commands or data stored in volatile memory 132, and store the resulting data in non-volatile memory 134. According to embodiments, processor 120 may include a main processor 121 (e.g., central processing unit (CPU) or application processor (AP)) or an auxiliary processor 123 (e.g., graphics processing unit (GPU), neural processing unit (NPU), image signal processor (ISP), sensor central processor, or communication processor (CP)) that is operationally independent of or combined with the main processor 121. For example, when electronic device 101 includes a main processor 121 and an auxiliary processor 123, the auxiliary processor 123 may be adapted to consume less power than the main processor 121, or to be dedicated to a specific function. The auxiliary processor 123 may be implemented separately from the main processor 121, or may be implemented as part of the main processor 121.

[0055] When the main processor 121 is inactive (e.g., in sleep) state, the auxiliary processor 123 (rather than the main processor 121) can control at least some of the functions or states associated with at least one component of the electronic device 101 (e.g., display module 160, sensor module 176, or communication module 190), or when the main processor 121 is active (e.g., running an application), the auxiliary processor 123 can work with the main processor 121 to control at least some of the functions or states associated with at least one component of the electronic device 101 (e.g., display module 160, sensor module 176, or communication module 190). According to embodiments, the auxiliary processor 123 (e.g., an image signal processor or a communication processor) may be implemented as part of another component (e.g., camera module 180 or communication module 190) functionally associated with the auxiliary processor 123. According to embodiments, the auxiliary processor 123 (e.g., a neural processing unit) may include hardware architecture dedicated to artificial intelligence model processing. Artificial intelligence models can be generated through machine learning. For example, such learning can be performed via electronic device 101 where artificial intelligence is performed or via a separate server (e.g., server 108). The learning algorithm may include, but is not limited to, supervised learning, unsupervised learning, semi-supervised learning, or reinforcement learning. The artificial intelligence model may include multiple layers of artificial neural networks. 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), or a deep Q-network, or a combination of two or more thereof, but is not limited thereto. Additionally or optionally, the artificial intelligence model may include software structures in addition to hardware structures.

[0056] Memory 130 may store various data used by at least one component of electronic device 101 (e.g., processor 120 or sensor module 176). The various data may include, for example, software (e.g., program 140) and input or output data for commands associated with it. Memory 130 may include volatile memory 132 or non-volatile memory 134.

[0057] The program 140 may be stored as software in the memory 130, and the program 140 may include, for example, an operating system (OS) 142, middleware 144, or application 146.

[0058] The input module 150 can receive commands or data from outside the electronic device 101 (e.g., a user) that will be used by other components of the electronic device 101 (e.g., processor 120). The input module 150 may include, for example, a microphone, mouse, keyboard, keys (e.g., buttons), or digital pen (e.g., stylus).

[0059] The sound output module 155 can 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 can be used for general purposes such as playing multimedia or playing records. The receiver can be used to receive incoming calls. According to an embodiment, the receiver can be implemented separately from the speaker or as part of the speaker.

[0060] Display module 160 can visually provide information to the outside of electronic device 101 (e.g., to a user). Display device 160 may include, for example, a display, a holographic device, or a projector, and control circuitry for controlling a respective one of the display, holographic device, and projector. According to an embodiment, display module 160 may include a touch sensor adapted to detect touch or a pressure sensor adapted to measure the intensity of the force caused by touch.

[0061] The audio module 170 can convert sound into electrical signals and vice versa. According to an embodiment, the audio module 170 can obtain sound via the input module 150, or output sound via the sound output module 155 or headphones of an external electronic device (e.g., electronic device 102) that is directly (e.g., wired) or wirelessly connected to the electronic device 101.

[0062] Sensor module 176 can detect the operating state of electronic device 101 (e.g., power or temperature) or the environmental state outside electronic device 101 (e.g., user state), and then generate an electrical signal or data value corresponding to the detected state. According to embodiments, sensor module 176 may include, for example, a gesture sensor, gyroscope sensor, atmospheric pressure sensor, magnetic sensor, accelerometer, grip sensor, proximity sensor, color sensor, infrared (IR) sensor, biometric sensor, temperature sensor, humidity sensor, or illuminance sensor.

[0063] Interface 177 may support one or more specific protocols used to enable electronic device 101 to connect directly (e.g., wired) or wirelessly to external electronic devices (e.g., electronic device 102). According to embodiments, interface 177 may include, for example, a High Definition Multimedia Interface (HDMI), a Universal Serial Bus (USB) interface, a Secure Digital Card (SD) interface, or an audio interface.

[0064] Connection 178 may include a connector, through which electronic device 101 may be physically connected to an external electronic device (e.g., electronic device 102). According to embodiments, connection 178 may include, for example, an HDMI connector, a USB connector, an SD card connector, or an audio connector (e.g., a headphone connector).

[0065] The haptic module 179 can convert electrical signals into mechanical stimuli (e.g., vibration or motion) or electrical stimuli that can be recognized by a user through his touch or kinesthesia. According to an embodiment, the haptic module 179 may include, for example, a motor, a piezoelectric element, or an electrical stimulator.

[0066] Camera module 180 can capture still or moving images. According to an embodiment, camera module 180 may include one or more lenses, an image sensor, an image signal processor, or a flash.

[0067] The power management module 188 manages the power supply to the electronic device 101. According to an embodiment, the power management module 188 may be implemented as at least part of, for example, a power management integrated circuit (PMIC).

[0068] Battery 189 can power at least one component of electronic device 101. According to an embodiment, battery 189 may include, for example, a non-rechargeable primary battery, a rechargeable rechargeable battery, or a fuel cell.

[0069] Communication module 190 can support the establishment of a direct (e.g., wired) or wireless communication channel between electronic device 101 and external electronic devices (e.g., electronic device 102, electronic device 104, or server 108), and perform communication via the established communication channel. Communication module 190 may include one or more communication processors capable of operating independently of processor 120 (e.g., application processor (AP)) and support direct (e.g., wired) or wireless communication. According to embodiments, communication module 190 may include wireless communication module 192 (e.g., cellular communication module, short-range wireless communication module, or Global Navigation Satellite System (GNSS) communication module) or wired communication module 194 (e.g., local area network (LAN) communication module or power line communication (PLC) module). One of these communication modules can communicate with an external electronic device via a first network 198 (e.g., a short-range communication network such as Bluetooth, Wi-Fi Direct, or Infrared Data Association (IrDA)) or a second network 199 (e.g., a long-range communication network such as a traditional cellular network, 5G network, next-generation communication network, the Internet, or a computer network (e.g., a LAN or a wide area network (WAN))). These various types of communication modules can be implemented as a single component (e.g., a single chip) or as multiple components separate from each other (e.g., multiple chips). The wireless communication module 192 can identify and verify the electronic device 101 in the communication network (such as the first network 198 or the second network 199) using user information (e.g., the International Mobile Subscriber Identity (IMSI)) stored in the user identification module 196.

[0070] Wireless communication module 192 can support 5G networks following 4G networks and next-generation communication technologies (such as new radio (NR) access technologies). NR access technologies can support enhanced mobile broadband (eMBB), massive machine-type communication (mMTC), or ultra-reliable low-latency communication (URLLC). Wireless communication module 192 can support high-frequency bands (e.g., millimeter-wave bands) to achieve, for example, high data transmission rates. Wireless communication module 192 can support various technologies used to ensure performance in high-frequency bands, such as, for example, beamforming, massive MIMO, full-dimensional MIMO (FD-MIMO), array antennas, analog beamforming, or massive antennas. Wireless communication module 192 can support various requirements specified in electronic device 101, external electronic devices (e.g., electronic device 104), or network systems (e.g., second network 199). According to an embodiment, the wireless communication module 192 may support peak data rates (e.g., 20 Gbps or greater) for implementing eMBB, lost coverage (e.g., 164 dB or less) for implementing mMTC, or U-plane latency (e.g., 0.5 ms or less for each of the downlink (DL) and uplink (UL), or 1 ms or less round trip) for implementing URLLC.

[0071] Antenna module 197 can transmit or receive signals or power to or from the exterior of electronic device 101 (e.g., external electronic device). According to an embodiment, antenna module 197 may include an antenna comprising a radiating element formed of a conductive material or conductive pattern formed in or on a substrate (e.g., a printed circuit board (PCB)). According to an embodiment, antenna module 197 may include multiple antennas (e.g., an array antenna). In this case, at least one antenna suitable for a communication scheme used in a communication network (such as a first network 198 or a second network 199) can be selected from the multiple antennas by, for example, communication module 190 (e.g., wireless communication module 192). Signals or power can then be transmitted or received between communication module 190 and the external electronic device via the selected at least one antenna. According to an embodiment, additional components besides the radiating element (e.g., a radio frequency integrated circuit (RFIC)) may be additionally incorporated into antenna module 197.

[0072] According to various embodiments, antenna module 197 may form a millimeter-wave antenna module. According to embodiments, the millimeter-wave antenna module may include a printed circuit board, a radio frequency integrated circuit (RFIC), and multiple antennas (e.g., an array antenna), wherein the RFIC is disposed on or adjacent to a first surface (e.g., a bottom surface) of the printed circuit board and is capable of supporting a specified high-frequency band (e.g., a millimeter-wave band), and the multiple antennas are disposed on or adjacent to a second surface (e.g., a top surface or a side surface) of the printed circuit board and are capable of transmitting or receiving signals in the specified high-frequency band.

[0073] At least some of the aforementioned components can be interconnected and communicate signals (e.g., commands or data) between them via an inter-peripheral communication scheme (e.g., bus, general purpose input / output (GPIO), serial peripheral interface (SPI), or mobile industrial processor interface (MIPI)).

[0074] According to an embodiment, commands or data can be sent or received between electronic device 101 and external electronic device 104 via server 108 connected to a second network 199. Each of electronic device 102 or electronic device 104 can be a device of the same type as electronic device 101, or a device of a different type. According to an embodiment, all or some operations that would be performed on electronic device 101 can be performed on one or more of external electronic devices 102, external electronic devices 104, or server 108. For example, if electronic device 101 is required to automatically perform a function or service, or is required to perform a function or service in response to a request from a user or another device, electronic device 101 may request the one or more external electronic devices to perform at least a portion of the function or service, instead of running the function or service, or electronic device 101 may request the one or more external electronic devices to perform at least a portion of the function or service in addition to running the function or service. Upon receiving the request, one or more external electronic devices may perform at least a portion of the requested function or service, or perform additional functions or services related to the request, and transmit the result of the execution to electronic device 101. Electronic device 101 may provide the result as at least a partial response to the request, with or without further processing of the result. For this purpose, technologies such as cloud computing, distributed computing, mobile edge computing (MEC), or client-server computing may be used. Electronic device 101 may use, for example, distributed computing or mobile edge computing to provide ultra-low latency services. In another embodiment, external electronic device 104 may include an Internet of Things (IoT) device. Server 108 may be an intelligent server using machine learning and / or neural networks. According to embodiments, external electronic device 104 or server 108 may be included in a second network 199. Electronic device 101 may be applied to intelligent services based on 5G communication technology or IoT-related technologies (e.g., smart homes, smart cities, smart cars, or healthcare).

[0075] Figure 2a and Figure 2b An electronic device including a foldable housing is shown according to various embodiments.

[0076] Reference Figure 2aThe electronic device 101 according to an embodiment may include a deformable foldable housing 200. For example, the foldable housing 200 may be referred to as a multiple foldable housing because it includes a plurality of housing portions that are foldably connected. In an example, the foldable housing 200 may include a first housing portion 210, a second housing portion 220, and a third housing portion 230 that are rotatably connected to each other. In this disclosure, the foldable housing 200 is described as having a structure including the first housing portion 210, the second housing portion 220, and the third housing portion 230, but is not limited thereto. For example, the foldable housing 200 may include three or more housing portions.

[0077] The electronic device 101 may include a hinge portion 250 (e.g., a first hinge portion 251 and a second hinge portion 252) for a deformable structure of the foldable housing 200. For example, the hinge portion 250 may rotatably connect the first housing portion 210, the second housing portion 220, and the third housing portion 230. For example, the connection relationship between the hinge portion 250 and the housing portions may vary depending on the folded configuration of the foldable housing 200.

[0078] Reference Figure 2a The second housing portion 220 may be rotatably connected to one side (e.g., the +x direction side) of the first housing portion 210 relative to the first folding axis 241. For example, the third housing portion 230 may be rotatably connected to the other side (e.g., the -x direction side) of the first housing portion 210 relative to the second folding axis 242. For example, the hinge portion 250 may include a first hinge portion 251 and a second hinge portion 252, the first hinge portion 251 rotatably connecting the second housing portion 220 to one side of the first housing portion 210, and the second hinge portion 252 rotatably connecting the third housing portion 230 to the other side of the first housing portion 210. The electronic device 101 may have a structure capable of folding at least once via the first hinge portion 251 and the second hinge portion 252.

[0079] For example, the second folding axis 242 may be parallel to the first folding axis 241. For example, the first folding axis 241 and the second folding axis 242 may be parallel to the y-axis. For example, the first folding axis 241 may be a rotation axis of the first housing portion 210 and the second housing portion 220 connected by the first hinge portion 251. For example, the second folding axis 242 may be a rotation axis of the first housing portion 210 and the third housing portion 230 connected by the second hinge portion 252.

[0080] For example, when the first housing portion 210 and / or the second housing portion 220 rotate about the first folding axis 241, the first angle 261 between the first housing portion 210 and the second housing portion 220 can change. For example, when the first housing portion 210 and / or the third housing portion 230 rotate about the second folding axis 242, the second angle 262 between the first housing portion 210 and the third housing portion 230 can change. In terms of having multiple folding axes (such as the first folding axis 241 and the second folding axis 242), the electronic device 101 according to the embodiment can be referred to as a multi-foldable electronic device.

[0081] The electronic device 101 according to an embodiment may include a flexible display 271 disposed on one surface of a foldable housing 200. For example, the flexible display 271 may extend from at least a portion of the front surface of a second housing portion 220 to at least a portion of the front surface of a third housing portion 230, and cross at least a portion of the front surface of a first housing portion 210. For example, the flexible display 271 may also fold or unfold accordingly when the foldable housing 200 is folded or unfolded.

[0082] Reference Figure 2a and Figure 2b This illustrates the different states of the electronic devices (101, 101') distinguished by the shape of their foldable housings (200, 200'). For example, Figure 2a The flexible display 271 of the electronic device 101 shown can be covered by a first housing portion 210, a second housing portion 220 and a third housing portion 230 folded along a first folding axis 241 and a second folding axis 242.

[0083] Figure 2a The first state 201 can indicate the fully deployed state of the first housing portion 210, the second housing portion 220, and the third housing portion 230. For example, in the first state 201, the first angle 261 and the second angle 262 can be substantially flat angles (e.g., about 180 degrees). From the angle from which the first housing 210, the second housing 220, and the third housing 230 are fully deployed, the first state 201 can be referred to as an open state, a flat state, an extended state, and / or a deployed state. In the first state 201, the flexible display 271 can be substantially flat. For example, in the first state 201, the first housing portion 210 can be located between the second housing portion 220 and the third housing portion 230.

[0084] Figure 2aThe second state 202 can indicate a state where at least one of the first angle 261 or the second angle 262 is less than a flat angle. For example, the electronic device 101 can change from the first state 201 to the second state 202 when the second housing portion 220 rotates relative to the first housing portion 210 or the third housing portion 230 rotates relative to the first housing portion 210. For example, the state of the electronic device 101 where the first angle 261 and / or the second angle 262 is less than a flat angle can be referred to as an inward folded state, a sub-extended state (or a sub-folded state), an intermediate state, and / or a recessed state. In the second state 202, a portion of the flexible display 271 can be folded. For example, the portion of the flexible display 271 corresponding to the first folding axis 241 and / or the second folding axis 242 can be folded at an angle corresponding to the first angle 261 and / or the second angle 262.

[0085] Figure 2a The third state 203 can indicate a fully folded state where the first housing portion 210, the second housing portion 220, and the third housing portion 230 are completely folded. For example, in the third state 203, the first angle 261 and the second angle 262 can be substantially about 0 degrees. For example, in the third state 203, the flexible display 271 can be covered by the first housing portion 210, the second housing portion 220, and / or the third housing portion 230, and therefore can be kept out of the external environment of the electronic device 101. For example, in the third state, the second housing portion 220 can be located between the first housing portion 210 and the third housing portion 230. For example, in the third state 203, the cover display 272 disposed on the third housing portion 230 can be exposed to the outside.

[0086] refer to Figure 2b The electronic device 101' according to the embodiment may include a foldable housing 200', which has a... Figure 2a The foldable housing 200 shown has different folding structures. For example, Figure 2b The flexible display 271' of the electronic device 101' shown can be partially exposed without being completely covered by the first housing portion 210', the second housing portion 220', and the third housing portion 230' folded along the first folding axis 241' and the second folding axis 242'.

[0087] For example, one side of the second housing portion 220' (e.g., the -x direction side) may be rotatably connected to one side of the first housing portion 210' (e.g., the +x direction side) relative to the first folding axis 241'. For example, the third housing portion 230' may be rotatably connected to the other side of the second housing portion 220' (e.g., the +x direction side) relative to the second folding axis 242'. For example, the hinge portion 250' may include a first hinge portion 251' that rotatably connects one side of the second housing portion 220' to one side of the first housing portion 210', and a second hinge portion 252' that rotatably connects the third housing portion 230' to the other side of the second housing portion 220'.

[0088] Figure 2b The fourth state 204 can indicate a fully deployed state, wherein the first housing portion 210', the second housing portion 220', and the third housing portion 230' are fully deployed. For example, the fourth state 204 can correspond to... Figure 2a The electronic device 101 is in a first state 201. For example, in a fourth state, the flexible display 271' may be substantially flat. For example, in a fourth state 204, the second housing portion 220' may be located between the first housing portion 210' and the third housing portion 230'.

[0089] Figure 2b The fifth state 205 can indicate a state where at least one of the first angle 261' or the second angle 262' is less than a flat angle. For example, the electronic device 101' can change from the fourth state 204 to the fifth state 205 when the first housing portion 210' rotates relative to the second housing portion 220' or the third housing portion 230' rotates relative to the second housing portion 220'. For example, the fifth state 205 can be referred to as an inward folded state, a sub-extended state (or sub-folded state), an intermediate state, and / or a recessed state. In the fifth state 205, a portion of the flexible display 271' can be folded.

[0090] Figure 2bThe sixth state 206 can indicate a fully folded state, wherein the first housing portion 210', the second housing portion 220', and the third housing portion 230' are fully folded. For example, in the sixth state 206, the first angle 261' can be substantially approximately 360 degrees, and the second angle 262' can be substantially approximately 0 degrees. For example, the sixth state 206 can be referred to as a fully folded state and / or a closed state. For example, in the sixth state 206, a portion of the flexible display 271' can be exposed to the outside of the foldable housing 200'. For example, in the sixth state 206, of the portions of the flexible display 271' disposed on the first housing portion 210', the second housing portion 220', and the third housing portion 230', only the portion of the flexible display 271' disposed on the third housing portion 230' can be exposed to the outside.

[0091] Will Figure 2a The second state 202 and the third state 203 with Figure 2b Comparing the fifth state 205 and the sixth state 206, the foldable shells 200 and 200' can be folded in different ways. For example, as... Figure 2a As shown, the second housing portion 220 and the third housing portion 230 can cover the front surface (e.g., in the +z direction) relative to the intermediate first housing portion 210. For example, the second housing portion 220 can rotate counterclockwise relative to the first housing portion 210. For example, the third housing portion 230 can rotate clockwise relative to the first housing portion 210. Figure 2a In the case of the structure of the foldable housing 200 shown, in the fully folded state (e.g., third state 203), a portion of the flexible display 271 can be covered by the foldable housing 200. From the perspective of the second housing portion 220 and the third housing portion 230 folding inward relative to the first housing portion 210 located in the middle, the second housing portion 220 and the third housing portion 230 can be referred to as an inward folding structure.

[0092] like Figure 2b As shown, the first housing portion 210' and the third housing portion 230' can overlap with respect to the intermediate second housing portion 220' in different directions. For example, the first housing portion 210' can cover the rear surface (e.g., in the -z direction) relative to the second housing portion 220'. For example, the third housing portion 230' can cover the front surface (e.g., in the +z direction) relative to the second housing portion 220'. For example, the first housing portion 210' and the third housing portion 230' can rotate counterclockwise relative to the second housing portion 220'. Figure 2bIn the case of the structure of the foldable housing 200' shown, in the fully folded state (e.g., sixth state 206), a portion of the flexible display 271' can be exposed outside the foldable housing 200'. From the perspective of folding the first housing portion 210' outwards relative to the intermediate second housing portion 220', the first housing portion 210' can be referred to as an outward folding structure. From the perspective of folding the third housing portion 230' inwards relative to the intermediate second housing portion 220', the third housing portion 230 can be referred to as an inward folding structure.

[0093] Figure 3a This is a block diagram of an electronic device according to an embodiment. Figure 3b and Figure 3c A foldable housing of an electronic device according to various embodiments of the present disclosure is shown.

[0094] Reference Figure 3a The electronic device 101 according to the embodiment may include at least one processor 330, a wireless communication circuit 340, a first antenna 351, a filter circuit 360 and / or a second antenna 352.

[0095] For example, at least one processor 330 may include an application processor (AP) (e.g., Figure 1 The main processor 121) or communication processor (CP) (e.g., Figure 1 At least one of the auxiliary processors 123. For example, the wireless communication circuit 340 may include a radio frequency (RF) transceiver 341 and a radio frequency front end (RFFE) 342.

[0096] At least one processor 330 can generate a baseband signal. At least one processor 330 can control an RF transceiver 341 to process the generated baseband signal. At least one processor 330 can control an RF transceiver 341 to transmit a transmission signal via a first antenna 351 and a second antenna 352. At least one processor 330 can control an RF transceiver 341 to transmit a transmission signal in a frequency band capable of communicating with external electronic devices.

[0097] For example, RF transceiver 341 may be implemented as a single chip (e.g., an RFIC chip) or as part of a single package. RF transceiver 341 may include a digital-to-analog converter (DAC) for converting digital signals to analog signals. RF transceiver 341 may include a mixer and an oscillator (e.g., a local oscillator (LO)) for up-conversion. RF transceiver 341 may convert baseband signals generated by at least one processor 330 into RF signals. In embodiments, RF transceiver 341 may include an analog-to-digital converter (ADC) for converting analog signals to digital signals. RF transceiver 341 may include a mixer and an oscillator for down-conversion. RF transceiver 341 may convert RF signals received from the first antenna 351 and the second antenna 352 into baseband signals for processing by at least one processor 330.

[0098] For example, RFFE 342 may include a first RFFE 343 for the first antenna 351 and / or a second RFFE 344 for the second antenna 352. For example, the first RFFE 343 and the second RFFE 344 may include multiple components electrically connected between the RF transceiver 341 and the antennas (e.g., the first antenna 351 and the second antenna 352). For example, the first RFFE 343 and the second RFFE 344 may include, but are not limited to, components such as, for example, couplers, power amplifiers (PAs), low-noise amplifiers (LNAs), switching circuitry, and / or duplexers.

[0099] The first antenna 351 and the second antenna 352 can be used to transmit and / or receive signals in a specified frequency band. For example, electronic device 101 can use the first antenna 351 and the second antenna 352 to implement diversity and / or multiple-input multiple-output (MIMO) functions. For example, the first antenna 351 can operate as a primary antenna, and the second antenna 352 can operate as a diversity antenna. However, this disclosure is not limited thereto. For example, besides Figure 3a In addition to the first antenna 351 and the second antenna 352 shown, the electronic device 101 may also include one or more additional antennas.

[0100] Figure 3b The electronic device 101 shown can correspond to Figure 2a The electronic device 101 shown. Figure 3c The electronic device 101' shown can correspond to Figure 2b The electronic device 101' shown is shown.

[0101] Reference Figure 3b In the first state 301 where the first housing portion 210, the second housing portion 220, and the third housing portion 230 are deployed (e.g., Figure 2aIn the first state 201, the first housing portion 210 may be located between the second housing portion 220 and the third housing portion 230. In the third state 302, where the first housing portion 210, the second housing portion 220, and the third housing portion 230 are folded (e.g., ...), Figure 2a In the third state 203), the second housing portion 220 can be located between the first housing portion 210 and the third housing portion 230.

[0102] refer to Figure 3c In the fourth state 303, where the first housing portion 210', the second housing portion 220', and the third housing portion 230' are deployed (e.g., Figure 2b In the fourth state 240), the second housing portion 220' may be located between the first housing portion 210' and the third housing portion 230'. In the sixth state 304, where the first housing portion 210', the second housing portion 220', and the third housing portion 230' are folded (e.g., ...), Figure 2b In the sixth state (206), the second housing portion 220' may be located between the first housing portion 210' and the third housing portion 230'. Figure 3c Other components of the electronic device 101' shown can be connected with Figure 3b The components of the electronic device 101 shown are basically the same, except for the folding structure of the foldable housing 200'.

[0103] The electronic device (101, 101') according to the embodiment can be configured to communicate with an external electronic device using an antenna. For example, a radiator for transmitting and / or receiving signals can be formed along a portion of the side surface of the foldable housing (200, 200'). For example, the side surface of the foldable housing (200, 200') may include a plurality of conductive portions and a plurality of non-conductive portions. At least some of the plurality of conductive portions can be transmitted from a wireless communication circuit (e.g., Figure 3a The wireless communication circuit 340 is fed to operate as a radiator for transmitting and / or receiving signals. Multiple non-conductive portions can be configured to separate the conductive portion operating as a radiator from the other conductive portions.

[0104] Reference Figure 3bThe first housing portion 210 may include a first side outer surface 211 perpendicular to the folding axis (e.g., the first folding axis 241 and / or the second folding axis 242). For example, the second housing portion 220 may include a second side outer surface 221 perpendicular to the folding axis. For example, the third housing portion 230 may include a third side surface 231 perpendicular to the folding axis. For example, the first side outer surface 211, the second side outer surface 221, and the third side surface 231 may at least partially form the side surface of the upper end (e.g., in the +y direction) of the foldable housing 200. However, this disclosure is not limited thereto. For example, the first side outer surface 211, the second side outer surface 221, and the third side surface 231 may at least partially form the side surface of the lower end (e.g., in the -y direction) of the foldable housing 200.

[0105] The first outer surface 211 may include a first conductive portion 310. For example, the first conductive portion 310 may be formed at least partially along the first outer surface 211. The first conductive portion 310 may be formed between a first non-conductive portion 421 and a second non-conductive portion 422 in the first outer surface 211. For example, the first conductive portion 310 may include a first feed point 311 electrically connected to a wireless communication circuit 340 and a first ground point 312 electrically connected to ground of the electronic device 101. When a feed signal is provided from the wireless communication circuit 340 to the first feed point 311, the first conductive portion 310 may operate as a radiator, forming an electromagnetic field for transmitting and / or receiving wireless signals. For example, an antenna including at least a portion of the first conductive portion 310 (e.g., Figure 3a The first antenna 351 can be used as an antenna for transmitting and / or receiving signals in a specified frequency band (e.g., about 0.93 GHz). For example, the ground terminal of the electronic device 101 electrically connected to the first ground point 312 may include a support member, which is a conductive plate disposed inside the foldable housing 200, but this disclosure is not limited thereto.

[0106] Electronic device 101 may include a plurality of antennas for implementing communication diversity. For example, the third side surface 231 may include a third conductive portion 320. For example, the third conductive portion 320 may be formed at least partially along the third side surface 231. The third conductive portion 320 may be formed between a third non-conductive portion 423 and a fourth non-conductive portion 424 in the third side surface 231. For example, the third conductive portion 320 may include a second feed point 321 electrically connected to a wireless communication circuit 340 and a second ground point 322 electrically connected to a ground terminal of electronic device 101. For example, an antenna including at least a portion of the third conductive portion 320 (e.g., Figure 3aThe second antenna 352 can be used as an antenna for transmitting and / or receiving signals in a specified frequency band (e.g., about 0.93 GHz). The electronic device 101 according to an embodiment can achieve communication diversity by transmitting and / or receiving signals via the first antenna 351 and the second antenna 352. Figure 3b As shown, in the third state 302 where the electronic device 101 is fully folded, the second outer surface 221 may be located between the first outer surface 211 and the third outer surface 231. For example, in this fully folded state of the electronic device 101, the second outer surface 221 is close to the first conductive portion 310 and / or the third conductive portion 320, which operate as radiators, and therefore the second outer surface 221 may affect the communication performance of the electronic device 101. For example, the second outer surface 221 may affect the efficiency of an antenna (e.g., the first antenna 351) that includes at least a portion of the first conductive portion 310 and / or the efficiency of an antenna (e.g., the second antenna 352) that includes at least a portion of the third conductive portion 320.

[0107] For example, a current can be formed along the second outer surface 221. If the direction of the current flowing along the second outer surface 221 is opposite to the direction of the radiated current flowing along the first conductive portion 310 and / or the third conductive portion 320, it may cause some reduction in the efficiency of the first antenna 351 and / or the second antenna 352.

[0108] The current formed on the second outer surface 221 may cause parasitic effects. For example, the second outer surface 221 may include a second conductive portion 370, which comprises a conductive material (e.g., a metal). The second conductive portion 370 may be formed between a fifth non-conductive portion 425 and a sixth non-conductive portion 426 in the second outer surface 221. The flow of current along the second conductive portion 370, which is a conductor, can cause parasitic resonance by forming virtual impedances such as resistance, inductance, and / or capacitance around the first conductive portion 310 and / or the third conductive portion 320, which operates as a radiator. When the frequency characteristics of the parasitic resonance correspond to or are similar to the frequency characteristics of the first antenna 351 and / or the second antenna 352, signals in the frequency band transmitted and / or received by the first antenna 351 and / or the second antenna 352 may be interfered with by the parasitic resonance, thereby reducing the efficiency of the first antenna 351 and / or the second antenna 352. For example, the operating frequencies of the first antenna 351 and / or the second antenna 352 may include signals with a frequency of approximately 0.93 GHz, and the parasitic resonant frequency caused by the structure of the foldable housing 200 may be approximately 1.1 GHz. However, this is not a limitation. The parasitic resonances generated by the structure of the foldable housing 200 may lead to a reduction in the efficiency of the first antenna 351 and / or the second antenna 352.

[0109] The electronic device 101 according to the embodiment may include filter circuitry for reducing the efficiency degradation of the first antenna 351 and / or the second antenna 352 (e.g., Figure 3a (Filter circuit 360). For example, filter circuit 360 may be electrically connected to a portion 222 in the second outer surface 221. For example, filter circuit 360 may be disposed on a printed circuit board disposed inside the second housing portion 220. For example, filter circuit 360 may be electrically connected to a portion 222 of the second outer surface 221 via a conductive connection member (e.g., a C-clamp).

[0110] For example, the filter circuit 360 can electrically connect the second outer surface 221 to ground. Since a portion 222 of the second outer surface 221 of the filter circuit 360 is electrically connected to ground, the flow of current flowing along the second outer surface 221 can be regulated. For example, the direction of the current can be adjusted according to the position of the portion 222. For example, the portion 222 electrically connected to the filter circuit 360 can be determined such that the direction of the current flowing along the second outer surface 221 corresponds to the direction of the radiated current formed along the first conductive portion 310 and / or the third conductive portion 320. For example, the portion 222 can be located on the path through which the current forming the parasitic resonance is sent to the second outer surface 221, thereby regulating the direction of the current formed along the second outer surface 221 and providing the current to ground.

[0111] The portion 222 to which the first feed point 311, the first ground point 312, the second feed point 321, the second ground point 322, and the filter circuit 360 are electrically connected can be located in a segmented structure of the foldable housing 200 formed by multiple conductive and multiple non-conductive portions. For example, the first feed point 311 and the first ground point 312 can be located in the first conductive portion 310 formed between the first non-conductive portion 421 and the second non-conductive portion 422. For example, the second feed point 321 and the second ground point 322 can be located in the third conductive portion 320 formed between the third non-conductive portion 423 and the fourth non-conductive portion 424. For example, portion 222 can be located in the second conductive portion 370 formed between the fifth non-conductive portion 425 and the sixth non-conductive portion 426.

[0112] For example, filter circuit 360 can be configured to allow signals in the parasitic resonance band caused by the structure of foldable housing 200 to pass through. Filter circuit 360 can be configured to allow signals corresponding to a predefined frequency range to pass through. The predefined frequency range may include the parasitic resonance frequency. For example, filter circuit 360 may include a bandpass filter configured to allow signals in the frequency band of the parasitic resonance frequency (e.g., about 1.1 GHz) caused by the structure of foldable housing 200 to pass through, but is not limited thereto. For example, the bandpass filter may be an LC filter including a capacitor and / or an inductor. For example, when filter circuit 360 allows signals in the parasitic resonance band to pass through, interference from parasitic resonance to the operating frequencies of the first antenna 351 and / or the second antenna 352 can be reduced. Because the filter circuit 360 is configured to allow signals in the parasitic resonant frequency to pass through, signals in the frequency band (e.g., about 0.93 GHz) transmitted and / or received by the first antenna 351, which includes at least a portion of the first conductive portion 310, and / or the second antenna 352, which includes at least a portion of the third conductive portion 320, may not be provided to the second conductive portion 370. From the perspective of the filter circuit 360 blocking signals in the first antenna 351 and / or the second antenna 352 at operating frequencies (e.g., about 0.93 GHz) that are different from the predetermined frequency range (e.g., about 1.1 GHz), the filter circuit 360 can be used as a notch filter at the operating frequency.

[0113] For example, there may be one or more filter circuits 360. For example, electronic device 101 may include another filter circuit electrically connected to another point on the second side outer surface 221. When various parasitic resonances caused by the foldable structure are present, electronic device 101 may include one or more other filter circuits for allowing the signal at each parasitic resonant frequency to pass through.

[0114] The above Figure 3b The description of the electronic device 101 can be applied in a substantially similar manner to... Figure 3c The electronic device 101' shown is shown.

[0115] See Figure 3cThe foldable housing 200' may include a first outer surface 211', a second outer surface 221', and a third outer surface 231'. For example, the first outer surface 211' may include a first conductive portion 310' formed between a first non-conductive portion 421' and a second non-conductive portion 422'. For example, the first conductive portion 310' may include a first feed point 311' electrically connected to the wireless communication circuit 340 and a first ground point 312' electrically connected to the ground of the electronic device 101'. For example, the third outer surface 231' may include a third conductive portion 320' formed between a third non-conductive portion 423' and a fourth non-conductive portion 424'. For example, the third conductive portion 320' may include a second feed point 321' electrically connected to the wireless communication circuit 340 and a second ground point 322' electrically connected to the ground of the electronic device 101'. For example, the second outer surface 221' may include a second conductive portion 370' formed between a fifth non-conductive portion 425' and a sixth non-conductive portion 426'. For example, portion 222' electrically connected to filter circuit 360 may be located in second conductive portion 370'. The following description of electronic device 101 can be applied in substantially the same manner. Figure 3c The electronic device 101' shown is shown.

[0116] Figure 4a An example of current formed on the side surface of an electronic device excluding filter circuitry is shown. Figure 4b An example of a current formed on the side surface of an electronic device including a filter circuit, according to an embodiment, is shown.

[0117] Reference Figure 4a and Figure 4b The electronic device 101 may include a first conductive portion 310 formed along at least a portion of a first outer surface 211, a second conductive portion 370 formed along at least a portion of a second outer surface 221, and a third conductive portion 320 formed along at least a portion of a third outer surface 231. In the fully folded state of the electronic device 101, the second outer surface 221 may be located between the first outer surface 211 and the third outer surface 231. For example, in the folded state of the first housing portion 210, the second housing portion 220, and the third housing portion 230, the second outer surface 221 may overlap with the first outer surface 211 and / or the third outer surface 231.

[0118] Electronic device 101 may include a first antenna and / or a second antenna. For example, the first antenna may include at least a portion of a first conductive portion 310. For example, the second antenna may include at least a portion of a third conductive portion 320. For example, in the folded state of the first housing portion 210, the second housing portion 220, and the third housing portion 230, the first housing portion 210 and the third housing portion 230 may be located outside electronic device 101. The first antenna may include at least a portion of the first conductive portion 310 formed in the first housing portion 210 located outside electronic device 101. For example, the second antenna may include at least a portion of the third conductive portion 320 formed in the third housing portion 230 located outside electronic device 101.

[0119] Figure 4a States 401 and 402 illustrate that when a feed is applied to the first conductive portion 310 in the fully folded state, without the filter circuitry (e.g., Figure 3a The current formed on the side surface of the electronic device 101 of the filter circuit 360. For example, Figure 4a State 401 illustrates the flow 401a of radiated current that forms an electromagnetic field for transmitting and / or receiving signals of the specified frequency when a signal of a specified frequency is fed to the first conductive portion 310. For example, Figure 4a State 402 shows the flow 402a of current that produces a parasitic resonance at a frequency different from the specified frequency. Figure 4a States 403 and 404 illustrate the current formed on the side surface of the electronic device 101, excluding the filter circuit 360, when a feed is applied to the third conductive portion 320 in the fully folded state. For example, Figure 4a State 403 illustrates the flow 403a of radiated current that generates an electromagnetic field for transmitting and / or receiving signals of the specified frequency when a signal of a specified frequency is fed to the third conductive portion 320. For example, Figure 4a State 404 shows the flow of current 404a that forms a parasitic resonance different from the specified frequency.

[0120] For example, the wireless communication circuit 340 may be configured to transmit and / or receive signals at a specified frequency (e.g., about 0.93 GHz) via a first antenna and / or a second antenna. For example, the wireless communication circuit 340 may supply power to a first feed point of the first conductive portion 310 (e.g., Figure 3b The first feed point 311) and / or the second feed point of the third conductive portion 320 (e.g., Figure 3b The second feed point 321) is fed to transmit and / or receive signals of a specified frequency.

[0121] Reference Figure 4aIn state 401, when power is supplied to the first feed point 311, a flow 401a of radiated current forming an electromagnetic field for transmitting and / or receiving signals in a specified frequency band can be formed along the first conductive portion 310. For example, the flow 401a of radiated current can be formed in a first direction 411. When the flow 401a of radiated current is formed along the first conductive portion 310, due to the relative potential difference caused by the radiated current, a flow 401b of reverse current flowing in a second direction 412 opposite to the first direction 411 can be formed along the second outer surface 221. The flow 401b of reverse current may cause energy loss in the radiated current, thereby degrading the efficiency of the first antenna.

[0122] Reference Figure 4a In state 402, the flow 402a of the current forming parasitic resonance can be formed from the end of the third conductive portion 320, which has a strong electromagnetic field, to the end of the first conductive portion 310. For example, the flow 402a of the current forming parasitic resonance can flow from the third conductive portion 320 to the first conductive portion 310 through the second side outer surface 221. For example, the current 402a can be formed from a portion of the third side surface 231 including the third non-conductive portion 423, pass through a portion of the second side outer surface 221 including the fifth non-conductive portion 425, and reach a portion of the first side outer surface 211 including the first non-conductive portion 421. The current 402a can cause the generation of an electromagnetic field that forms parasitic resonance.

[0123] Reference Figure 4a When power is fed to the second feed point 321, a radiation current flow 403a can be formed along the third conductive portion 320. This radiation current forms an electromagnetic field for transmitting and / or receiving signals in a specified frequency band. For example, the radiation current flow 403a can be formed in a first direction 411. When the radiation current flow 403a is formed along the third conductive portion 320, a reverse current flow 403b can be formed along the second outer surface 221 in a second direction 412 opposite to the first direction 411. The reverse current flow 403b may cause energy loss in the radiation current, thereby degrading the efficiency of the second antenna.

[0124] refer to Figure 4aIn state 404, a current flow 404a that generates parasitic resonance can be formed from the end of the first conductive portion 310, which has a strong electromagnetic field, to the end of the third conductive portion 320. For example, the current flow 404a that generates parasitic resonance can flow from the first conductive portion 310 through the second side outer surface 221 to the third conductive portion 320. For example, the current 404a can be provided from a portion of the first side outer surface 211, which includes the first non-conductive portion 421, through a portion of the second side outer surface 221, which includes the fifth non-conductive portion 425, to a portion of the third side surface 231, which includes the third non-conductive portion 423. The electromagnetic field that generates parasitic resonance can be caused by the current 404a. For example, when the parasitic resonance frequency (e.g., 1.1 GHz) corresponds to or is similar to a specified frequency, the signal at the parasitic resonance frequency may interfere with the first antenna and / or the second antenna, thereby causing degradation of the efficiency of the first antenna and / or the second antenna.

[0125] Reference Figure 4b When the electronic device 101 includes a filter circuit that electrically connects the second outer surface 221 to ground (e.g., Figure 3a When the filter circuit (360) is used, the degradation of communication performance caused by reverse current and parasitic resonance can be reduced.

[0126] Figure 4b States 405 and 406 illustrate the current formed on the side surface of the electronic device 101, including the filter circuit 360, when the first conductive portion 310 is powered in a fully folded state. For example, Figure 4b State 405 illustrates the flow 405a of radiated current forming an electromagnetic field for transmitting and / or receiving signals of the specified frequency when a signal of a specified frequency is fed to the first conductive portion 310. For example, Figure 4b State 406 shows the flow 406a of current that forms a parasitic resonance different from the specified frequency. Figure 4b States 407 and 408 illustrate the situation when the third conductive portion 320 is powered in a fully folded state, in the presence of a filter circuit (e.g., Figure 3a The current formed on the side surface of the electronic device 101 of the filter circuit 360. For example, Figure 4b State 407 illustrates the flow 407a of radiated current that forms an electromagnetic field for transmitting and / or receiving signals of the specified frequency when a signal of a specified frequency is fed to the third conductive portion 320. For example, Figure 4b State 408 shows the flow 408a of current that forms a parasitic resonance different from the specified frequency.

[0127] Reference Figure 4bIn state 405, when power is fed to the first feed point 311, a flow 405a of radiated current forming an electromagnetic field for transmitting and / or receiving signals in a specified frequency band can be formed along the first conductive portion 310. For example, the flow 405a of radiated current can be formed in the first direction 411. For example, when the flow 405a of radiated current is formed along the first conductive portion 310, the flow 405b of current formed on the outer surface 221 on the second side can be guided in the first direction 411 by the filter circuit 360. (Refer to...) Figure 4b In state 407, when power is fed to the second feed point 321, a flow 407a of radiated current can be formed along the third conductive portion 320 to form an electromagnetic field for transmitting and / or receiving signals in a specified frequency band. For example, the flow 407a of radiated current can flow in the first direction 411. For example, when the flow 407a of radiated current is formed along the third conductive portion 320, the flow 407b of current formed on the outer surface 221 on the second side can be guided in the first direction 411 by the filter circuit 360.

[0128] The filter circuit 360 can be controlled by electrically connecting the second outer surface 221 to ground, such that the phase of the current formed on the second outer surface 221 is the same as the phase of the current formed on the first conductive portion 310 and / or the third conductive portion 320. For example, when the currents 405a and 407a formed in the second outer surface 221 flow in the same direction as the currents 405b and 407b formed in the third conductive portion 320, energy loss due to reverse current can be reduced.

[0129] Reference Figure 4b The current flow 406a that forms the parasitic resonance can be formed from the first conductive portion 310 to the second outer surface 221. When the current flow 406a that forms the parasitic resonance is formed from the first conductive portion 310 to the second outer surface 221, the current flow 406a can be formed along the second outer surface 221 by a filter circuit 360 that electrically connects the second outer surface 221 to ground. For example, a portion 222 of the second outer surface 221 that is electrically connected to the filter circuit 360 can be located on the path through which the current flow 406a that forms the parasitic resonance is provided from the first conductive portion 310 to the second outer surface 221. When the portion 222 is located on the path, the current 406a can be formed along the second outer surface 221 without flowing through the second outer surface 221 to the third conductive portion 320.

[0130] Reference Figure 4bIn state 408, the flow 408a of the parasitic resonant current can form from the third conductive portion 320 to the second outer surface 221. For example, when the flow 408a of the parasitic resonant current forms from the third conductive portion 320 to the second outer surface 221, the current flow 408a can be formed along the second outer surface 221 by a filter circuit 360 electrically connecting the second outer surface 221 to ground. For example, a portion 222 of the second outer surface 221 electrically connected to the filter circuit 360 can be located on the path through which the flow 408a of the parasitic resonant current is supplied from the third conductive portion 320 to the second outer surface 221. When the portion 222 is located on the path, the current 408a can form along the second outer surface 221 without flowing through the second outer surface 221 to the first conductive portion 310.

[0131] The filter circuit 360 can be configured to allow signals corresponding to a predefined frequency range to pass through. For example, the filter circuit 360 may include a bandpass filter configured to allow signals at parasitic resonant frequencies to pass through. For example, the filter circuit 360 may include a capacitor having a capacitance value for allowing signals at parasitic resonant frequencies to pass through and / or an inductor having an inductance value for allowing signals at parasitic resonant frequencies to pass through. For example, the filter circuit 360 may include a capacitor having a value of about 3 pF and an inductor having a value of about 6.8 nF to allow signals with a frequency of about 1.1 GHz to pass through, but this disclosure is not limited thereto.

[0132] like Figure 4b As shown, when the electronic device 101 includes a filter circuit 360 electrically connected to a portion 222 in the second outer surface 221 to electrically connect the second outer surface 221 to ground, the reverse current formed by radiated currents of signals transmitted and / or received through the first antenna and / or the second antenna at frequencies (e.g., 0.93 GHz) can be improved. For example, the filter circuit 360 can be configured to allow signals at parasitic resonant frequencies to pass through and block signals at operating frequencies, thereby reducing the reduction in efficiency of the first antenna and / or the second antenna due to signals at parasitic resonant frequencies.

[0133] Figure 5a The side surface of an electronic device according to a comparative example is shown. Figure 5b A side surface of an electronic device according to an embodiment is shown. Figure 5c It is a graph representing the efficiency of the antenna.

[0134] refer to Figure 5aThe electronic device 500 according to the comparative example may include a first antenna and a second antenna. The first antenna includes a first conductive portion 510, and the second antenna includes a third conductive portion 520. For example, the first conductive portion 510 may include a first feed point 511 and a first ground point 512. For example, the third conductive portion 520 may include a second feed point 521 and a second ground point 522. For example, the positions of the first feed point 511 and the first ground point 512 may not be aligned with the positions of the second feed point 521 and the second ground point 522. For example, the first feed point 511 and the first ground point 512 may be closer to the first hinge portion 551 in the first hinge portion 551 and the second hinge portion 552. For example, the second feed point 521 and the second ground point 522 may be closer to the second hinge portion 552 in the first hinge portion 551 and the second hinge portion 552.

[0135] Reference Figure 5b The electronic device 101 according to an embodiment may include a first antenna and a second antenna. The first antenna includes a first conductive portion 310, and the second antenna includes a third conductive portion 320. For example, the first conductive portion 310 may include a first feed point 311 and a first ground point 312. For example, the third conductive portion 320 may include a second feed point 321 and a second ground point 322. For example, the positions of the first feed point 311 and the first ground point 312 may be substantially aligned with the positions of the second feed point 321 and the second ground point 322. For example, when the first outer surface 211, the second outer surface 221, and the third outer surface 231 are viewed from the front, the first feed point 311 may be substantially aligned with the second feed point 321. When the first outer surface 211, the second outer surface 221, and the third outer surface 231 are viewed from the front, the first ground point 312 may be substantially aligned with the second ground point 322. For example, the first power supply point 311 and the first grounding point 312 can be symmetrical with respect to the second side outer surface 221 and the second power supply point 321 and the second grounding point 322, respectively.

[0136] refer to Figure 5c The efficiency of the antenna of the electronic device 500 according to the comparative example can be compared with the efficiency of the antenna of the electronic device 101 according to the embodiment. Figure 5c State 501 is shown according to Figure 5a The graph shows the efficiency of the first antenna and the efficiency of the second antenna of the electronic device 500 in the comparative example as a function of frequency. The x-axis of the graph represents frequency (in GHz), and the y-axis represents efficiency (in dB).

[0137] The first graph 5011 of state 501 shows the efficiency of the first antenna in its fully deployed state. The second graph 5012 of state 501 shows the efficiency of the second antenna in its fully deployed state. The third graph 5013 of state 501 shows the efficiency of the first antenna in its fully folded state. The fourth graph 5014 of state 501 shows the efficiency of the second antenna in its fully folded state.

[0138] refer to Figure 5c In state 501, when the electronic device 500 according to the comparative example changes from a fully unfolded state to a fully folded state, the efficiency of the first antenna and the efficiency of the second antenna may decrease. For example, for a signal at a frequency of about 1 GHz, the efficiency of the first antenna may decrease from about -1 dB to about -14 dB depending on the change of state. For example, for a signal at a frequency of about 1 GHz, the efficiency of the second antenna may decrease from about -4 dB to about -14 dB depending on the change of state.

[0139] Figure 5c State 502 is shown according to Figure 5b The graph shows the efficiency of the first antenna and the efficiency of the second antenna of the electronic device 101 in the illustrated embodiment as a function of frequency. The x-axis of the graph represents frequency (in GHz), and the y-axis represents efficiency (in dB).

[0140] The first graph 5021 of state 502 shows the efficiency of the first antenna in its fully deployed state. The second graph 5022 of state 502 shows the efficiency of the second antenna in its fully deployed state. The third graph 5023 of state 502 shows the efficiency of the first antenna in its fully folded state. The fourth graph 5024 of state 502 shows the efficiency of the second antenna in its fully folded state.

[0141] refer to Figure 5c In state 502, when the electronic device 101 according to the embodiment changes from a fully unfolded state to a fully folded state, the efficiency of the first antenna and the efficiency of the second antenna may decrease. For example, for a signal at a frequency of about 1 GHz, the efficiency of the first antenna may decrease from about -2 dB to about -9 dB depending on the change of state. For example, for a signal at a frequency of about 1 GHz, the efficiency of the second antenna may decrease from about -2 dB to about -9 dB depending on the change of state.

[0142] Compare Figure 5cStates 501 and 502 can improve the efficiency degradation of the first and second antennas depending on the state change. For example, the efficiency degradation of the first and second antennas of the electronic device 101 according to the embodiment may be less than the efficiency degradation of the first and second antennas according to the comparative example. For example, in the electronic device 500 according to the comparative example, the efficiency degradation of the first and second antennas may be from about -10 dB to about -13 dB. For example, in the electronic device 101 according to the embodiment, the efficiency reduction of the first and second antennas may be about -7 dB. When the first feed point 311 and the second feed point 321 are substantially aligned and / or the first ground point 312 and the second ground point 322 are substantially aligned, the efficiency degradation of the first and second antennas can be reduced as the electronic device 101 according to the embodiment changes from a fully unfolded state to a fully folded state, and therefore the communication performance degradation of the electronic device 101 can be reduced.

[0143] Figure 6a It is a graph used to identify differences in the radiation efficiency of antennas through filter circuits. Figure 6b It is a graph used to identify differences in the reflection coefficients of antennas through filter circuits.

[0144] Reference Figure 6a and Figure 6b The described electronic device (e.g., Figure 3b The electronic device 101 may have the following characteristics: Figure 3b and Figure 5b The first feed point shown (e.g., Figure 3b The first feed point 311) and the second feed point (e.g., Figure 3b The second feed points 321) are basically aligned with each other and the first ground point (e.g., Figure 3b First grounding point 312) and second grounding point (e.g., Figure 3b The electronic device 101 has a structure in which the second grounding point 322 is basically aligned with each other.

[0145] As described above, the filter circuit according to the embodiment (e.g., Figure 3a The filter circuit 360 can improve the communication performance of the electronic device 101 by reducing the reverse current and allowing signals at parasitic resonant frequencies to pass through. See also... Figure 6a and Figure 6b This improvement in the communication performance of electronic device 101 is observed due to the filter circuit 360.

[0146] Figure 6aThe efficiency of the first and second antennas, depending on whether the filter circuit 360 is included, is shown with the electronic device 101 fully closed. The x-axis of the graph represents frequency (in GHz), and the y-axis represents efficiency (in dB).

[0147] Reference Figure 6a The first graph 601 shows the efficiency of the first antenna of the electronic device 101 including filter circuit 360 according to an embodiment. The second graph 602 shows the efficiency of the second antenna of the electronic device 101 including filter circuit 360 according to an embodiment. The third graph 603 shows the efficiency of the first antenna of the electronic device 101 without filter circuit 360. The fourth graph 604 shows the efficiency of the second antenna of the electronic device 101 without filter circuit 360. For example, the specified frequency of the signal to be transmitted and / or received through the first antenna and / or the second antenna may be approximately 0.93 GHz.

[0148] Comparing the first curve 601 with the third curve 603, for a signal of approximately 0.93 GHz, the efficiency of the first curve 601 can be greater than that of the third curve 603. The parasitic resonant frequency indicated by the first curve 601 can be greater than approximately 1.1 GHz, and the parasitic resonant frequency indicated by the third curve 603 can be approximately 1.1 GHz. For example, as the difference between the specified frequency and the parasitic resonant frequency increases, the interference of parasitic resonance on the antenna may decrease. Therefore, the performance of the first antenna of the electronic device 101 including the filter circuit 360 may be greater than the performance of the first antenna of the electronic device 101 without the filter circuit 360.

[0149] Comparing the second curve 602 with the fourth curve 604, for a signal of approximately 0.93 GHz, the efficiency of the second curve 602 can be greater than that of the fourth curve 604. The efficiency of the signal at the parasitic resonant frequency indicated by the second curve 602 may be less than that of the signal at the parasitic resonant frequency indicated by the fourth curve 604. For example, considering the difference between a specified frequency and the parasitic resonant frequency, and the efficiency of the signal at the parasitic resonant frequency, the performance of the second antenna of the electronic device 101 including the filter circuit 360 may be greater than the performance of the second antenna of the electronic device 101 excluding the filter circuit 360.

[0150] Figure 6b The graph shows the reflection coefficients of the first and second antennas, depending on whether the filter circuit 360 is included, with the electronic device 101 fully closed. The x-axis of the graph represents frequency (in GHz), and the y-axis represents S-parameters (in dB).

[0151] Reference Figure 6bFifth graph 605 shows the reflection coefficient of the first antenna of the electronic device 101 including filter circuit 360 according to an embodiment. Sixth graph 606 shows the reflection coefficient of the second antenna of the electronic device 101 including filter circuit 360 according to an embodiment. Seventh graph 607 shows the reflection coefficient of the first antenna of the electronic device 101 without filter circuit 360. Eighth graph 608 shows the reflection coefficient of the second antenna of the electronic device 101 without filter circuit 360.

[0152] Reference Figure 6b The fifth curve 605 and the sixth curve 606 of the electronic device 101, including the filter circuit 360, can have a smaller reflection coefficient for signals at a specified frequency than the seventh curve 607 and the eighth curve 608. Conversely, the fifth curve 605 and the sixth curve 606 can have a larger reflection coefficient for signals at parasitic resonant frequencies than the seventh curve 607 and the eighth curve 608. For example, since the filter circuit 360 is configured to allow signals at parasitic resonant frequencies to pass through, the electronic device 101 including the filter circuit 360 can reduce interference caused by signals at parasitic resonant frequencies. The communication performance of the electronic device 101 at a specified frequency, including the filter circuit 360, can be improved compared to the communication performance of the electronic device 101 at a specified frequency without the filter circuit 360.

[0153] Figure 7a The second housing portion and the side surface of the foldable housing of the electronic device according to an embodiment are shown. Figure 7b This indicates the efficiency of the first antenna based on the location of a portion of the first antenna. Figure 7c This indicates the efficiency of the second antenna based on the location of a portion of the second antenna. Figure 7d This indicates the efficiency of the first antenna based on the location of a portion of the second region. Figure 7e This indicates the efficiency of the second antenna based on the location of a portion of the second region.

[0154] Figure 7a State 700a schematically shows the electronic device 101 as viewed from above in its fully folded state. For example, when the electronic device 101 is viewed from above, the second housing portion 220 and the first housing portion 210 can be covered by the third housing portion 230. The portion 222 that is electrically connected to the filter circuit 360 shown in state 700a can be located in the second housing portion 220 hidden by the third housing portion 230. Figure 7a State 700b schematically shows the state of the side surface of the electronic device 101 when it is in a fully folded state.

[0155] refer to Figure 7aThe filter circuit 360 can be electrically connected to a portion 222 in the second outer surface 221. The portion 222 in the second outer surface 221 that is electrically connected to the filter circuit 360 can be defined based on the location of the first feed point 311 and the first ground point 312.

[0156] For example, a portion 222 in the second outer surface 221 may correspond to a first region 710 between the first power supply point 311 and the first ground point 312. The structure of portion 222 corresponding to the first region 710 can be described as a structure in which portion 222 is located in a second region 720 in the second outer surface 221 that overlaps with the first region 710, when the first housing portion 210 and the second housing portion 220 are folded. For example, when the side surface of the foldable housing 200 is viewed in the fully folded state of the electronic device 101, portion 222 may be located in a second region 720 between a first virtual straight line 741 extending from the first power supply point 311 toward the second outer surface 221 and a second virtual straight line 742 extending from the first ground point 312 toward the second outer surface 221.

[0157] When the third conductive portion 320 includes a second feed point 321 and a second ground point 322, the second feed point 321 and the second ground point 322 can be substantially aligned with the first feed point 311 and the first ground point 312, respectively. For example, the second feed point 321 can be substantially aligned with the first feed point 311. For example, the second ground point 322 can be substantially aligned with the first ground point 312. For example, the first feed point 311 and the second feed point 321 can be arranged on a first straight line 741. For example, the first ground point 312 and the second ground point 322 can be arranged on a second straight line 742.

[0158] For example, the positions of multiple non-conductive portions located on the first outer surface 211, the second outer surface 221, and the third outer surface 231 can be aligned with each other. For example, the first conductive portion 310 can be located between the first non-conductive portion 421 and the second non-conductive portion 422 on the first outer surface 211. For example, the third conductive portion 320 can be located between the third non-conductive portion 423 and the fourth non-conductive portion 424 on the third outer surface 231. For example, the second outer surface 221 can include a fifth non-conductive portion 425 and a sixth non-conductive portion 426.

[0159] For example, the length of the first conductive portion 310, used as a radiator, can correspond to the length of the third conductive portion 320. Since the length of the radiator affects the frequency characteristics of the antenna (e.g., resonant frequency), the length of the first conductive portion 310 can correspond to the length of the third conductive portion 320 to achieve communication diversity. For example, the first non-conductive portion 751 can be aligned with the third non-conductive portion 423. For example, the second non-conductive portion 422 can be aligned with the fourth non-conductive portion 424. For example, in the fully folded state of the electronic device 101, the first conductive portion 310 formed between the first non-conductive portion 751 and the second non-conductive portion 422 can overlap with the third conductive portion 320 formed between the third non-conductive portion 423 and the fourth non-conductive portion 424. For example, the first ground point 312 can be adjacent to the first non-conductive portion 751. For example, the second ground point 322 can be adjacent to the third non-conductive portion 423.

[0160] For example, in the fully folded state of the electronic device 101, a portion 222 in the second outer surface 221 may correspond to a first region 710 between the first power supply point 311 and the first ground point 312, and a third region 730 between the second power supply point 321 and the second ground point 322. For example, in the fully folded state of the electronic device 101, the second region 720 where the portion 222 is located may overlap with the first region 710 and the third region 730.

[0161] When portion 222 deviates from the second region 720, the effect of the filter circuit 360 in improving the communication performance of the electronic device 101 may be reduced. For example, when portion 222 is located within the second region 720, the flow of current in the second outer surface 221 corresponding to the flow of radiative current flowing along the first conductive portion 310 and / or the third conductive portion 320 can be established more smoothly. For example, when portion 222 is located within the second region 720, portion 222 may be located on the path through which the current forming parasitic resonance flows, thereby more effectively reducing the degradation of communication performance due to parasitic resonance. When portion 222 is located outside the second region 720, the effect of reducing reverse current and the effect of reducing degradation due to parasitic resonance may be reduced.

[0162] Reference Figure 7b and Figure 7c When that part (e.g., Figure 7a Part 222) deviates from the second region (e.g., Figure 7a When in the second region (720), the degradation of the efficiency of the first antenna and the second antenna can be identified.

[0163] Figure 7b The first curve 700-1 shows that when part 222 is located at the first grounding point (e.g., Figure 7aFirst grounding point 312) and second grounding point (e.g., Figure 7a The efficiency of the first antenna is determined by the position corresponding to the second grounding point 322. The portion 222 corresponding to the positions of the first grounding point 312 and the second grounding point 322 can be referred to as the portion 222 located on the second straight line (e.g., Figure 7a The second curve 700-2 shows the situation when part 222 is located at the first feed point (e.g., on the second straight line 742). The second curve 700-2 shows the situation when part 222 is located at the first feed point (e.g., Figure 7a The first feed point 311) and the second feed point (e.g., Figure 7a The efficiency of the first antenna is at the position corresponding to the second feed point 321. For example, the portion 222 at the position corresponding to the first ground point 312 and the second ground point 322 can be referred to as the portion 222 located on the first straight line (e.g., Figure 7a The situation is on the first straight line 741). The third curve diagram 700-3 shows the situation when part 222 is located on the first hinge part (e.g., Figure 7a The first hinge portion 251) and the fifth non-conductive portion (e.g., Figure 7a The efficiency of the first antenna when the fifth non-conductive portion 425 is between. The fourth curve 700-4 shows the efficiency when portion 222 is located between the second region 720 and the second hinge portion (e.g., Figure 7a The efficiency of the first line between the second hinge section 252) and the second hinge section 252.

[0164] Reference Figure 7b When portion 222 deviates from the second region 720, the efficiency of the first antenna may decrease. For example, the efficiency indicated by the first curve 700-1 and the second curve 700-2 may be higher than the efficiency indicated by the third curve 700-3 and the fourth curve 700-4. In the case of the first curve 700-1, the first curve 700-1 indicates the highest efficiency; therefore, when portion 222 is located at the position corresponding to the first ground point 312 and the second ground point 322, the efficiency of the first antenna may be the highest. Referring to the third curve 700-3, when portion 222 deviates from the second region 720, the efficiency of the first antenna may decrease. Referring to the fourth curve 700-4, when portion 222 moves out of the second region 720 and approaches the second hinge portion 252, the resonant frequency of the first antenna may decrease, and the efficiency of the first antenna may decrease. Figure 7b As shown, when the portion 222 electrically connected to the filter circuit 360 is located in the second region 720, the efficiency of the first antenna can be high.

[0165] Figure 7cThe fifth curve 700-5 shows the efficiency of the second antenna when portion 222 is located at a position corresponding to the first grounding point 312 and the second grounding point 322. For example, the portion 222 at the position corresponding to the first grounding point 312 and the second grounding point 322 can be referred to as the case where portion 222 is located on the second straight line 742. The sixth curve 700-6 shows the efficiency of the second antenna when portion 222 is located at a position corresponding to the first feed point 311 and the second feed point 321. For example, the portion 222 at the position corresponding to the first grounding point 312 and the second grounding point 322 can be referred to as the case where portion 222 is located on the first straight line 741. The seventh curve 700-7 shows the efficiency of the second antenna when portion 222 is located between the first hinge portion 251 and the fifth non-conductive portion 425. The eighth curve 700-8 shows the efficiency of the second antenna when portion 222 is located between the second region 720 and the second hinge portion 252.

[0166] Reference Figure 7c When portion 222 deviates from the second region 720, the efficiency of the second antenna may decrease. For example, the efficiency indicated by the fifth curve 700-5 and the sixth curve 700-6 can be higher than the efficiency indicated by the seventh curve 700-7 and the eighth curve 700-8. In the case of the fifth curve 700-5, it shows the highest efficiency; therefore, the efficiency of the second antenna can be highest when portion 222 is located at the position corresponding to the first ground point 312 and the second ground point 322. Referring to the seventh curve 700-7, the efficiency of the second antenna may decrease when portion 222 deviates from the second region 720. Referring to the eighth curve 700-8, when portion 222 deviates from the second region 720 and approaches the second hinge portion 252, the resonant frequency of the second antenna may decrease, and the efficiency of the second antenna may decrease. Figure 7c As shown, when the portion 222 electrically connected to the filter circuit 360 is located in the second region 720, the efficiency of the second antenna can be high.

[0167] For example, as the position of portion 222 changes within the second region 720, the efficiency of the first antenna and / or the second antenna can be altered. For example, assuming... Figure 7a The second straight line 742 shown is positioned at the origin, and it is assumed that the first straight line 741 is positioned 5 units away from the origin. (Refer to...) Figure 7d and 7e As can be seen, the efficiency of the first and second antennas varies depending on the position between the second straight line 742 and the first straight line 741.

[0168] refer to Figure 7dThe first curve 700-9 shows the efficiency of the first day line when part 222 is located at the origin (e.g., on the second line 742). The second curve 700-10 shows the efficiency of the first day line when part 222 is located at a position 1 interval from the origin. The third curve 700-11 shows the efficiency of the first day line when part 222 is located at a position 2 intervals from the origin. The fourth curve 700-12 shows the efficiency of the first day line when part 222 is located at a position 3 intervals from the origin. The fifth curve 700-13 shows the efficiency of the first day line when part 222 is located at a position 4 intervals from the origin. The sixth curve 700-14 shows the efficiency of the first day line when part 222 is located at a position 5 intervals from the origin (e.g., on the first line 741).

[0169] Reference Figure 7e The seventh curve (700-15) shows the efficiency of the second line when part 222 is located at the origin (e.g., on the second line 742). The eighth curve (700-16) shows the efficiency of the second line when part 222 is located at a position 1 interval from the origin. The ninth curve (700-17) shows the efficiency of the second line when part 222 is located at a position 2 intervals from the origin. The tenth curve (700-18) shows the efficiency of the second line when part 222 is located at a position 3 intervals from the origin. The eleventh curve (700-19) shows the efficiency of the second line when part 222 is located at a position 4 intervals from the origin. The twelfth curve (700-20) shows the efficiency of the second line when part 222 is located at a position 5 intervals from the origin (e.g., on the first line 741).

[0170] Reference Figure 7d and Figure 7e When portion 222 is located aligned with the first ground point 312 and / or the second ground point 322, the efficiency of the first antenna and / or the second antenna for a given frequency (e.g., 0.93 GHz) can be maximized. As the position of portion 222 moves away from the alignment with the first ground point 312 and / or the second ground point 322 in the second region 720, the efficiency of the first antenna and / or the second antenna may decrease. For example, since the filter circuit 360 regulates the current formed on the second side outer surface 221 by supplying a current ground terminal from the first conductive portion 310 and / or the third conductive portion 320, the effect of the filter circuit 360 can be enhanced when portion 222 is located between the current-concentrated first ground point 312 and the second ground point 322. However, the location of the filter circuit 360 is not limited to between the first ground point 312 and the second ground point 322, and when the filter circuit 360 is located in the second region 720, the communication performance of the electronic device 101 can be improved.

[0171] Figure 8 A side surface of an electronic device according to an embodiment is shown.

[0172] As described above, the second feed point 321 can be substantially aligned with the first feed point 311, and the second ground point 322 can be substantially aligned with the first ground point 312. In addition to the case where the first feed point 311 and the second feed point 321 (or the first ground point 312 and the second ground point 322) are located in a straight line, the term "substantially aligned" can also include the case where the first region 710 and the third region 730 partially overlap each other.

[0173] Reference Figure 8 The first region 710 may partially overlap with the third region 730, but not completely. For example, even when the first feed point 311 and the second feed point 321 are not on a straight line and / or the first ground point 312 and the second ground point 322 are not on a straight line, the first region 710 between the first feed point 311 and the first ground point 312 may partially overlap with the third region 730 between the second feed point 321 and the second ground point 322.

[0174] When the side surface of the foldable housing 200 is viewed in the fully folded state of the electronic device 101, portion 222 may be located between a first virtual straight line 810 extending from the first ground point 312 toward the second side outer surface 221 and a second virtual straight line 820 extending from the second ground point 322 toward the second side outer surface 221. For example, portion 222 may be located between a first point 830 on the second side outer surface 221 aligned with the first ground point 312 and a second point 840 on the second side outer surface 221 aligned with the second ground point 322. When portion 222 is too far from a non-conductive portion (e.g., the fifth non-conductive portion 425), it may be difficult to control the flow of current by the filter circuit 360; therefore, the position of portion 222 may be restricted between the first and second points. Since portion 222, which is electrically connected to the filter circuit 360, is located between the first and second points, the communication performance of the electronic device 101 can be improved by the filter circuit 360.

[0175] Figure 9a A side surface of an electronic device according to an embodiment is shown. Figure 9b Indicates according to Figure 9a Does the electronic device shown include the efficiency of the first antenna of the filter circuit? Figure 9c The efficiency of the second antenna, whether or not the electronic device shown in Figure 9A includes a filter circuit, is illustrated.

[0176] The electronic device 101 described above shows a structure in which multiple non-conductive portions located on the first outer surface 211, the second outer surface 221, and the third outer surface 231 are aligned with each other, but its structure is not limited thereto. (See reference...) Figure 9a Multiple non-conductive portions in the side surface may be at least partially misaligned.

[0177] Reference Figure 9a The first non-conductive portion 421 can be aligned with the third non-conductive portion 423. For example, the second non-conductive portion 422 can be aligned with the fourth non-conductive portion 424. For example, the fifth non-conductive portion 425 in the second side outer surface 221 can be misaligned with the first non-conductive portion 421 and the third non-conductive portion 423. For example, the sixth non-conductive portion 426 in the second side outer surface 221 can be misaligned with the second non-conductive portion 422 and the fourth non-conductive portion 424. The electrical connections in the second side outer surface 221 are to the filter circuit (e.g., Figure 3a Part 222 of the filter circuit 360 can correspond to the first region 710 between the first feed point 311 and the first ground point 312 and the third region 730 between the second feed point 321 and the second ground point 322.

[0178] Even in Figure 9a In the case of the illustrated electronic device 101, the communication performance of the filter circuit 360 can also be improved. When the first conductive portion 310 and / or the third conductive portion 320 operate as radiators, the direction of the current formed on the second-side outer surface 221 can correspond to the direction of the radiated current formed by the filter circuit 360 on the first conductive portion 310 and / or the third conductive portion 320. For example, the filter circuit 360 can be configured to allow signals at parasitic resonant frequencies to pass through, thereby reducing the degradation of the efficiency of the first antenna and / or the second antenna.

[0179] Reference Figure 9b and Figure 9c Communication performance can be compared based on whether the electronic device 101, which includes at least partially misaligned non-conductive portions, includes a filter circuit 360.

[0180] Reference Figure 9b The first graph 901 represents the efficiency of the first antenna when the electronic device 101 includes the filter circuit 360. The second graph 902 represents the efficiency of the second antenna when the electronic device 101 includes the filter circuit 360. The third graph 903 represents the efficiency of the first antenna when the electronic device 101 does not include the filter circuit 360. The fourth graph 904 represents the efficiency of the second antenna when the electronic device 101 does not include the filter circuit 360. Figure 9b The x-axis of the graph represents frequency (unit: GHz), and the y-axis represents efficiency (unit: dB).

[0181] For example, in a frequency range of approximately 0.9 GHz to approximately 0.99 GHz, the efficiency indicated by the first curve 901 can be greater than the efficiency indicated by the third curve 903. For example, in a frequency range of approximately 0.9 GHz to approximately 0.96 GHz, the efficiency indicated by the second curve 902 can be greater than the efficiency indicated by the fourth curve 904. For example, when the operating frequencies of the first and second antennas are set to approximately 0.93 GHz, the efficiency of the first and second antennas for the operating frequency can be improved by including filter circuitry 360. For example, in the non-conductive portion of the foldable housing 200 that is not at least partially aligned... Figure 9a In the electronic device 101, the filter circuit 360 can be electrically connected to a portion 222 of the second side outer surface 221, thereby improving the communication performance of the electronic device 101.

[0182] Reference Figure 9c The fifth curve 905 shows the reflection coefficient of the first antenna when the electronic device 101 includes the filter circuit 360. The sixth curve 906 shows the reflection coefficient of the second antenna when the electronic device 101 includes the filter circuit 360. The seventh curve 907 shows the reflection coefficient of the first antenna when the electronic device 101 does not include the filter circuit 360. The eighth curve 908 shows the reflection coefficient of the second antenna when the electronic device 101 does not include the filter circuit 360. Figure 9b The x-axis of the graph represents frequency (unit: GHz), and the y-axis represents S-parameters (unit: dB).

[0183] For example, the reflection coefficient indicated by the fifth curve 905 can be less than the reflection coefficient indicated by the seventh curve 907. For example, the reflection coefficient indicated by the sixth curve 906 can be substantially the same as or less than the reflection coefficient indicated by the eighth curve 908, but in the case of the eighth curve 908, when the filter circuit 360 is included, the performance of the second antenna can be higher because the difference between the operating frequency and the parasitic resonant frequency is relatively small. For example, in the cases of the fifth curve 905 and the sixth curve 906, the first and second antennas can have high performance within the operating frequency range because the reflection coefficient does not decrease sharply in the frequency range outside the operating frequency (e.g., from about 0.96 GHz to about 0.97 GHz).

[0184] As described above, the filter circuit 360, which is electrically connected to portion 222 of the second side outer surface 221, can improve the communication performance of the electronic device 101 independently of the structure of multiple non-conductive portions located on the side surface of the foldable housing 200.

[0185] Figure 10aThis is a block diagram of an electronic device according to an embodiment. Figure 10b The communication characteristics of an electronic device via a filter circuit are shown.

[0186] For reference Figure 3a As described, the first antenna 351 and the second antenna 352 can provide diversity and / or MIMO functionality. To provide diversity and / or MIMO functionality, such as... Figure 3a As shown, the first antenna 351 and the second antenna 352 can be electrically connected to the RF transceiver 341, respectively. For example, the first antenna 351 can be connected via a first RFFE (e.g., Figure 3a The first RFFE 343 is electrically connected to the RF transceiver 341. For example, the second RFFE 352 can be connected via the second RFFE (e.g., Figure 3a The second RFFE 344 is electrically connected to the RF transceiver 341. For example, the circuitry between the RF transceiver 341 and the first antenna 351, and between the RF transceiver 341 and the second antenna 352, can be independent of each other to implement diversity and / or MIMO functionality. However, this disclosure is not limited thereto. For example, as... Figure 10a As shown, the electronic device 101 may include a first antenna 351 and a second antenna 352, which are configured to provide the same feed signal through a power branch circuit 345.

[0187] Reference Figure 10a Electronic device 101 may include a power branch circuit 345. For example, the power branch circuit 345 may include a three-port passive component. For example, the power branch circuit 345 may include, but is not limited to, a first port 345a electrically connected to an RF transceiver 341, a second port 345b electrically connected to a first antenna 351, and a third port 345c electrically connected to a second antenna 352. For example, each of the three ports may be connected by a circuit with a 50-ohm impedance. For example, a signal input from the RF transceiver 341 via the first port 345a may be distributed with equal power to be output to the second port 345b and the third port 345c respectively. For example, signals input to the second port 345b and the third port 345c via the first antenna 351 and the second antenna 352 may be combined into a single signal and output to the first port 345a. For example, the power branch circuit 345 may also be referred to as a frequency divider, splitter, and / or coupler. For example, the transmitted signal from the RF transceiver 341 can be distributed by the power branch circuit 345 to feed power to each of the first antenna 351 and the second antenna 352. For example, the received signals received by the first antenna 351 and the second antenna 352 can be combined by the power branch circuit 345 and then provided to the RF transceiver 341.

[0188] For example, when the electronic device 101 includes a power branch circuit 345, the same signal is provided to the first antenna 351 and the second antenna 352, so the phase of the current flowing along the first conductive portion 310 and the phase of the current flowing along the third conductive portion 320 can be the same as each other. When signals of the same phase are provided to the first conductive portion 310 and the third conductive portion 320, the reverse current formed on the second side outer surface 221 can be reduced, thus reducing energy loss due to the reverse current. According to an embodiment, the electronic device 101 including the power branch circuit 345 can also improve communication performance by using a filter circuit 360. For example, the electronic device 101 may include a filter circuit 360 electrically connected to a portion 222 of the second side outer surface 221. For example, the filter circuit 360 may electrically connect the second side outer surface 221 to ground. For example, the filter circuit 360 may be configured to allow signals at parasitic resonant frequencies to pass through, thereby reducing parasitic resonances caused by the structure of the foldable housing 200.

[0189] Reference Figure 10b The electronic device 101 that provides signals of the same phase to the first antenna 351 and the second antenna 352 through the power branch circuit 345 may include a filter circuit 360, thereby having improved communication performance. Figure 10b The first graph 1001 represents the efficiency of the antenna when the electronic device 101 includes the filter circuit 360. Figure 10b The second curve 1002 shows the efficiency of the antenna when the electronic device 101 does not include the filter circuit 360.

[0190] Comparing the first curve 1001 with the second curve 1002, the efficiency of the first curve 1001 can be higher than that of the second curve 1002 in a frequency range of approximately 0.9 GHz to approximately 0.95 GHz. For example, even when signals of the same phase are provided to the first antenna 351 and the second antenna 352, the filter circuit 360 is configured to control the flow of current formed on the second-side outer surface 221 and allow signals in the parasitic resonant frequency to pass through. Therefore, the communication performance of the electronic device 101 including the filter circuit 360 can be higher than that of the electronic device 101 without the filter circuit 360.

[0191] Figure 11a A side surface of an electronic device according to an embodiment is shown. Figure 11b It shows Figure 11a The efficiency of the first and second antennas of the electronic device shown. Figure 11c It shows Figure 11a The reflection coefficients of the first and second antennas of the electronic device shown.

[0192] Reference has been made to electronic devices having a structure in which the flexible display 271 is hidden in its fully folded state (e.g., Figure 3b The electronic device 101 has been described above in the accompanying drawings, but this disclosure is not limited thereto. For example, as Figure 11a As shown, electronic devices (e.g., Figure 3c The electronic device 101' may have a structure in which a portion of the flexible display 271' is exposed in a fully folded state.

[0193] See Figure 11a With the first housing portion 210', the second housing portion 220', and the third housing portion 230' fully folded, a portion of the flexible display 271' may be located outside the foldable housing 200'. For example, the portion of the flexible display 271' located outside the foldable housing 200' may be a portion of the flexible display 271' disposed on the third housing portion 230'. However, this disclosure is not limited thereto. Figure 11a The electronic device 101' shown can be called Figure 2b and 3c The electronic device 101' shown is shown.

[0194] exist Figure 11a In the case of the illustrated electronic device 101', the above description can be applied substantially the same way. For example, the electronic device 101' may include a filter circuit (e.g., ) electrically connected to a portion 222' of the second-side outer surface 221'. Figure 3a (Filter circuit 360). Filter circuit 360 can electrically connect the second side outer surface 221' to ground. For example, filter circuit 360' can be configured to allow signals in parasitic resonant frequencies to pass through, thereby reducing efficiency degradation of the first antenna including at least a portion of the first conductive portion 310' and / or the second antenna including at least a portion of the third conductive portion 320'.

[0195] Figure 11b The graph shown represents the efficiency of the first and second antennas, which depends on the following: Figure 11a Does the electronic device 101' with the shown structure include a filter circuit 360? The x-axis of the graph represents frequency (unit: GHz), and the y-axis represents efficiency (unit: dB). The first graph 1101 shows when... Figure 11a The efficiency of the first antenna is shown when the electronic device 101 includes the filter circuit 360. The second graph 1102 shows the efficiency when... Figure 11a The efficiency of the second antenna is shown when the electronic device 101 includes the filter circuit 360. The third curve 1103 represents the efficiency when... Figure 11a The efficiency of the first antenna when the electronic device 101 shown does not include the filter circuit 360. The fourth curve 1104 shows the efficiency when... Figure 11a The efficiency of the second antenna is shown when the electronic device 101 does not include the filter circuit 360.

[0196] Comparing the first curve 1101 and the third curve 1103, the first curve 1101 exhibits higher efficiency than the third curve 1103 in a frequency range of approximately 0.94 GHz or less. Comparing the second curve 1102 and the fourth curve 1104, the second curve 1102 exhibits higher efficiency than the fourth curve 1104 in a frequency range of approximately 0.94 GHz or less. For example, when the electronic device 101 includes a filter circuit 360, the direction of the current formed on the second-side outer surface 221 of the filter circuit 360 can correspond to the direction of the radiated current formed on the first conductive portion 310 and / or the third conductive portion 320, thereby reducing energy loss due to reverse current and improving the efficiency of the first and second antennas. For example, since the filter circuit 360 is configured to allow signals in the parasitic resonant frequency to pass through, the efficiency of the first and second antennas can be improved.

[0197] Figure 11c The graph shown represents the curves depending on... Figure 11a The electronic device 101 with the structure shown includes the reflection coefficients of the first and second antennas of the filter circuit 360. The x-axis of the graph represents frequency (in GHz), and the y-axis represents S-parameters (in dB). The fifth graph 1105 shows when... Figure 11a The electronic device 101 shown includes a filter circuit 360, which represents the reflection coefficient of the first antenna. The sixth curve, Figure 1106, shows when... Figure 11a The electronic device 101 shown includes a filter circuit 360, which represents the reflection coefficient of the second antenna. The seventh curve, Figure 1107, shows when... Figure 11a The electronic device 101 shown does not include the filter circuit 360 when the reflection coefficient of the first antenna is displayed. Curve 1108 represents the reflection coefficient of the first antenna when... Figure 11a The electronic device 101 shown does not include the reflection coefficient of the second antenna when the filter circuit 360 is not included.

[0198] Comparing the fifth curve 1105 and the seventh curve 1107, the fifth curve 1105 shows a lower reflection coefficient than the seventh curve 1107 in a frequency range of approximately 0.9 GHz to approximately 1 GHz. Comparing the sixth curve 1106 and the eighth curve 1108, the sixth curve 1106 reveals a lower reflection coefficient than the eighth curve 1108 in a frequency range of approximately 0.9 GHz to approximately 1 GHz. For example, when the electronic device 101 includes the filter circuit 360, the performance of the first antenna and the second antenna can be improved by reducing the reflected power and preventing radiation.

[0199] For example, the positions of multiple non-conductive portions on the side surface of the foldable housing 200 can be varied. For instance, the positions of the non-conductive portions in the first side outer surface 211 (e.g., the first non-conductive portion 421 and / or the second non-conductive portion 422), the non-conductive portions in the second side outer surface 221 (e.g., the fifth non-conductive portion 425 and / or the sixth non-conductive portion 426), and / or the non-conductive portions in the third side surface 231 (e.g., the third non-conductive portion 423 and / or the fourth non-conductive portion 424) can be varied. For example, even if the structure of the side surface of the foldable housing 200 is changed, the communication performance of the filter circuit 360 can be improved. Various foldable structures will be described below.

[0200] Figure 12a A side surface of an electronic device according to an embodiment is shown. Figure 12b It shows Figure 12a The efficiency of the antenna of the electronic device shown.

[0201] Reference Figure 12a The length of the first conductive portion 310 formed in the first outer surface 211 may be different from the length of the third conductive portion 320 formed in the third outer surface 231. For example, the first non-conductive portion 421 in the first outer surface 211 may not be aligned with the third non-conductive portion 423 in the third outer surface 231. For example, the second non-conductive portion 422 in the first outer surface 211 may not be aligned with the fourth non-conductive portion 424 in the third outer surface 231. For example, the fifth non-conductive portion 425 in the second outer surface 221 may be aligned with the first non-conductive portion 421. For example, the sixth non-conductive portion 426 in the second outer surface 221 may be aligned with the second non-conductive portion 422. For example, the length of the first conductive portion 310 formed between the first non-conductive portion 421 and the second non-conductive portion 422 may be longer than the length of the third conductive portion 320 formed between the third non-conductive portion 423 and the fourth non-conductive portion 424. For example, the first feed point 311 and the first ground point 312 of the first conductive portion 310 may be misaligned with the second feed point 321 and the second ground point 322 of the third conductive portion 320, respectively. For example, the first feed point 311 may be misaligned with the second feed point 321. For example, the first ground point 312 may be misaligned with the second ground point 322.

[0202] Figure 12b The curve represents the relationship between the curve and the curve. Figure 12a Does the electronic device 101 shown include the efficiency of the first antenna and the efficiency of the second antenna of the filter circuit 360? (Refer to...) Figure 12b ,when Figure 12aWhen the electronic device 101 shown includes a filter circuit 360, it can improve the efficiency of the first antenna and the second antenna. The x-axis of the graph represents frequency (in GHz), and the y-axis represents efficiency (in dB).

[0203] Reference Figure 12b The first curve 1201 represents when Figure 12a The efficiency of the first antenna is shown when the electronic device 101 includes the filter circuit 360. The second graph 1202 shows the efficiency when... Figure 12a The efficiency of the second antenna is shown when the electronic device 101 includes the filter circuit 360. The third curve 1203 represents the efficiency when... Figure 12a The efficiency of the first antenna when the electronic device 101 shown does not include the filter circuit 360. The fourth curve 1204 shows the efficiency when... Figure 12a The efficiency of the second antenna is shown when the electronic device 101 does not include the filter circuit 360.

[0204] Comparing the first curve 1201 and the third curve 1203, the first curve 1201 can have an efficiency up to approximately 0.5 dB higher than the third curve 1203. Comparing the second curve 1202 and the fourth curve 1204, the second curve 1202 can have an efficiency up to approximately 0.7 dB higher than the fourth curve 1204. For example, independent of the structure of the foldable housing 200, the filter circuit 360 can improve the communication performance of the electronic device 101 by increasing the efficiency of the first and second antennas.

[0205] Figure 13a A side surface of an electronic device according to an embodiment is shown. Figure 13b It shows Figure 13a The efficiency of the antenna of the electronic device shown.

[0206] Reference Figure 13aThe length of the first conductive portion 310 formed in the first outer surface 211 may be different from the length of the third conductive portion 320 formed in the third outer surface 231. For example, the first non-conductive portion 421 in the first outer surface 211 may be aligned with the third non-conductive portion 423 in the third outer surface 231. For example, the second non-conductive portion 422 in the first outer surface 211 may not be aligned with the fourth non-conductive portion 424 in the third outer surface 231. For example, the fifth non-conductive portion 425 in the second outer surface 221 may be aligned with the first non-conductive portion 421. For example, the sixth non-conductive portion 426 in the second outer surface 221 may be aligned with the second non-conductive portion 422. For example, the length of the first conductive portion 310 formed between the first non-conductive portion 421 and the second non-conductive portion 422 may be longer than the length of the third conductive portion 320 formed between the third non-conductive portion 423 and the fourth non-conductive portion 424. However, this disclosure is not limited thereto. For example, the first feed point 311 and the first ground point 312 of the first conductive portion 310 can be aligned with the second feed point 321 and the second ground point 322 of the third conductive portion 320, respectively. For example, the first feed point 311 can be aligned with the second feed point 321. For example, the first ground point 312 can be aligned with the second ground point 322.

[0207] Figure 13b The curve represents the relationship between the curve and the curve. Figure 13a Does the electronic device 101 shown include the efficiency of the first antenna and the efficiency of the second antenna of the filter circuit 360? (Refer to...) Figure 13b ,when Figure 13a When the electronic device 101 shown includes a filter circuit 360, it can improve the efficiency of the first antenna and the second antenna. The x-axis of the graph represents frequency (in GHz), and the y-axis represents efficiency (in dB).

[0208] Reference Figure 13b The first curve 1301 represents when Figure 13a The efficiency of the first antenna when the electronic device 101 shown includes the filter circuit 360. The second graph 1302 shows the efficiency when... Figure 13a The electronic device 101 shown includes a filter circuit 360, which affects the efficiency of the second antenna. The third curve 1303 represents the efficiency when... Figure 13a The efficiency of the first antenna when the electronic device 101 shown does not include the filter circuit 360. The fourth curve 1304 shows the efficiency when... Figure 13a The efficiency of the second antenna is shown when the electronic device 101 does not include the filter circuit 360.

[0209] Comparing the first curve 1301 and the third curve 1303, the first curve 1301 can have an efficiency up to approximately 0.7 dB higher than the third curve 1303. Comparing the second curve 1302 and the fourth curve 1304, the second curve 1302 can have an efficiency up to approximately 0.7 dB higher than the fourth curve 1304. For example, independent of the structure of the foldable housing 200, the filter circuit 360 can improve the efficiency of the first and second antennas, thereby enhancing the communication performance of the electronic device 101.

[0210] Figure 14a A side surface of an electronic device according to an embodiment is shown. Figure 14b It shows Figure 14a The efficiency of the antenna of the electronic device shown.

[0211] Reference Figure 14a Only one non-conductive portion may be located in the first side outer surface 211, the second side outer surface 221, and the third side surface 231. For example, the second non-conductive portion 422 may be located in the first side outer surface 211. For example, the fourth non-conductive portion 424 aligned with the second non-conductive portion 422 may be located in the third side surface 231. For example, the sixth non-conductive portion 426 aligned with the second non-conductive portion 422 may be located in the second side outer surface 221. For example, the first feed point 311 may be aligned with the second feed point 321. For example, the first ground point 312 may be aligned with the second ground point 322. For example, the portion 222 in the second side outer surface 221 may correspond to the region between the first feed point 311 and the first ground point 312, and the region between the second feed point 321 and the second ground point 322.

[0212] Figure 14b The curve represents the relationship between the curve and the curve. Figure 14a Does the electronic device 101 shown include the efficiency of the first antenna and the efficiency of the second antenna of the filter circuit 360? (Refer to...) Figure 14b ,when Figure 14a When the electronic device 101 shown includes a filter circuit 360, it can improve the efficiency of the first antenna and the second antenna. The x-axis of the graph represents frequency (in GHz), and the y-axis represents efficiency (in dB).

[0213] Reference Figure 14b The first curve 1401 represents when Figure 14a The efficiency of the first antenna is shown when the electronic device 101 includes the filter circuit 360. The second graph 1402 shows the efficiency when... Figure 14a The efficiency of the second antenna is shown when the electronic device 101 includes the filter circuit 360. The third curve 1403 represents the efficiency when... Figure 14aThe efficiency of the first antenna when the electronic device 101 shown does not include the filter circuit 360. The fourth curve 1404 shows the efficiency when... Figure 14a The efficiency of the second antenna is shown when the electronic device 101 does not include the filter circuit 360.

[0214] Reference Figure 14b When the electronic device 101 includes the filter circuit 360, the resonant frequency of the first antenna and the resonant frequency of the second antenna can be shifted. For example, the first curve 1401 and the third curve 1403 can have high efficiency in a frequency range from about 0.93 GHz to about 0.95 GHz. For example, the second curve 1402 and the fourth curve 1404 can have high efficiency in a frequency range from about 0.87 GHz to about 0.89 GHz. For example, when the frequency of the signal to be transmitted and / or received through the first antenna and / or the second antenna is about 0.93 GHz, the filter circuit 360 can shift the resonance of the first antenna and the second antenna to the target frequency. For example, the filter circuit 360 can change the frequency characteristics of the first antenna and the second antenna to correspond to a specified frequency, thereby improving the efficiency of the first antenna and the second antenna for signals at the specified frequency.

[0215] Figure 15a A side surface of an electronic device according to an embodiment is shown. Figure 15b The efficiency of a first antenna according to an embodiment is shown based on the location of the feed point and ground point of the electronic device. Figure 15c The efficiency of a second antenna according to an embodiment is shown based on the location of the feed point and ground point of the electronic device.

[0216] As described above, the second feed point 321 can be substantially aligned with the first feed point 311, and the second ground point 322 can be substantially aligned with the first ground point 312. When the foldable housing 200 has an alignment structure, the efficiency of the first antenna including at least a portion of the first conductive portion 310 and the efficiency of the second antenna including at least a portion of the third conductive portion 320 can be very high.

[0217] refer to Figures 15a to 15cWhen the positions of the first feed point 311 and the first ground point 312 are fixed and the positions of the second feed point 321 and the second ground point 322 are moved, the efficiency of the first antenna and the efficiency of the second antenna can vary. For example, in the case of an alignment structure, a third region 730 between the second feed point 321 and the second ground point 322 may at least partially overlap with a first region 710 between the first feed point 311 and the first ground point 312. When at least a portion of the third region 730 overlaps with the first region 710, each of the second feed point 321 and the second ground point 322 may be substantially aligned with the first feed point 311 and the first ground point 312. When the third region 730 is spaced apart from the first region 710, the second feed point 321 and the second ground point 322 may be misaligned and substantially misaligned with the first feed point 311 and the first ground point 312, respectively.

[0218] When the distance between the second feed point 321 and the second ground point 322 is constant, assuming the position where the second ground point 322 is aligned with the first ground point 312 is the origin, the efficiency of the first and second antennas based on moving the second ground point 322 9 from the origin will be described. When the second ground point 322 is located within a first portion 1500a between the origin and the position aligned with the first feed point 311, the second feed point 321 and the second ground point 322 can be substantially aligned with the first feed point 311 and the first ground point 312, respectively. When the second ground point 322 is located within a second portion 1500b between the position aligned with the first feed point 311 and the position spaced 9 from the origin, each of the second feed point 321 and the second ground point 322 may not be substantially aligned with the first feed point 311 and the first ground point 312 and may be misaligned.

[0219] Figure 15b The graph shown represents the curve based on the Figure 15a The graph shows the efficiency of the first antenna as the second grounding point 322 is moved 9 units from the origin. The x-axis of the graph represents frequency (in GHz), and the y-axis represents efficiency (in dB).

[0220] The first curve 1501 shows the efficiency of the first antenna when the second grounding point 322 is located at the origin aligned with the first grounding point 312. The second curve 1502 shows the efficiency of the first antenna when the second grounding point 322 is spaced 1 unit from the origin. The third curve 1503 shows the efficiency of the first antenna when the second grounding point 322 is spaced 2 units from the origin. The fourth curve 1504 shows the efficiency of the first antenna when the second grounding point 322 is spaced 3 units from the origin.

[0221] The fifth curve, 1505, represents the efficiency of the first antenna when the second ground point 322 is spaced 4 from the origin (e.g., when the second ground point 322 is aligned with the first feed point 311). The sixth curve, 1506, represents the efficiency of the first antenna when the second ground point 322 is spaced 5 from the origin. The seventh curve, 1507, represents the efficiency of the first antenna when the second ground point 322 is spaced 6 from the origin. The eighth curve, 1508, represents the efficiency of the first antenna when the second ground point 322 is spaced 7 from the origin. The ninth curve, 1509, represents the efficiency of the first antenna when the second ground point 322 is spaced 8 from the origin. The tenth curve, 1510, represents the efficiency of the first antenna when the second ground point 322 is spaced 9 from the origin.

[0222] The first to fifth curves (1501, 1502, 1503, 1504, 1505) can be described as the efficiency of the first antenna when the second grounding point 322 is located in the first part 1500a. The sixth to tenth curves (1506, 1507, 1508, 1509, 1510) can be described as the efficiency of the first antenna when the second grounding point 322 is located in the second part 1500b.

[0223] Figure 15c The graph shown represents the curve based on the Figure 15a The graph shows the efficiency of the second antenna as it is moved 9 units from the origin to the second grounding point 322. The x-axis of the graph represents frequency (in GHz), and the y-axis represents efficiency (in dB).

[0224] Curve 11 (Figure 1511) shows the efficiency of the second antenna when the second grounding point 322 is located at the origin aligned with the first grounding point 312. Curve 12 (Figure 1512) shows the efficiency of the second antenna when the second grounding point 322 is spaced 1 unit from the origin. Curve 13 (Figure 1513) shows the efficiency of the second antenna when the second grounding point 322 is spaced 2 units from the origin. Curve 14 (Figure 1514) shows the efficiency of the second antenna when the second grounding point 322 is spaced 3 units from the origin.

[0225] Curve 1515 shows the efficiency of the second antenna when the second grounding point 322 is spaced 4 from the origin (e.g., when the second grounding point 322 is aligned with the first feed point 311). Curve 1516 shows the efficiency of the second antenna when the second grounding point 322 is spaced 5 from the origin. Curve 1517 shows the efficiency of the second antenna when the second grounding point 322 is spaced 6 from the origin. Curve 1518 shows the efficiency of the second antenna when the second grounding point 322 is spaced 7 from the origin. Curve 1519 shows the efficiency of the second antenna when the second grounding point 322 is spaced 8 from the origin. Curve 1520 shows the efficiency of the second antenna when the second grounding point 322 is spaced 9 from the origin.

[0226] When the second grounding point 322 is located in the first part 1500a, curves 11 to 15 (1511, 1512, 1513, 1514, 1515) can be referred to as the efficiency of the second antenna. Curves 16 to 20 (1516, 1517, 1518, 1519, 1520) can be referred to as the efficiency of the second antenna when the second grounding point 322 is located in the second part 1500b.

[0227] For a frequency of approximately 0.92 GHz, Figure 15b and Figure 15c The efficiency of the first antenna and the efficiency of the second antenna shown can be referred to Table 1 below.

[0228] Table 1

[0229]

[0230] In Table 1 above, the efficiency balance can be referred to as the ratio of the efficiency of the second line to the efficiency of the first line (e.g., the efficiency of the second line / the efficiency of the first line).

[0231] The electronic device 101 according to the embodiment can use a first antenna and a second antenna to provide communication diversity and / or MIMO. To provide communication diversity and / or MIMO, it may be necessary for the efficiency of the first antenna and the efficiency of the second antenna to correspond to each other. For example, referring to Table 1 above, when the second ground point 322 is located in the second portion 1500b (e.g., when it is spaced 6 from the origin), the efficiency of the first antenna can be higher than when the second ground point 322 is located in the first portion 1500a (e.g., when it is located at the origin). In the above case, the communication diversity and / or MIMO performance may degrade because the efficiency balance according to the efficiency variation of the second antenna is relatively low. Referring to the efficiency balance in Table 1, the efficiency balance can be relatively high when each of the second feed point 321 and the second ground point 322 is substantially aligned with the first feed point 311 and the first ground point 312. For example, efficiency balance can be maximized when the second ground point 322 is located at the origin such that the second feed point 321 is aligned with the first feed point 311 and the second ground point 322 is aligned with the first ground point 312. According to an embodiment, to increase the diversity and / or MIMO performance of the electronic device 101, each of the second feed point 321 and the second ground point 322 can be substantially aligned with the first feed point 311 and the first ground point 312.

[0232] An electronic device 101 is provided. The electronic device 101 may include a foldable housing 200, a wireless communication circuit 340, a first conductive portion 310, and a filter circuit 360. The foldable housing 200 may include a first housing portion 210, a second housing portion 220, and a third housing portion 230. The foldable housing 200 may be configured to be foldable relative to a first folding axis 241 and a second folding axis 242, such that the first housing portion 210, the second housing portion 220, and the third housing portion 230 are stacked relative to each other in a folded state. The wireless communication circuit 340 is used for wireless communication. The first conductive portion 310 may be formed at least partially along a first side outer surface 211 of the first housing portion 210. The first conductive portion 310 may include a feed point 311 electrically connected to the wireless communication circuit 340 and a ground point 312 electrically connected to ground. The filter circuit 360 may be electrically connected to a portion 222 of a second conductive portion 370 in the second side outer surface 221 of the second housing portion 220. The filter circuit 360 can electrically connect the second conductive portion 370 in the second outer surface 221 to ground. In the folded state with the first housing portion 210, the second housing portion 220, and the third housing portion 230 folded, the second housing portion 220 can be located between the first housing portion 210 and the third housing portion 230. In the folded state with the first housing portion 210 and the second housing portion 220 folded, the portion 222 in the second outer surface 221 can correspond to the area between the feed point 311 of the first conductive portion 310 and the ground point 312 of the first conductive portion 310.

[0233] For example, filter circuit 360 can be configured to allow signals corresponding to a predefined resonant frequency range to pass through. The predefined resonant frequency range may include parasitic resonant frequencies associated with the frequencies of signals transmitted or received through the first conductive portion 310. Filter circuit 360 according to an embodiment can be used as a notch filter for signals transmitted and / or received through the first conductive portion 310 by selectively allowing parasitic resonant frequency bands to pass through.

[0234] For example, the electronic device 101 may also include a third conductive portion 320. The third conductive portion 320 may be formed at least partially along a third side surface 231 of the third housing portion 230 perpendicular to the second folding axis 242. The third conductive portion 320 may include a feed point 321 electrically connected to the wireless communication circuit 340 and a ground point 322 electrically connected to ground.

[0235] For example, in the folded state of the first housing portion 210, the second housing portion 220, and the third housing portion 230, the portion 222 of the second conductive portion 370 in the second outer surface 221 may correspond to the region between the feed point 311 of the first conductive portion 310 and the ground point 312 of the first conductive portion 310, and the region between the feed point 321 of the third conductive portion 320 and the ground point 322 of the third conductive portion 320.

[0236] For example, in the folded state where the first housing portion 210 and the third housing portion 230 are folded, the feed point 311 of the first conductive portion 310 can be substantially aligned with the feed point 321 of the third conductive portion 320. In the folded state where the first housing portion 210 and the third housing portion 230 are folded, the ground point 312 of the first conductive portion 310 can be substantially aligned with the ground point 322 of the third conductive portion 320.

[0237] For example, in the folded state where the first housing portion 210 and the third housing portion 230 are folded, the area between the ground point 312 of the first conductive portion 310 and the ground point 322 of the third conductive portion 320 may partially overlap with the area between the ground point 312 of the first conductive portion 310 and the ground point 322 of the third conductive portion 320.

[0238] For example, a portion 222 in the second outer surface 221 may be located between a first point in the second outer surface 221 that is aligned with the grounding point 312 of the first conductive portion 310 and a second point in the second outer surface 221 that is aligned with the grounding point of the third conductive portion 320.

[0239] For example, an antenna including at least a portion of the first conductive portion 310 can be configured to operate as a main antenna for transmitting or receiving signals in a specified frequency band by being fed from the wireless communication circuit 340. An antenna including at least a portion of the third conductive portion 320 can be configured to operate as a diversity antenna for transmitting or receiving signals by being fed from the wireless communication circuit 340.

[0240] For example, in the folded state where the first housing portion 210, the second housing portion 220, and the third housing portion 230 are folded, the first housing portion 210 and the third housing portion 230 may be located outside the electronic device 101.

[0241] For example, filter circuit 360 may include filter circuitry configured to allow a signal corresponding to a parasitic resonant frequency to pass through. The parasitic resonant frequency may be different from the frequency of the signal transmitted or received through the first conductive portion 310.

[0242] For example, in the folded state where the first housing portion 210, the second housing portion 220, and the third housing portion 230 are folded, the second outer surface 221 can overlap with the first outer surface 211.

[0243] For example, in the folded state of the first housing 210, the second housing 220 and the third housing 230, a portion 222 in the second outer surface 221 may be located on the path where the current that forms a parasitic resonance caused by the structure of the foldable housing 200 is supplied to the second outer surface 221.

[0244] For example, the direction of the current formed on the second outer surface 221 can correspond to the direction of the radiation current formed along the first conductive portion 310.

[0245] For example, the electronic device 101 may also include a first hinge portion 251 disposed between the first housing portion 210 and the second housing portion 220, and a second hinge portion 252 disposed between the first housing portion 210 and the third housing portion 230 or between the second housing portion 220 and the third housing portion 230.

[0246] For example, electronic device 101 may also include another filter circuit electrically connected to another portion of the second side outer surface 221.

[0247] An electronic device 101 is provided. The electronic device 101 may include a foldable housing 200, a first conductive portion 310, a filter circuit 360, and a second conductive portion (e.g., Figure 3bThe foldable housing 200 may include a first housing portion 210, a second housing portion 220, and a third housing portion 230. One side of the second housing portion 220 may be rotatably connected to one side of the first housing portion 210 relative to a first folding axis 241. The third housing portion 230 may be rotatably connected to either the other side of the first housing portion 210 or the other side of the second housing portion 220 relative to a second folding axis 242 parallel to the first folding axis 241. The first conductive portion 310 may be formed at least partially along the first side outer surface 211 of the first housing portion 210. The first conductive portion 310 may include a first feed point 311 and a first ground point 312. A filter circuit 360 may be electrically connected to a portion 222 of the second conductive portion 370 that is formed at least partially along the second side outer surface 221 of the second housing portion 220. The filter circuit 360 may be electrically connected to the second side outer surface 221 and ground. The third conductive portion 320 may be formed at least partially along the third side surface 231 of the third housing portion 230. The third conductive portion 320 may include a second feed point 321 and a second ground point 322. In the folded state of the first housing portion 210, the second housing portion 220, and the third housing portion 230, the second housing portion 220 may be located between the first housing portion 210 and the third housing portion 230. A portion 222 in the second outer surface 221 may correspond to a first region 710 between the first feed point 311 and the first ground point 312, and a second region 730 between the second feed point 321 and the second ground point 322.

[0248] For example, in the folded state where the first housing portion 210 and the third housing portion 230 are folded, the first feed point 311 can be substantially aligned with the second feed point 321. In the folded state where the first housing portion 210 and the third housing portion 230 are folded, the first ground point 312 can be substantially aligned with the second ground point 322.

[0249] For example, the first region 710 may partially overlap with the second region 730.

[0250] For example, a portion 222 in the second outer surface 221 may be located between a first point in the second outer surface 221 corresponding to the first grounding point 312 and a second point in the second outer surface 221 corresponding to the second grounding point 322.

[0251] For example, filter circuit 360 can be configured to allow signals corresponding to a predefined resonant frequency range to pass through. The predefined resonant frequency range may include parasitic resonant frequencies associated with the frequencies of signals transmitted or received through the first conductive portion 310. Filter circuit 360 according to an embodiment can be used as a notch filter for signals transmitted and / or received through the first conductive portion 310 by selectively allowing parasitic resonant frequency bands to pass through.

[0252] The electronic device according to various embodiments can be one of a variety of types of electronic devices. Electronic devices may include, for example, portable communication devices (e.g., smartphones), computer devices, portable multimedia devices, portable medical devices, cameras, wearable devices, or home appliances. According to embodiments of this disclosure, the electronic device is not limited to those described above.

[0253] It should be understood that the various embodiments of this disclosure and the terminology used therein are not intended to limit the technical features set forth herein to the specific embodiments, but rather to include various changes, equivalents, or substitutions to the respective embodiments. In the description of the drawings, similar reference numerals may be used to refer to similar or related elements. It will be understood that nouns in the singular form corresponding to terms may include one or more things unless the relevant context clearly indicates otherwise. As used herein, each of the phrases such as “A or B,” “at least one of A and B,” “at least one of A or B,” “A, B, or C,” “at least one of A, B, and C,” and “at least one of A, B, or C” may include any one or all possible combinations of the items enumerated together with the corresponding phrase among the plurality of phrases. As used herein, terms such as “first” and “second” or “first” and “second” may be used to simply distinguish the respective component from another component and do not limit the component in other respects (e.g., importance or order). It will be understood that, whether the terms “operably” or “communically” are used or not, if an element (e.g., a first element) is referred to as “combined with another element (e.g., a second element),” “combined to another element (e.g., a second element),” “connected to another element (e.g., a second element),” or “connected to another element (e.g., a second element)”, it means that the element can be directly (e.g., wiredly) connected to the other element, wirelessly connected to the other element, or connected to the other element via a third element.

[0254] As used in connection with various embodiments of this disclosure, the term "module" may include a unit implemented in hardware, software, or firmware, and may be used interchangeably with other terms such as "logic," "logic block," "part," or "circuit." A module may be a single integrated component adapted to perform one or more functions, or the smallest unit or part of such a single integrated component. For example, according to embodiments, a module may be implemented in the form of an application-specific integrated circuit (ASIC).

[0255] The various embodiments set forth herein can be implemented as software (e.g., program 140) containing one or more instructions readable by a machine (e.g., electronic device 101) stored in a storage medium (e.g., internal memory 136 or external memory 138). For example, under the control of a processor, the processor (e.g., processor 120) of the machine (e.g., electronic device 101) can invoke and execute at least one of the one or more instructions stored in the storage medium, with or without the use of one or more other components. This enables the machine to operate to perform at least one function according to the invoked at least one instruction. The one or more instructions may include code generated by a compiler or code executable by an interpreter. Machine-readable storage media may be provided in the form of non-transitory storage media. The term "non-transitory" simply means that the storage medium is a tangible device and does not include signals (e.g., electromagnetic waves), but this term does not distinguish between data being stored semi-permanently in the storage medium and data being temporarily stored in the storage medium.

[0256] According to embodiments, methods according to various embodiments of this disclosure may be included and provided in a computer program product. The computer program product can 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., a compact disk read-only memory (CD-ROM)) or via an app store (e.g., the Play Store). TM The computer program product may be published online (e.g., downloaded or uploaded), or may be distributed directly between two user devices (e.g., smartphones) (e.g., downloaded or uploaded). If published online, at least a portion of the computer program product may be temporarily generated, or at least a portion of the computer program product may be temporarily stored in a machine-readable storage medium (such as the memory of a manufacturer's server, an app store's server, or a forwarding server).

[0257] According to various embodiments, each of the above-described components (e.g., a module or program) 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. Optionally or additionally, multiple components (e.g., modules or programs) may be integrated into a single component. In this case, according to various embodiments, the integrated component may still perform the one or more functions of each of the multiple components in the same or similar manner as the corresponding component of the multiple components performed one or more functions before integration. According to various embodiments, the operations performed by a module, program, or other component may be performed sequentially, in parallel, repeatedly, or heuristically, or one or more of the operations may be run in a different order or omitted, or one or more other operations may be added.

[0258] While this disclosure has been shown and described with reference to various embodiments thereof, those skilled in the art will understand that various changes in form and detail may be made therein without departing from the spirit and scope of this disclosure as defined by the appended claims and their equivalents.

Claims

1. An electronic device comprising: A foldable housing, comprising a first housing portion, a second housing portion, and a third housing portion, the foldable housing being configured to fold relative to a first folding axis and a second folding axis such that the first housing portion, the second housing portion, and the third housing portion are stacked relative to each other in the folded state; Wireless communication circuits used for wireless communication; A first conductive portion is formed at least partially along a first side outer surface of a first housing portion, the first conductive portion including a feed point electrically connected to a wireless communication circuit and a ground point electrically connected to a ground terminal of an electronic device; as well as A filter circuit, wherein the filter circuit is electrically connected to a portion of a second conductive portion formed at least partially along the second side outer surface of the second housing portion, and is electrically connected to the second conductive portion of the second side outer surface and a ground terminal. In the folded state of the first, second, and third housing portions, the second housing portion is located between the first and third housing portions. In the folded state where the first housing part and the second housing part are folded, a portion of the second conductive part on the outer surface of the second side corresponds to the area between the feed point of the first conductive part and the ground point of the first conductive part.

2. The electronic device according to claim 1, in, The filter circuit is configured to allow signals corresponding to a predefined resonant frequency range to pass through, and The predefined resonant frequency range includes parasitic resonant frequencies associated with the frequency of signals transmitted or received through the first conductive portion.

3. The electronic device according to any one of claims 1 or 2, further comprising: The third conductive portion is formed at least partially along the outer surface of the third side of the third housing portion perpendicular to the second folding axis, and includes a feed point electrically connected to a wireless communication circuit and a ground point electrically connected to ground.

4. The electronic device according to claim 3, wherein, In the folded state with the first housing portion, the second housing portion, and the third housing portion folded, a portion of the second conductive portion on the outer surface of the second side corresponds to the area between the feed point of the first conductive portion and the ground point of the first conductive portion, and the area between the feed point of the third conductive portion and the ground point of the third conductive portion.

5. The electronic device according to any one of claims 3 or 4, in, In the folded state of the first and third housing portions, the feed point of the first conductive portion is substantially aligned with the feed point of the third conductive portion, and In the folded state where the first housing part and the third housing part are folded, the grounding point of the first conductive part is substantially aligned with the grounding point of the third conductive part.

6. The electronic device according to any one of claims 3 to 5, wherein, In the folded state with the first housing portion and the third housing portion folded, the area between the feed point of the first conductive portion and the ground point of the first conductive portion partially overlaps with the area between the ground point of the first conductive portion and the ground point of the third conductive portion.

7. The electronic device according to claim 6, wherein, A portion of the second conductive portion on the second outer surface is located between a first point on the second outer surface aligned with the grounding point of the first conductive portion and a second point on the second outer surface aligned with the grounding point of the third conductive portion.

8. The electronic device according to any one of claims 3 to 7, in, An antenna, including at least a portion of a first conductive portion, is configured to operate as a main antenna for transmitting or receiving signals in a designated frequency band via a wireless communication circuit. The antenna, including at least a portion of the third conductive portion, is configured to operate as a diversity antenna for transmitting or receiving signals in a specified frequency band by being fed from a wireless communication circuit.

9. The electronic device according to any one of claims 1 to 8, wherein, In the folded state with the first housing portion, the second housing portion, and the third housing portion folded, the first housing portion and the third housing portion are located outside the electronic device.

10. The electronic device according to any one of claims 1 to 9, wherein, The filter circuit includes a filter circuit configured to allow a signal corresponding to a parasitic resonant frequency to pass through, wherein the parasitic resonant frequency is different from the frequency of a signal transmitted or received through the first conductive portion.

11. The electronic device according to any one of claims 1 to 10, wherein, In the folded state with the first housing portion, the second housing portion, and the third housing portion folded, the second outer surface overlaps with the first outer surface.

12. The electronic device according to any one of claims 1 to 11, wherein, In the folded state with the second and third housing portions folded, a portion of the second conductive portion in the second side is located on the path through which the current forming a parasitic resonance caused by the structure of the foldable housing is supplied to the outer surface of the second side.

13. The electronic device according to claim 12, wherein, The direction of the current formed on the outer surface of the second side corresponds to the direction of the radiation current formed along the first conductive portion.

14. The electronic device according to any one of claims 1 to 13, further comprising: A first hinge portion and a second hinge portion, wherein the first hinge portion is disposed between a first housing portion and a second housing portion, and the second hinge portion is disposed between a first housing portion and a third housing portion or between a second housing portion and a third housing portion.

15. The electronic device according to any one of claims 1 to 14, further comprising: Another filter circuit is electrically connected to another portion of the second side outer surface.

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