Electronic device comprising foldable housing and antenna

Abstract

An electronic device comprises: a foldable housing which includes a first housing part, a second housing part and a third housing part, and which is folded with respect to a first folding axis and a second folding axis, the first housing part, the second housing part and the third housing part being stacked on each other in the folded state thereof; a wireless communication circuit for wireless communication; and a filter circuit that is electrically connected to a first conductive portion, of which at least a portion is formed along a first side surface of the first housing part and which includes a feeding point electrically connected to the wireless communication circuit and a ground point electrically connected to the ground of the electronic device, and to one portion of a second conductive part, of which at least a portion is formed along a second side surface of the second housing part, and that electrically connects the second conductive part of the second side surface and the ground, wherein the second housing part is located between the first housing part and the third housing part while the first housing part, the second housing part and the third housing part are folded, and the one portion of the second conductive part of the second side surface corresponds to the area between the feeding point of the first conductive part and the ground point of the first conductive part while the first housing part and the second housing part are folded.

Description

Electronic device including a foldable housing and antenna

[0001] The present disclosure relates to an electronic device including a foldable housing and an antenna.

[0002] An electronic device may transmit or receive signals via an antenna. For example, the electronic device may include a plurality of conductive portions forming a portion of a side surface. Some of the plurality of conductive portions may function as antenna radiators for transmitting and / or receiving signals.

[0003] For example, an electronic device may include a foldable housing and a flexible display to provide an enhanced user experience. For example, the foldable housing may include multiple housing sections. The foldable housing may have a structure in which the multiple housing sections can be folded or unfolded one or more times.

[0004] The above information is provided as background information to aid in understanding the present disclosure. No claim or determination is made as to whether any of the above is applicable as prior art in connection with the present disclosure.

[0005] Aspects of the present disclosure provide at least the advantages described below. Accordingly, one aspect of the present disclosure provides an electronic device including a foldable housing and an antenna.

[0006] Additional aspects will be described in part herein, and in part will be obvious from the specification or may be learned by practice of the embodiments set forth herein.

[0007] According to one aspect of the present 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, wherein the foldable housing is configured to be foldable about 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 in a folded state with respect to each other. The electronic device includes a wireless communication circuit for wireless communication. The electronic device includes a first conductive portion, wherein the first conductive portion includes a first conductive portion formed at least partially along a first side surface of the first housing portion perpendicular to the first folding axis, wherein the first conductive portion includes a feed point electrically connected to the wireless communication circuit and a ground point electrically connected to a ground. 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 surface of the second housing portion, and electrically connecting the second conductive portion of the second side surface and the ground. The second housing portion may be positioned between the first housing portion and the third housing portion in the folded state of the first housing portion, the second housing portion, and the third housing portion. The portion of the second conductive portion within the second side corresponds to an area between the feeding point of the first conductive portion and the grounding point of the first conductive portion in the folded state of the first housing portion and the second housing portion.

[0008] In accordance with another aspect of the present disclosure, an electronic device is provided. The electronic device includes a first housing portion, a second housing portion having one side rotatably connected to one side of the first housing portion about a first folding axis, and a third housing portion rotatably connected to one side of the first housing portion about a second folding axis parallel to the first folding axis, the second folding axis being parallel to the first folding axis. The electronic device includes a first conductive portion formed at least partially along a first side 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 a second side of the second housing portion and electrically connecting the second side to ground. The electronic device includes a third conductive portion formed at least partially along a third side of the third housing portion and including a second feed point and a second ground point. The second housing portion may be positioned between the first housing portion and the third housing portion when the first housing portion, the second housing portion, and the third housing portion are in a folded state. The portion within the second side corresponds to a first region between the first feeding point and the first grounding point and a second region between the second feeding point and the second grounding point.

[0009] Other aspects, advantages, and salient features of the present disclosure will become apparent to those skilled in the art from the following detailed description of various embodiments of the present disclosure taken in conjunction with the accompanying drawings.

[0010] The above aspects, other aspects, features, and advantages of specific embodiments of the present disclosure will become apparent from the following description taken in conjunction with the accompanying drawings:

[0011] FIG. 1 is a block diagram of an electronic device within a network environment according to one embodiment;

[0012] FIGS. 2A and 2B illustrate electronic devices according to various embodiments including a foldable housing;

[0013] FIG. 3A is a block diagram of an electronic device according to one embodiment;

[0014] FIGS. 3B and 3C illustrate a foldable housing of an electronic device according to various embodiments;

[0015] Figure 4a illustrates current flows formed on the side of an electronic device that does not include a filter circuit;

[0016] FIG. 4b illustrates current flows formed on a side surface of an electronic device according to one embodiment including a filter circuit;

[0017] FIG. 5a illustrates a side view of an electronic device according to a comparative example;

[0018] FIG. 5b illustrates a side view of an electronic device according to one embodiment;

[0019] Fig. 5c is a graph showing the efficiency of the antenna;

[0020] Fig. 6a is a graph for confirming the difference in radiation efficiency of an antenna due to a filter circuit;

[0021] Fig. 6b is a graph for confirming the difference in reflection coefficient of the antenna due to the filter circuit;

[0022] FIG. 7A illustrates a side view of a second housing portion and a foldable housing of an electronic device according to one embodiment;

[0023] Fig. 7b shows the efficiency of the first antenna according to the position of a part;

[0024] Figure 7c shows the efficiency of the second antenna according to the position of a part;

[0025] Fig. 7d shows the efficiency of the first antenna according to the position of a portion within the second region;

[0026] Figure 7e shows the efficiency of the second antenna according to the position of a portion within the second region;

[0027] FIG. 8 illustrates a side view of an electronic device according to one embodiment;

[0028] FIG. 9A illustrates a side view of an electronic device according to one embodiment;

[0029] FIG. 9b shows the efficiency of the first antenna depending on whether the electronic device illustrated in FIG. 9a includes a filter circuit;

[0030] FIG. 9c shows the efficiency of the second antenna depending on whether the electronic device illustrated in FIG. 9a includes a filter circuit;

[0031] FIG. 10A is a block diagram of an electronic device according to one embodiment;

[0032] Fig. 10b shows the communication characteristics of an electronic device using a filter circuit;

[0033] FIG. 11A illustrates a side view of an electronic device according to one embodiment;

[0034] FIG. 11b shows the efficiency of the first antenna and the second antenna of the electronic device illustrated in FIG. 11a;

[0035] FIG. 11c shows the reflection coefficients of the first antenna and the second antenna of the electronic device illustrated in FIG. 11a;

[0036] FIG. 12A illustrates a side view of an electronic device according to one embodiment;

[0037] Fig. 12b shows the efficiency of the antenna of the electronic device illustrated in Fig. 12a;

[0038] FIG. 13A illustrates a side view of an electronic device according to one embodiment;

[0039] Fig. 13b shows the efficiency of the antenna of the electronic device illustrated in Fig. 13a;

[0040] FIG. 14A illustrates a side view of an electronic device according to one embodiment;

[0041] Fig. 14b shows the efficiency of the antenna of the electronic device illustrated in Fig. 14a;

[0042] FIG. 15A illustrates a side view of an electronic device according to one embodiment;

[0043] FIG. 15b shows the efficiency of the first antenna according to the location of the feed point and ground point of the electronic device according to one embodiment; and

[0044] FIG. 15c shows the efficiency of the second antenna according to the positions of the feed point and ground point of the electronic device according to one embodiment.

[0045] It should be noted that similar reference numbers are used throughout the drawings to describe identical or similar elements, features, and structures.

[0046] The following description, with reference to the attached drawings, is provided to facilitate a comprehensive understanding of various embodiments of the present disclosure defined by the claims and their equivalents. While various specific details are included to facilitate understanding, they are to be considered merely exemplary. Accordingly, those skilled in the art will recognize that various modifications and variations can be made to the various embodiments described herein without departing from the scope and spirit of the present disclosure. Furthermore, descriptions of known functions and configurations may be omitted for clarity and conciseness.

[0047] The terms and words used in the following description and claims are not intended to be limited in their bibliographic meanings, but are used solely by the inventors to facilitate a clear and consistent understanding of the present disclosure. Accordingly, it will be apparent to those skilled in the art that the following description of various embodiments of the present disclosure is provided for illustrative purposes only, and is not intended to limit the present disclosure, as defined by the appended claims and their equivalents.

[0048] The singular forms "a," "an," and "the" should be understood to include plural referents unless the context clearly dictates otherwise. Thus, for example, reference to "a component surface" includes reference to one or more of those surfaces.

[0049] It should be understood that the blocks and combinations of flowcharts in each flowchart can be implemented by one or more computer programs containing computer-executable instructions. The one or more computer programs may be stored entirely in a single memory device, or the one or more computer programs may be divided into different portions stored in different memory devices.

[0050] Any function or operation described herein may be processed by a single processor or a combination of processors. A single processor or a combination of processors is a circuit that performs processing, and may include an application processor (AP, e.g., a central processing unit (CPU)), a communication processor (CP, e.g., a modem), a graphics processing unit (e.g., a GPU), a neural processing unit (NPU) (e.g., an artificial intelligence (AI) chip), a wireless-fidelity (Wi-Fi) chip, or a Bluetooth chip. TMIt includes a chip, a global positioning system (GPS) chip, a near field communication (NFC) chip, connectivity chips, a sensor controller, a touch controller, a finger-print sensor controller, a display drive integrated circuit (DDI), an audio CODEC chip, a universal serial bus (USB) controller, a camera controller, an image processing IC, a microprocessor unit (MPU), a system on chip (SoC), an integrated circuit (IC), or a similar circuit.

[0051] FIG. 1 is a block diagram of an electronic device within a network environment, according to one embodiment.

[0052] Referring to FIG. 1, in a network environment (100), an electronic device (101) may communicate with an electronic device (102) via a first network (198) (e.g., a short-range wireless communication network), or may communicate with an electronic device (104) or a server (108) via a second network (199) (e.g., a long-range wireless communication network). According to one embodiment, the electronic device (101) may communicate with the electronic device (104) via the server (108). According to one embodiment, the electronic device (101) may include a processor (120), a memory (130), an input module (150), an audio output module (155), a display module (160), an audio module (170), a sensor module (176), an interface (177), a connection terminal (178), a haptic module (179), a camera module (180), a power management module (188), a battery (189), a communication module (190), a subscriber identification module (196), or an antenna module (197). In some embodiments, the electronic device (101) may omit at least one of these components (e.g., the connection terminal (178)), or may have one or more other components added. In some embodiments, some of these components (e.g., the sensor module (176), the camera module (180), or the antenna module (197)) may be integrated into one component (e.g., the display module (160)).

[0053] The processor (120) may, for example, execute software (e.g., a program (140)) to control at least one other component (e.g., a hardware or software component) of the electronic device (101) connected to the processor (120) and perform various data processing or calculations. According to one embodiment, as at least a part of the data processing or calculations, the processor (120) may store commands or data received from other components (e.g., a sensor module (176) or a communication module (190)) in a volatile memory (132), process the commands or data stored in the volatile memory (132), and store result data in a non-volatile memory (134). According to one embodiment, the processor (120) may include a main processor (121) (e.g., a central processing unit or an application processor) or a secondary processor (123) (e.g., a graphics processing unit, a neural processing unit (NPU), an image signal processor, a sensor hub processor, or a communication processor)) that can operate independently or together therewith. For example, if the electronic device (101) includes a main processor (121) and a secondary processor (123), the secondary processor (123) may be configured to use less power than the main processor (121) or to be specialized for a specified function. The secondary processor (123) may be implemented separately from the main processor (121) or as a part thereof.

[0054] The auxiliary processor (123) may control at least a part of functions or states associated with at least one component (e.g., a display module (160), a sensor module (176), or a communication module (190)) of the electronic device (101), for example, on behalf of the main processor (121) while the main processor (121) is in an inactive (e.g., sleep) state, or together with the main processor (121) while the main processor (121) is in an active (e.g., application execution) state. In one embodiment, the auxiliary processor (123) (e.g., an image signal processor or a communication processor) may be implemented as a part of another functionally related component (e.g., a camera module (180) or a communication module (190)). In one embodiment, the auxiliary processor (123) (e.g., a neural network processing unit) may include a hardware structure specialized for processing artificial intelligence models. The artificial intelligence models may be generated through machine learning. This learning can be performed, for example, in the electronic device (101) itself where artificial intelligence is performed, or can be performed through a separate server (e.g., server (108)). The learning algorithm can include, for example, supervised learning, unsupervised learning, semi-supervised learning, or reinforcement learning, but is not limited to the examples described above. The artificial intelligence model can include multiple artificial neural network layers.The artificial neural network may be one of 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), a deep Q-network, or a combination of two or more of the above, but is not limited to the examples described above. In addition to, or alternatively to, a hardware structure, an artificial intelligence model may include a software structure.

[0055] The memory (130) may be configured to store various data used by at least one component (e.g., a processor (120) or a sensor module (176)) of the electronic device (101). The data may include, for example, software (e.g., a program (140)) and input data or output data for commands related thereto. The memory (130) may include a volatile memory (132) or a non-volatile memory (134).

[0056] The program (140) may be stored as software in the memory (130) and may include, for example, an operating system (142), middleware (144), or an application (146).

[0057] The input module (150) can receive commands or data to be used in a component of the electronic device (101) (e.g., a processor (120)) from an external source (e.g., a user) of the electronic device (101). The input module (150) can include, for example, a microphone, a mouse, a keyboard, a key (e.g., a button), or a digital pen (e.g., a stylus pen).

[0058] The audio output module (155) can output audio signals to the outside of the electronic device (101). The audio output module (155) can include, for example, a speaker or a receiver. The speaker can be used for general purposes, such as multimedia playback or recording playback. The receiver can be used to receive incoming calls. In one embodiment, the receiver can be implemented separately from the speaker or as part of the speaker.

[0059] The display module (160) can visually provide information to an external party (e.g., a user) of the electronic device (101). The display module (160) may include, for example, a display, a holographic device, or a projector and a control circuit for controlling the device. In one embodiment, the display module (160) may include a touch sensor configured to detect a touch, or a pressure sensor configured to measure the intensity of a force generated by the touch.

[0060] The audio module (170) can convert sound into an electrical signal, or vice versa, convert an electrical signal into sound. According to one embodiment, the audio module (170) can acquire sound through the input module (150), output sound through the sound output module (155), or an external electronic device (e.g., electronic device (102)) (e.g., speaker or headphone) directly or wirelessly connected to the electronic device (101).

[0061] The sensor module (176) can detect the operating status (e.g., power or temperature) of the electronic device (101) or the external environmental status (e.g., user status) and generate an electrical signal or data value corresponding to the detected status. According to one embodiment, the sensor module (176) can include, for example, a gesture sensor, a gyro sensor, a barometric pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a proximity sensor, a color sensor, an IR (infrared) sensor, a biometric sensor, a temperature sensor, a humidity sensor, or an illuminance sensor.

[0062] The interface (177) may support one or more designated protocols that may be used to directly or wirelessly connect the electronic device (101) with an external electronic device (e.g., the electronic device (102)). In one embodiment, the interface (177) may include, for example, a high definition multimedia interface (HDMI), a universal serial bus (USB) interface, an SD card interface, or an audio interface.

[0063] The connection terminal (178) may include a connector through which the electronic device (101) may be physically connected to an external electronic device (e.g., electronic device (102)). According to one embodiment, the connection terminal (178) may include, for example, an HDMI connector, a USB connector, an SD card connector, or an audio connector (e.g., a headphone connector).

[0064] The haptic module (179) can convert electrical signals into mechanical stimuli (e.g., vibration or movement) or electrical stimuli that a user can perceive through tactile or kinesthetic sensations. In one embodiment, the haptic module (179) can include, for example, a motor, a piezoelectric element, or an electrical stimulation device.

[0065] The camera module (180) can capture still images and videos. According to one embodiment, the camera module (180) may include one or more lenses, image sensors, image signal processors, or flashes.

[0066] The power management module (188) can manage power supplied to the electronic device (101). According to one embodiment, the power management module (188) can be implemented, for example, as at least a part of a power management integrated circuit (PMIC).

[0067] A battery (189) may power at least one component of the electronic device (101). In one embodiment, the battery (189) may include, for example, a non-rechargeable primary battery, a rechargeable secondary battery, or a fuel cell.

[0068] The communication module (190) may support the establishment of a direct (e.g., wired) communication channel or a wireless communication channel between the electronic device (101) and an external electronic device (e.g., electronic device (102), electronic device (104), or server (108)), and the performance of communication through the established communication channel. The communication module (190) may operate independently from the processor (120) (e.g., application processor) and may include one or more communication processors that support direct (e.g., wired) communication or wireless communication. According to one embodiment, the communication module (190) may include a wireless communication module (192) (e.g., a cellular communication module, a short-range wireless communication module, or a global navigation satellite system (GNSS) communication module) or a wired communication module (194) (e.g., a local area network (LAN) communication module, or a power line communication module). Among these communication modules, the corresponding communication module can communicate with an external electronic device (104) via a first network (198) (e.g., a short-range communication network such as Bluetooth, wireless fidelity (WiFi) direct, or infrared data association (IrDA)) or a second network (199) (e.g., a long-range communication network such as a legacy cellular network, a fifth-generation (5G) network, a next-generation communication network, the Internet, or a computer network (e.g., a local area network (LAN) or a wide area network (WAN))). These various types of communication modules can be integrated into a single component (e.g., a single chip) or implemented as multiple separate components (e.g., multiple chips). The wireless communication module (192) can verify or authenticate the electronic device (101) within a communication network such as the first network (198) or the second network (199) by using subscriber information (e.g., an international mobile subscriber identity (IMSI)) stored in the subscriber identification module (196).

[0069] The wireless communication module (192) can support a 5G network and next-generation communication technologies following the 4th generation (4G) network, for example, new radio access technology (NR). The NR access technology can support high-speed transmission of high-capacity data (eMBB (enhanced mobile broadband)), minimization of terminal power and connection of multiple terminals (mMTC (massive machine type communications)), or high reliability and low latency (URLLC (ultra-reliable and low-latency communications)). The wireless communication module (192) can support, for example, a high-frequency band (e.g., mmWave band) to achieve a high data transmission rate. The wireless communication module (192) can support various technologies for securing performance in a high-frequency band, such as beamforming, massive multiple-input and multiple-output (MIMO), full dimensional MIMO (FD-MIMO), array antenna, analog beam-forming, or large scale antenna. The wireless communication module (192) can support various requirements specified in the electronic device (101), an external electronic device (e.g., the electronic device (104)), or a network system (e.g., the second network (199)). According to one embodiment, the wireless communication module (192) may support a peak data rate (e.g., 20 Gbps or more) for eMBB realization, a loss coverage (e.g., 164 dB or less) for mMTC realization, or a U-plane latency (e.g., 0.5 ms or less for downlink (DL) and uplink (UL), or 1 ms or less for round trip) for URLLC realization.

[0070] The antenna module (197) can transmit or receive signals or power to or from an external device (e.g., an external electronic device). In one embodiment, the antenna module (197) may include an antenna including a radiator formed of a conductor or a conductive pattern formed on a substrate (e.g., a PCB). In one embodiment, the antenna module (197) may include a plurality of antennas (e.g., an array antenna). In this case, at least one antenna suitable for a communication method used in a communication network, such as the first network (198) or the second network (199), may be selected from the plurality of antennas by, for example, the communication module (190). A signal or power may be transmitted or received between the communication module (190) and an external electronic device through the selected at least one antenna. In some embodiments, in addition to the radiator, another component (e.g., a radio frequency integrated circuit (RFIC)) may be additionally formed as a part of the antenna module (197).

[0071] In one embodiment, the antenna module (197) may form a millimeter wave (mmWave) antenna module. In one embodiment, the mmWave antenna module may include a printed circuit board, an RFIC disposed on or adjacent a first side (e.g., a bottom side) of the printed circuit board and capable of supporting a designated high frequency band (e.g., a mmWave band), and a plurality of antennas (e.g., an array antenna) disposed on or adjacent a second side (e.g., a top side or a side side) of the printed circuit board and capable of transmitting or receiving signals in the designated high frequency band.

[0072] At least some of the above components can be interconnected and exchange signals (e.g., commands or data) with each other via a communication method between peripheral devices (e.g., a bus, GPIO (general purpose input and output), SPI (serial peripheral interface), or MIPI (mobile industry processor interface)).

[0073] According to one embodiment, commands or data may be transmitted or received between the electronic device (101) and an external electronic device (104) via a server (108) connected to a second network (199). Each of the external electronic devices (102 or 104) may be the same or a different type of device as the electronic device (101). According to one embodiment, all or part of the operations executed in the electronic device (101) may be executed in one or more of the external electronic devices (102, 104, or 108). For example, when the electronic device (101) is to perform a certain function or service automatically or in response to a request from a user or another device, the electronic device (101) may, instead of or in addition to executing the function or service itself, request one or more external electronic devices to perform the function or at least a part of the service. One or more external electronic devices that receive the request may execute at least a portion of the requested function or service, or an additional function or service related to the request, and transmit the result of the execution to the electronic device (101). The electronic device (101) may process the result as is or additionally and provide it as at least a portion of a response to the request. For this purpose, cloud computing, distributed computing, mobile edge computing (MEC), or client-server computing technology may be used, for example. The electronic device (101) may provide an ultra-low latency service by using distributed computing or mobile edge computing, for example. In another embodiment, the external electronic device (104) may include an Internet of Things (IoT) device. The server (108) may be an intelligent server utilizing machine learning and / or a neural network. According to one embodiment, the external electronic device (104) or the server (108) may be included in the second network (199).The electronic device (101) can be applied to intelligent services (e.g., smart home, smart city, smart car, or healthcare) based on 5G communication technology and IoT-related technology.

[0074] FIGS. 2A and 2B illustrate electronic devices according to various embodiments including a foldable housing.

[0075] Referring to FIG. 2A, an electronic device (101) according to one embodiment may include a deformable foldable housing (200). For example, the foldable housing (200) may be referred to as a multi-foldable housing in that it includes a plurality of housing portions that are foldably connected. For 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 coupled to each other. In the present 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.

[0076] 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, depending on the folding structure of the foldable housing (200), the connection relationship between the hinge portion (250) and the housing portions may be different.

[0077] Referring to FIG. 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) about a 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) about a second folding axis (242). For example, the hinge portion (250) may include a first hinge portion (251) rotatably connecting the second housing portion (220) to one side of the first housing portion (210) and a 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 that can be folded more than once by the first hinge portion (251) and the second hinge portion (252).

[0078] 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).

[0079] For example, as the first housing portion (210) and / or the second housing portion (220) rotates about the first folding axis (241), the first angle (261) between the first housing portion (210) and the second housing portion (220) may change. For example, as the first housing portion (210) and / or the third housing portion (230) rotates about the second folding axis (242), the second angle (262) between the first housing portion (210) and the third housing portion (230) may change. In terms of including a plurality of folding axes, such as the first folding axis (241) and the second folding axis (242), the electronic device (101) according to one embodiment may be referred to as a multi-foldable electronic device.

[0080] An electronic device (101) according to one embodiment may include a flexible display (271) disposed on one side of a foldable housing (200). For example, the flexible display (271) may extend from at least a portion of the front surface of the second housing portion (220) across at least a portion of the front surface of the first housing portion (210) to at least a portion of the front surface of the third housing portion (230). For example, when the foldable housing (200) is folded or unfolded, the flexible display (271) may also be folded or unfolded.

[0081] Referring to FIGS. 2A and 2B, different states of the electronic device (101, 101') are illustrated, distinguished by the shape of the foldable housing (200, 200'). For example, the flexible display (271) of the electronic device (101) illustrated in FIG. 2A may be 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).

[0082] The first state (201) of FIG. 2A may represent a fully unfolded state of the first housing portion (210), the second housing portion (220), and the third housing portion (230). For example, within the first state (201), the first angle (261) and the second angle (262) may be substantially straight angles (e.g., approximately 180 degrees). The first state (201) may be referred to as an open state, a flat state, an outspread state, and / or an unfolded state from the perspective that the first housing portion (210), the second housing portion (220), and the third housing portion (230) are fully unfolded. Within the first state (201), the flexible display (271) may be substantially flat. For example, within the first state (201), the first housing portion (210) may be positioned between the second housing portion (220) and the third housing portion (230).

[0083] The second state (202) of FIG. 2A may represent a state in which at least one of the first angle (261) or the second angle (262) is less than a parallel angle. For example, as the second housing portion (220) is rotated relative to the first housing portion (210) or the third housing portion (230) is rotated relative to the first housing portion (210), the electronic device (101) may change from the first state (201) to the second state (202). For example, a state of the electronic device (101) in which the first angle (261) and / or the second angle (262) is less than a parallel angle may be referred to as an in-fold state, a sub-unfolded state (or sub-folded state), an intermediate state, and / or a concave state. Within the second state (202), a portion of the flexible display (271) may be folded. For example, a portion of the flexible display (271) corresponding to the first folding axis (241) and / or the second folding axis (242) may be folded at an angle corresponding to the first angle (261) and / or the second angle (262).

[0084] The third state (203) of FIG. 2A may represent a fully folded state in which the first housing portion (210), the second housing portion (220), and the third housing portion (230) are fully folded. For example, within the third state (203), the first angle (261) and the second angle (262) may be substantially about 0 degrees. For example, within the third state (203), the flexible display (271) may not be exposed to the outside of the electronic device (101) by being covered by the first housing portion (210), the second housing portion (220), and / or the third housing portion (230). For example, within the third state, the second housing portion (220) may be positioned between the first housing portion (210) and the third housing portion (230). For example, in the third state (203), the cover display (272) placed on the third housing part (230) can be exposed to the outside.

[0085] Referring to FIG. 2B, an electronic device (101') according to one embodiment may include a foldable housing (200') having a folding structure different from the folding structure of the foldable housing (200) illustrated in FIG. 2A. For example, the flexible display (271') of the electronic device (101') illustrated in FIG. 2B may be partially exposed, rather than 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').

[0086] For example, one side (e.g., the -x direction side) of the second housing portion (220') may be rotatably connected to one side (e.g., the +x direction side) of the first housing portion (210') about a 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 second housing portion (220') about a second folding axis (242'). For example, the hinge portion (250') may include a first hinge portion (251') rotatably connecting one side of the second housing portion (220') to one side of the first housing portion (210') and a second hinge portion (252') rotatably connecting the third housing portion (230') to the other side of the second housing portion (220').

[0087] The fourth state (204) of FIG. 2B may represent a fully unfolded state of the first housing portion (210'), the second housing portion (220'), and the third housing portion (230'). For example, the fourth state (204) may correspond to the first state (201) of the electronic device (101) of FIG. 2A. For example, within the fourth state, the flexible display (271') may be flat. For example, within the fourth state (204), the second housing portion (220') may be positioned between the first housing portion (210') and the third housing portion (230').

[0088] The fifth state (205) of FIG. 2B may represent a state in which at least one of the first angle (261') or the second angle (262') is less than a parallel angle. For example, as the first housing portion (210') is rotated relative to the second housing portion (220') or the third housing portion (230') is rotated relative to the second housing portion (220'), the electronic device (101') may change from the fourth state (204) to the fifth state (205). For example, the fifth state (205) may be referred to as an in-fold state, a sub-unfolded state (or sub-folded state), an intermediate state, and / or a concave state. Within the fifth state (205), a portion of the flexible display (271') may be folded.

[0089] The sixth state (206) of FIG. 2B may represent a fully folded state in which the first housing portion (210'), the second housing portion (220'), and the third housing portion (230') are completely folded. For example, within the sixth state (206), the first angle (261') may be substantially about 360 degrees, and the second angle (262') may be substantially about 0 degrees. For example, the sixth state (206) may be referred to as a fully folded state and / or a closed state. For example, within the sixth state (206), a portion of the flexible display (271') may be exposed to the outside of the foldable housing (200'). For example, in the sixth state (206), among the parts of the flexible display (271') disposed on the first housing part (210'), the second housing part (220'), and the third housing part (230'), only the part of the flexible display (271') disposed on the third housing part (230') can be exposed to the outside.

[0090] Comparing the second state (202) and the third state (203) of FIG. 2A with the fifth state (205) and the sixth state (206) of FIG. 2B, the folding manner of the foldable housing (200, 200') may be different. For example, as illustrated in FIG. 2A, the second housing portion (220) and the third housing portion (230) may be folded on the front side (e.g., in the +z direction) with respect to the first housing portion (210) located in the center. For example, the second housing portion (220) may be rotated counterclockwise with respect to the first housing portion (210). For example, the third housing portion (230) may be rotated clockwise with respect to the first housing portion (210). In the case of the structure of the foldable housing (200) illustrated in FIG. 2A, in a completely folded state (e.g., in the third state (203), a part of the flexible display (271) may be covered by the foldable housing (200). In the viewpoint of being folded inward with respect to the first housing part (210) in which the second housing part (220) and the third housing part (230) are positioned in the center, the second housing part (220) and the third housing part (230) may be referred to as an infold structure.

[0091] As illustrated in FIG. 2b, the first housing portion (210') and the third housing portion (230') can be overlapped in different directions with respect to the second housing portion (220') located in the center. For example, the first housing portion (210') can be overlapped on the back side (e.g., in the -z direction) with respect to the second housing portion (220'). For example, the third housing portion (230') can be overlapped on the front side (e.g., in the +z direction) with respect to the second housing portion (220'). For example, the first housing portion (210') and the third housing portion (230') can be rotated counterclockwise with respect to the second housing portion (220'). In the case of the structure of the foldable housing (200') illustrated in FIG. 2b, in a completely folded state (e.g., the sixth state (206)), a portion of the flexible display (271') may be exposed to the outside of the foldable housing (200'). From the perspective that the first housing portion (210') is folded outward with respect to the second housing portion (220') positioned in the center, the first housing portion (210') may be referred to as an outfold structure. From the perspective that the third housing portion (230') is folded inward with respect to the second housing portion (220') positioned in the center, the third housing portion (230) may be referred to as an infold structure.

[0092] FIG. 3A is a block diagram of an electronic device according to one embodiment. FIGS. 3B and 3C illustrate a foldable housing of an electronic device according to various embodiments.

[0093] Referring to FIG. 3A, an electronic device (101) according to one 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).

[0094] For example, at least one processor (330) may include at least one of an application processor (AP) (e.g., a main processor (121) of FIG. 1)) or a communication processor (CP) (e.g., an auxiliary processor (123) of FIG. 1). For example, the wireless communication circuit (340) may include an RF (radio frequency) transceiver (341) and an RFFE (radio frequency front end) (342).

[0095] 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 the RF transceiver (341) to transmit a transmission signal through the first antenna (351) and the second antenna (352). At least one processor (330) can control the RF transceiver (341) to transmit the transmission signal in a frequency band that can communicate with an external electronic device.

[0096] For example, the RF transceiver (341) may be implemented as a single chip (e.g., an RFIC chip) or as part of a single package. The RF transceiver (341) may include a digital to analog converter (DAC) for converting a digital signal to an analog signal. The RF transceiver (341) may include a mixer and an oscillator (e.g., a local oscillator (LO)) for up-conversion. In one embodiment, the RF transceiver (341) may convert a baseband signal generated by at least one processor (330) into an RF signal. The RF transceiver (341) may include an analog to digital converter (ADC) for converting an analog signal to a digital signal. The RF transceiver (341) may include a mixer and an oscillator for down-conversion. The RF transceiver (341) can convert RF signals received from the first antenna (351) and the second antenna (352) into baseband signals so that they can be processed by at least one processor (330).

[0097] For example, the 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 a plurality of components electrically connected between the RF transceiver (341) and 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 components such as, but not limited to, a coupler, a power amplifier (PA), a low noise amplifier (LNA), a switching circuit, and / or a duplexer.

[0098] The first antenna (351) and the second antenna (352) can be used to transmit and / or receive signals on a designated frequency band. For example, the electronic device (101) can implement a diversity function and / or a multiple-input and multiple-output (MIMO) function using the first antenna (351) and the second antenna (352). For example, the first antenna (351) can operate as a primary antenna, and the second antenna (352) can operate as a diversity antenna. However, the present invention is not limited thereto. For example, the electronic device (101) can include one or more additional antennas in addition to the first antenna (351) and the second antenna (352) illustrated in FIG. 3A.

[0099] The electronic device (101) illustrated in FIG. 3b may correspond to the electronic device (101) illustrated in FIG. 2a. The electronic device (101') illustrated in FIG. 3c may correspond to the electronic device (101') illustrated in FIG. 2b.

[0100] Referring to FIG. 3b, in a first state (301) in which the first housing part (210), the second housing part (220), and the third housing part (230) are unfolded (e.g., in the first state (201) of FIG. 2a), the first housing part (210) can be positioned between the second housing part (220) and the third housing part (230). In a third state (302) in which the first housing part (210), the second housing part (220), and the third housing part (230) are folded (e.g., in the third state (203) of FIG. 2a), the second housing part (220) can be positioned between the first housing part (210) and the third housing part (230).

[0101] Referring to FIG. 3c, in a fourth state (303) in which the first housing portion (210'), the second housing portion (220'), and the third housing portion (230') are unfolded (e.g., the fourth state (240) of FIG. 2b), the second housing portion (220') may be positioned between the first housing portion (210') and the third housing portion (230'). In a sixth state (304) in which the first housing portion (210'), the second housing portion (220'), and the third housing portion (230') are folded (e.g., the sixth state (206) of FIG. 2b), the second housing portion (220') may be positioned between the first housing portion (210') and the third housing portion (230'). The electronic device (101') illustrated in FIG. 3c may be substantially the same as the electronic device (101) illustrated in FIG. 3b in other components, except for the folding structure of the foldable housing (200').

[0102] An electronic device (101, 101') according to one embodiment may be configured to communicate with an external electronic device using an antenna. For example, a radiator for transmitting and / or receiving a signal may be formed along a portion of a side surface of a 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 may operate as radiators for transmitting and / or receiving signals by being powered from a wireless communication circuit (e.g., the wireless communication circuit (340) of FIG. 3A). The plurality of non-conductive portions may separate a conductive portion of the plurality of conductive portions that operates as a radiator from other conductive portions.

[0103] Referring to FIG. 3B, the first housing portion (210) may include a first side surface (211) perpendicular to a 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 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 surface (211), the second side surface (221), and the third side surface (231) may at least partially form a side surface of the upper end (e.g., in the +y direction) of the foldable housing (200). However, the present invention is not limited thereto. For example, the first side (211), the second side (221), and the third side (231) may at least partially form the lower (e.g., -y direction) side of the foldable housing (200).

[0104] The first side (211) may include a first conductive portion (310). For example, the first conductive portion (310) may be formed at least partially along the first side (211). The first conductive portion (310) may be formed between a first non-conductive portion (421) and a second non-conductive portion (422) within the first side (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 a ground of the electronic device (101). When a power supply signal is provided from the wireless communication circuit (340) to the first power supply point (311), the first conductive portion (310) can operate as a radiator by forming an electromagnetic field for transmitting and / or receiving a wireless signal. For example, an antenna (e.g., the first antenna (351) of FIG. 3A) including at least a portion of the first conductive portion (310) can operate as an antenna for transmitting and / or receiving a signal on a designated frequency band (e.g., about 0.93 GHz). For example, the ground of the electronic device (101) electrically connected to the first ground point (312) may include, but is not limited to, a support member that is a conductive plate disposed inside the foldable housing (200).

[0105] The electronic device (101) may include a plurality of antennas for implementing communication diversity. For example, the third side (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 (231). The third conductive portion (320) may be formed between a third non-conductive portion (423) and a fourth non-conductive portion (424) within the third side (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 of the electronic device (101). For example, an antenna (e.g., the second antenna (352) of FIG. 3A) including at least a portion of the third conductive portion (320) may operate as an antenna for transmitting and / or receiving signals on a designated frequency band (e.g., about 0.93 GHz). The electronic device (101) according to one embodiment may implement communication diversity by transmitting and / or receiving signals through the first antenna (351) and the second antenna (352). As illustrated in FIG. 3B , in the third state (302) in which the electronic device (101) is fully folded, the second side (221) may be positioned between the first side (211) and the third side (231). For example, when the electronic device (101) is in a fully folded state, as the second side (221) is in proximity to the first conductive portion (310) and / or the third conductive portion (320) that act as a radiator, the second side (221) may affect the communication performance of the electronic device (101). For example, the second side (221) may affect the efficiency of an antenna (e.g., a first antenna (351)) that includes at least a portion of the first conductive portion (310) and / or the efficiency of an antenna (e.g., a second antenna (352)) that includes at least a portion of the third conductive portion (320).

[0106] For example, a current flow may be formed along the second side (221). If the direction of the current flowing along the second side (221) is opposite to the direction of the radiating current flowing along the first conductive portion (310) and / or the third conductive portion (320), a deterioration in the efficiency of the first antenna (351) and / or the second antenna (352) may be caused.

[0107] The flow of current formed in the second side (221) may cause a parasitic effect. For example, the second side (221) may include a second conductive portion (370) including a conductive material (e.g., metal). The second conductive portion (370) may be formed between the fifth non-conductive portion (425) and the sixth non-conductive portion (426) within the second side (221). The flow of current flowing along the second conductive portion (370), which is a conductor, may cause parasitic resonance by forming a virtual impedance, such as resistance, inductance, and / or capacitance, around the first conductive portion (310) and / or the third conductive portion (320), which act as radiators. 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), the signal in the frequency band to be transmitted and / or received through the first antenna (351) and / or the second antenna (352) may be interfered with by the parasitic resonance, thereby causing a deterioration in the efficiency of the first antenna (351) and / or the second antenna (352). For example, the operating frequency of the first antenna (351) and / or the second antenna (352) may include a signal having a frequency of about 0.93 GHz, and the parasitic resonance frequency caused by the structure of the foldable housing (200) may be about 1.1 GHz. However, the present invention is not limited thereto. The parasitic resonance caused by the structure of the foldable housing (200) may cause a deterioration in the efficiency of the first antenna (351) and / or the second antenna (352).

[0108] An electronic device (101) according to one embodiment may include a filter circuit (e.g., filter circuit (360) of FIG. 3A) for reducing efficiency degradation of the first antenna (351) and / or the second antenna (352). For example, the filter circuit (360) may be electrically connected to a portion (222) within the second side (221). For example, the filter circuit (360) may be disposed on a printed circuit board disposed within the second housing portion (220). For example, the filter circuit (360) may be electrically connected to a portion (222) within the second side (221) via a conductive connecting member (e.g., a C-clip).

[0109] For example, the filter circuit (360) can electrically connect the second side (221) and the ground. As a portion (222) within the second side (221) that is electrically connected to the filter circuit (360) is electrically connected to the ground, the flow of current flowing along the second side (221) can be controlled. For example, the direction in which the current flows can be controlled depending on the position of the portion (222). For example, the portion (222) to which the filter circuit (360) is electrically connected can be determined such that the direction of the current flowing along the second side (221) corresponds to the direction of the radial current formed along the first conductive portion (310) and / or the third conductive portion (320). For example, a portion (222) can be positioned on a path along which a current forming a parasitic resonance is transmitted to the second side (221), thereby controlling the direction of the current formed along the second side (221) and providing the current to the ground.

[0110] The first feed point (311), the first ground point (312), the second feed point (321), the second ground point (322), and a portion (222) to which the filter circuit (360) is electrically connected may be located within a segmented structure of the foldable housing (200) formed by a plurality of conductive portions and a plurality of non-conductive portions. For example, the first feed point (311) and the first ground point (312) may be located within a first conductive portion (310) formed between a first non-conductive portion (421) and a second non-conductive portion (422). For example, the second feed point (321) and the second ground point (322) may be located within a third conductive portion (320) formed between a third non-conductive portion (423) and a fourth non-conductive portion (424). For example, a portion (222) may be positioned within a second conductive portion (370) formed between a fifth non-conductive portion (425) and a sixth non-conductive portion (426).

[0111] For example, the filter circuit (360) may be configured to pass a signal on a parasitic resonant frequency band caused by the structure of the foldable housing (200). The filter circuit (360) may be configured to pass a signal corresponding to a predefined frequency range. The predefined frequency range may include a parasitic resonant frequency. For example, the filter circuit (360) may include, but is not limited to, a band-pass filter configured to pass a signal on a parasitic resonant frequency band (e.g., about 1.1 GHz) caused by the structure of the foldable housing (200). For example, the band-pass filter may be an LC filter including a capacitor and / or an inductor. For example, by the filter circuit (360) passing a signal on the parasitic resonant frequency band, interference of the parasitic resonance with the operating frequency of the first antenna (351) and / or the second antenna (352) may be reduced. Since the filter circuit (360) is configured to pass signals on the parasitic resonance frequency, signals on the frequency band (e.g., about 0.93 GHz) transmitted and / or received through the first antenna (351) including at least a portion of the first conductive portion (310) and / or the second antenna (352) including at least a portion of the third conductive portion (320) may not be provided to the second conductive portion (370). From the perspective that the filter circuit (360) blocks signals on the operating frequency (e.g., about 0.93 GHz) of the first antenna (351) and / or the second antenna (352) that is different from the predefined frequency range (e.g., about 1.1 GHz), the filter circuit (360) may function as a notch filter for the operating frequency.

[0112] For example, there may be more than one filter circuit (360). For example, the electronic device (101) may include another filter circuit electrically connected to another point on the second side (221). If the parasitic resonance caused by the foldable structure is diverse, the electronic device (101) may include one or more other filter circuits for passing signals at each parasitic resonance frequency.

[0113] The descriptions of the electronic device (101) of FIG. 3b described above can be substantially equally applied to the electronic device (101') illustrated in FIG. 3c.

[0114] Referring to FIG. 3c, the foldable housing (200') may include a first side (211'), a second side (221'), and a third side (231'). For example, the first side (211') may include a first conductive part (310') formed between a first non-conductive part (421') and a second non-conductive part (422'). For example, the first conductive part (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 a ground of the electronic device (101'). For example, the third side (231') may include a third conductive part (320') formed between a third non-conductive part (423') and a fourth non-conductive part (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 side (221') may include a second conductive portion (370') formed between the fifth non-conductive portion (425') and the sixth non-conductive portion (426'). For example, a portion (222') electrically connected to the filter circuit (360) may be located within the second conductive portion (370'). The descriptions of the electronic device (101) described below may be substantially equally applied to the electronic device (101') illustrated in FIG. 3C.

[0115] FIG. 4A illustrates current flows formed on a side of an electronic device that does not include a filter circuit. FIG. 4B illustrates current flows formed on a side of an electronic device according to one embodiment that includes a filter circuit.

[0116] Referring to FIGS. 4A and 4B , the electronic device (101) may include a first conductive portion (310) formed along at least a portion of the first side (211), a second conductive portion (370) formed along at least a portion of the second side (221), and a third conductive portion (320) formed along at least a portion of the third side (231). In a fully folded state of the electronic device (101), the second side (221) may be positioned between the first side (211) and the third side (231). For example, in a folded state of the first housing portion (210), the second housing portion (220), and the third housing portion (230), the second side (221) may overlap the first side (211) and / or the third side (231).

[0117] The 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 the first conductive portion (310). For example, the second antenna may include at least a portion of the third conductive portion (320). When 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 positioned on the periphery of the electronic device (101). For example, the first antenna may include at least a portion of the first conductive portion (310) formed on the first housing portion (210) positioned on the periphery of the electronic device (101). For example, the second antenna may include at least a portion of the third conductive portion (320) formed on the third housing portion (230) positioned on the periphery of the electronic device (101).

[0118] States (401) and (402) of FIG. 4a illustrate currents formed on a side of an electronic device (101) that does not include a filter circuit (e.g., filter circuit (360) of FIG. 3a) when the first conductive portion (310) is energized within a fully folded state. For example, state (401) of FIG. 4a illustrates a flow of radiant current (401a) that forms an electromagnetic field for transmitting and / or receiving a signal on a designated frequency when a signal on a designated frequency is energized to the first conductive portion (310). For example, state (402) of FIG. 4a illustrates a flow of current (402a) that forms a parasitic resonance different from the designated frequency. 403 and 404 of FIG. 4A illustrate currents formed on a side of the electronic device (101) that does not include the filter circuit (360) when the third conductive portion (320) is energized within a fully folded state. For example, 403 of FIG. 4A illustrates a flow of radiant current (403a) that forms an electromagnetic field for transmitting and / or receiving a signal on a designated frequency when a signal on a designated frequency is energized to the third conductive portion (320). For example, 404 of FIG. 4A illustrates a flow of current (404a) that forms a parasitic resonance different from the designated frequency.

[0119] For example, the wireless communication circuit (340) may be configured to transmit and / or receive a signal on a designated frequency (e.g., about 0.93 GHz) via the first antenna and / or the second antenna. For example, the wireless communication circuit (340) may feed power to a first feed point of the first conductive portion (310) (e.g., the first feed point (311) of FIG. 3B) and / or a second feed point of the third conductive portion (320) (e.g., the second feed point (321) of FIG. 3B) in order to transmit and / or receive a signal on the designated frequency.

[0120] Referring to state (401) of Fig. 4a, when power is supplied to the first feed point (311), a flow of radiating current (401a) forming an electromagnetic field for transmitting and / or receiving a signal on a designated frequency band may be formed along the first conductive portion (310). For example, the flow of radiating current (401a) may be formed in a first direction (411). When the flow of radiating current (401a) is formed along the first conductive portion (310), a reverse current flow (401b) flowing in a second direction (412) opposite to the first direction (411) along the second side (221) may be formed due to a relative potential difference caused by the radiating current. The reverse current flow (401b) may deteriorate the efficiency of the first antenna by causing energy loss of the radiating current.

[0121] Referring to the state (402) of FIG. 4A, a current flow (402a) forming a parasitic resonance can be formed from an end of the third conductive portion (320) where a strong electromagnetic field is formed to an end of the first conductive portion (310). For example, the current flow (402a) forming a parasitic resonance can flow from the third conductive portion (320) through the second side (221) to the first conductive portion (310). For example, the current flow (402a) can be formed from a portion of the third side (231) including the third non-conductive portion (423), through a portion of the second side (221) including the fifth non-conductive portion (425), and to a portion of the first side (211) including the first non-conductive portion (421). By the flow of the above current (402a), an electromagnetic field forming a parasitic resonance can be formed.

[0122] Referring to 403 of FIG. 4A, when power is supplied to the second feed point (321), a flow of radiating current (403a) forming an electromagnetic field for transmitting and / or receiving a signal on a designated frequency band may be formed along the third conductive portion (320). For example, the flow of radiating current (403a) may be formed in a first direction (411). When the flow of radiating current (403a) is formed along the third conductive portion (320), a flow of reverse current (403b) flowing in a second direction (412) opposite to the first direction (411) along the second side (221) may be formed. The flow of reverse current (403b) may deteriorate the efficiency of the second antenna by causing energy loss of the radiating current.

[0123] Referring to 404 of FIG. 4A, a current flow (404a) forming a parasitic resonance may be formed from an end of a first conductive portion (310) where a strong electromagnetic field is formed to an end of a third conductive portion (320). For example, the current flow (404a) forming a parasitic resonance may flow from the first conductive portion (310) through the second side (221) to the third conductive portion (320). For example, the current flow (404a) may be provided from a portion of a first side (211) including a first non-conductive portion (421), through a portion of a second side (221) including a fifth non-conductive portion (425), and to a portion of a third side (231) including a third non-conductive portion (423). An electromagnetic field forming a parasitic resonance may be formed by the above-described current flow (404a). For example, if the parasitic resonance frequency (e.g., 1.1 GHz) corresponds to or is similar to the above-described frequency, the signal on the parasitic resonance frequency may interfere with the first antenna and / or the second antenna, thereby deteriorating the efficiency of the first antenna and / or the second antenna.

[0124] Referring to FIG. 4b, when the electronic device (101) includes a filter circuit (e.g., filter circuit (360) of FIG. 3a) that electrically connects the second side (221) to the ground, the deterioration of communication performance due to the reverse current and parasitic resonance can be reduced.

[0125] 405 and 406 of FIG. 4B illustrate currents formed on the side of an electronic device (101) including a filter circuit (360) when the first conductive portion (310) is energized within a fully folded state. For example, 405 of FIG. 4B illustrates a flow of radiant current (405a) that forms an electromagnetic field for transmitting and / or receiving a signal on a designated frequency when a signal on a designated frequency is energized to the first conductive portion (310). For example, 406 of FIG. 4B illustrates a flow of current (406a) that forms a parasitic resonance different from the designated frequency. 407 and 408 of FIG. 4B illustrate currents formed on the side of an electronic device (101) including a filter circuit (e.g., the filter circuit (360) of FIG. 3A) when the third conductive portion (320) is energized within a fully folded state. For example, 407 in FIG. 4b represents a flow of radiant current (407a) that forms an electromagnetic field for transmitting and / or receiving a signal on a designated frequency when a signal on a designated frequency is supplied to the third conductive portion (320). For example, 408 in FIG. 4b represents a flow of current (408a) that forms a parasitic resonance different from the designated frequency.

[0126] Referring to 405 of FIG. 4B, when power is supplied to the first feed point (311), a flow of radiant current (405a) forming an electromagnetic field for transmitting and / or receiving a signal on a designated frequency band may be formed along the first conductive portion (310). For example, the flow of radiant current (405a) may be formed in a first direction (411). For example, when the flow of radiant current (405a) is formed along the first conductive portion (310), a flow of current (405b) formed on the second side (221) may be directed in the first direction (411) by the filter circuit (360). Referring to 407 of FIG. 4B, when power is supplied to the second feed point (321), a flow of radiant current (407a) forming an electromagnetic field for transmitting and / or receiving a signal on a designated frequency band may be formed along the third conductive portion (320). For example, the flow of radiant current (407a) may flow in a first direction (411). For example, when the flow of radiant current (407a) is formed along the third conductive portion (320), a flow of current (407b) formed on the second side (221) may be directed in the first direction (411) by the filter circuit (360).

[0127] The filter circuit (360) can control the phase of the current formed in the second side (221) to be the same as the phase of the current formed in the first conductive portion (310) and / or the third conductive portion (320) by electrically connecting the second side (221) to the ground. For example, the flow of current (405a, 407a) formed in the second side (221) can flow in the same direction as the flow of current (405b, 407b) formed in the third conductive portion (320), thereby reducing energy loss due to reverse current.

[0128] Referring to 406 of FIG. 4B, a current flow (406a) forming a parasitic resonance may be formed from the first conductive portion (310) to the second side (221). When the current flow (406a) forming a parasitic resonance is formed from the first conductive portion (310) to the second side (221), the current flow (406a) may be formed along the second side (221) by a filter circuit (360) electrically connecting the second side (221) to the ground. For example, a portion (222) within the second side (221) electrically connected to the filter circuit (360) may be positioned on a path along which the current flow (406a) forming a parasitic resonance is provided from the first conductive portion (310) to the second side (221). By positioning the part (222) on the path, the current flow (406a) can be formed along the second side (221) without flowing to the third conductive part (320) through the second side (221).

[0129] Referring to 408 of FIG. 4B, a current flow (408a) forming a parasitic resonance may be formed from the third conductive portion (320) to the second side (221). For example, if a current flow (408a) forming a parasitic resonance is formed from the third conductive portion (320) to the second side (221), the current flow (408a) may be formed along the second side (221) by a filter circuit (360) electrically connecting the second side (221) to ground. For example, a portion (222) within the second side (221) electrically connected to the filter circuit (360) may be positioned on a path along which a current flow (408a) forming a parasitic resonance is provided from the third conductive portion (320) to the second side (221). By positioning the part (222) on the path, the current flow (408a) can be formed along the second side (221) without flowing to the first conductive part (310) through the second side (221).

[0130] The filter circuit (360) may be configured to pass a signal corresponding to a predefined frequency range. For example, the filter circuit (360) may include a bandpass filter configured to pass a signal on a parasitic resonant frequency. For example, the filter circuit (360) may include a capacitor having a capacitance value and / or an inductor having an inductance value for passing a signal on the parasitic resonant frequency. For example, the filter circuit (360) may include, but is not limited to, a capacitor having a value of about 3 pF and an inductor having a value of about 6.8 nF for passing a signal on a frequency of about 1.1 GHz.

[0131] As illustrated in FIG. 4b, when the electronic device (101) includes a filter circuit (360) that is electrically connected to a portion (222) within the second side (221) and electrically connects the second side (221) to ground, the reverse current formed by the radiation current for a signal on a frequency (e.g., 0.93 GHz) to be transmitted and / or received through the first antenna and / or the second antenna can be improved. For example, the filter circuit (360) is configured to pass a signal on a parasitic resonance frequency and block a signal on an operating frequency, thereby reducing efficiency degradation of the first antenna and / or the second antenna due to a signal on the parasitic resonance frequency.

[0132] Fig. 5a illustrates a side view of an electronic device according to a comparative example. Fig. 5b illustrates a side view of an electronic device according to one embodiment. Fig. 5c is a graph showing the efficiency of an antenna.

[0133] Referring to FIG. 5A, an electronic device (500) according to a comparative example may include a first antenna including a first conductive portion (510) and a second antenna including 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 be misaligned 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) among 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) among the first hinge portion (551) and the second hinge portion (552).

[0134] Referring to FIG. 5B, an electronic device (101) according to one embodiment may include a first antenna including a first conductive portion (310) and a second antenna including 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). When the first side (211), the second side (221), and the third side (231) are viewed from the front, the first feeding point (311) can be substantially aligned with the second feeding point (321). For example, when the first side (211), the second side (221), and the third side (231) are viewed from the front, the first grounding point (312) can be substantially aligned with the second grounding point (322). For example, the first feeding point (311) and the first grounding point (312) can be symmetrical with respect to the second feeding point (321) and the second grounding point (322) with respect to the second side (221).

[0135] Referring to FIG. 5C, the efficiency of the antenna of the electronic device (500) according to the comparative example and the efficiency of the antenna of the electronic device (101) according to one embodiment can be compared. 501 of FIG. 5C is a graph showing the efficiency of the first antenna and the efficiency of the second antenna according to frequency for the electronic device (500) according to the comparative example illustrated in FIG. 5A. The x-axis of the graph represents the frequency (unit: GHz (giga hertz)), and the y-axis of the graph represents the efficiency (unit: dB (decibel)).

[0136] The first graph (5011) of 501 represents the efficiency of the first antenna in the fully unfolded state. The second graph (5012) of 501 represents the efficiency of the second antenna in the fully unfolded state. The third graph (5013) of 501 represents the efficiency of the first antenna in the fully folded state. The fourth graph (5014) of 501 represents the efficiency of the second antenna in the fully folded state.

[0137] Referring to 501 of FIG. 5c, as 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 having a frequency of about 1 GHz, depending on the change in state, the efficiency of the first antenna may decrease from about -1 dB to about -14 dB. For example, for a signal having a frequency of about 1 GHz, depending on the change in state, the efficiency of the second antenna may decrease from about -4 dB to about -14 dB.

[0138] 502 of FIG. 5c is a graph showing the efficiency of the first antenna and the efficiency of the second antenna according to the frequency for the electronic device (101) according to one embodiment illustrated in FIG. 5b. The x-axis of the graph represents the frequency (unit: GHz), and the y-axis of the graph represents the efficiency (unit: dB).

[0139] The first graph (5021) of 502 represents the efficiency of the first antenna in the fully unfolded state. The second graph (5022) of 502 represents the efficiency of the second antenna in the fully unfolded state. The third graph (5023) of 502 represents the efficiency of the first antenna in the fully folded state. The fourth graph (5024) of 502 represents the efficiency of the second antenna in the fully folded state.

[0140] Referring to 502 of FIG. 5C, as the electronic device (101) according to one 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 having 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 in state. For example, for a signal having 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 in state.

[0141] Comparing 501 and 502 of FIG. 5c, the efficiency degradation of the first antenna and the second antenna according to the change in the state can be improved. For example, the efficiency degradation of the first antenna and the second antenna of the electronic device (101) according to one embodiment can be less than the efficiency degradation of the first antenna and the second antenna according to the comparative example. For example, in the electronic device (500) according to the comparative example, the efficiency degradation of the first antenna and the second antenna can be about -10 dB to about -13 dB. For example, in the electronic device (101) according to one embodiment, the efficiency degradation of the first antenna and the second antenna can be about -7 dB. When the first feed point (311) is substantially aligned with the second feed point (321) and / or the first ground point (312) is substantially aligned with the second ground point (322), the amount of efficiency degradation of the first antenna and the second antenna due to the electronic device (101) changing from a fully unfolded state to a fully folded state according to one embodiment can be reduced, thereby reducing deterioration of the communication performance of the electronic device (101).

[0142] Fig. 6a is a graph for verifying the difference in the radiation efficiency of an antenna due to a filter circuit. Fig. 6b is a graph for verifying the difference in the reflection coefficient of an antenna due to a filter circuit.

[0143] An electronic device (e.g., electronic device (101) of FIG. 3b) to be described through FIGS. 6a and 6b may be an electronic device (101) having a structure in which a first feed point (e.g., a first feed point (311) of FIG. 3b) and a second feed point (e.g., a second feed point (321) of FIG. 3b) are substantially aligned, and a first ground point (e.g., a first ground point (312) of FIG. 3b) and a second ground point (e.g., a second ground point (322) of FIG. 3b) are substantially aligned, as illustrated in FIGS. 3b and 5b.

[0144] As described above, a filter circuit according to one embodiment (e.g., filter circuit (360) of FIG. 3A) can improve communication performance of an electronic device (101) by improving reverse current and passing signals on a parasitic resonant frequency. The improvement in communication performance of the electronic device (101) by the filter circuit (360) can be confirmed through FIGS. 6A and 6B.

[0145] Figure 6a shows the efficiency of the first antenna and the second antenna depending on whether the filter circuit (360) is included in the electronic device (101) when it is completely closed. The x-axis of the graph represents the frequency (unit: GHz), and the y-axis of the graph represents the efficiency (unit: dB).

[0146] Referring to FIG. 6A, a first graph (601) represents the efficiency of a first antenna of an electronic device (101) including a filter circuit (360) according to one embodiment. A second graph (602) represents the efficiency of a second antenna of an electronic device (101) including a filter circuit (360) according to one embodiment. A third graph (603) represents the efficiency of a first antenna of an electronic device (101) not including a filter circuit (360). A fourth graph (604) represents the efficiency of a second antenna of an electronic device (101) not including a filter circuit (360). For example, a designated frequency of a signal to be transmitted and / or received through the first antenna and / or the second antenna may be approximately 0.93 GHz.

[0147] Comparing the first graph (601) and the third graph (603), the efficiency of the first graph (601) may be higher than the efficiency of the third graph (603) for a signal above about 0.93 GHz. The parasitic resonance frequency indicated by the first graph (601) may be greater than about 1.1 GHz, and the parasitic resonance frequency indicated by the third graph (603) may be about 1.1 GHz. For example, since the interference of the antenna due to parasitic resonance decreases as the difference between the specified frequency and the parasitic resonance frequency increases, the performance of the first antenna of the electronic device (101) including the filter circuit (360) may be higher than the performance of the first antenna of the electronic device (101) not including the filter circuit (360).

[0148] Comparing the second graph (602) and the fourth graph (604), the efficiency of the second graph (602) may be higher than the efficiency of the fourth graph (604) for a signal on about 0.93 GHz. The efficiency for a signal on the parasitic resonant frequency indicated by the second graph (602) may be lower than the efficiency for a signal on the parasitic resonant frequency indicated by the fourth graph (604). For example, referring to the difference between a specified frequency and the parasitic resonant frequency and the efficiency for a signal on the parasitic resonant frequency, the performance of the second antenna of the electronic device (101) including the filter circuit (360) may be higher than the performance of the second antenna of the electronic device (101) not including the filter circuit (360).

[0149] Fig. 6b shows the reflection coefficients of the first antenna and the second antenna depending on whether the filter circuit (360) is included in the electronic device (101) when it is completely closed. The x-axis of the graph represents the frequency (unit: GHz), and the y-axis of the graph represents the S-parameter (unit: dB (decibel)).

[0150] Referring to FIG. 6B, the fifth graph (605) represents a reflection coefficient of a first antenna of an electronic device (101) including a filter circuit (360) according to one embodiment. The sixth graph (606) represents a reflection coefficient of a second antenna of an electronic device (101) including a filter circuit (360) according to one embodiment. The seventh graph (607) represents a reflection coefficient of a first antenna of an electronic device (101) not including a filter circuit (360). The eighth graph (608) represents a reflection coefficient of a second antenna of an electronic device (101) not including a filter circuit (360).

[0151] Referring to FIG. 6B, the fifth graph (605) and the sixth graph (606) for the electronic device (101) including the filter circuit (360) may have lower reflection coefficients for signals on a specified frequency than the seventh graph (607) and the eighth graph (608). The fifth graph (605) and the sixth graph (606) may have higher reflection coefficients for signals on a parasitic resonant frequency than the seventh graph (607) and the eighth graph (608). For example, since the filter circuit (360) is configured to pass signals on a parasitic resonant frequency, interference caused by signals on a parasitic resonant frequency can be reduced in the case of the electronic device (101) including the filter circuit (360). The communication performance for a specified frequency of an electronic device (101) including a filter circuit (360) can be improved compared to the communication performance for a specified frequency of an electronic device (101) not including a filter circuit (360).

[0152] FIG. 7A illustrates a side view of a second housing portion and a foldable housing of an electronic device according to one embodiment. FIG. 7B illustrates the efficiency of a first antenna according to the position of a portion. FIG. 7C illustrates the efficiency of a second antenna according to the position of a portion. FIG. 7D illustrates the efficiency of a first antenna according to the position of a portion within a second region. FIG. 7E illustrates the efficiency of a second antenna according to the position of a portion within a second region.

[0153] 700a of FIG. 7a schematically illustrates a top view of the electronic device (101) in a 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) may be covered by the third housing portion (230). A portion (222) electrically connected to the filter circuit (360) illustrated in 700a may be located within the second housing portion (220) covered by the third housing portion (230). 700b of FIG. 7a schematically illustrates a side view of the electronic device (101) in a fully folded state.

[0154] Referring to FIG. 7A, the filter circuit (360) may be electrically connected to a portion (222) within the second side (221). The portion (222) within the second side (221) to which the filter circuit (360) is electrically connected may be based on the positions of the first feed point (311) and the first ground point (312).

[0155] For example, a portion (222) within the second side (221) may correspond to a first area (710) between the first power supply point (311) and the first ground point (312). The structure in which the portion (222) corresponds to the first area (710) may be referred to as a structure in which, within a folded state of the first housing portion (210) and the second housing portion (220), the portion (222) is positioned within a second area (720) within the second side (221) overlapping the first area (710). For example, when the electronic device (101) is in a fully folded state, when looking at the side of the foldable housing (200), a portion (222) may be located within a second area (720) between a virtual first straight line (741) extending from the first power supply point (311) toward the second side (221) and a virtual second straight line (742) extending from the first ground point (312) toward the second side (221).

[0156] 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) may be substantially aligned with the first feed point (311) and the first ground point (312), respectively. For example, the second feed point (321) may be substantially aligned with the first feed point (311). For example, the second ground point (322) may be substantially aligned with the first ground point (312). For example, the first feed point (311) and the second feed point (321) may be located on the first straight line (741). For example, the first ground point (312) and the second ground point (322) may be located on the second straight line (742).

[0157] For example, the positions of the plurality of non-conductive portions positioned within the first side (211), the second side (221), and the third side (231) can be aligned with each other. For example, the first conductive portion (310) can be positioned between the first non-conductive portion (421) and the second non-conductive portion (422) within the first side (211). For example, the third conductive portion (320) can be positioned between the third non-conductive portion (423) and the fourth non-conductive portion (424) within the third side (231). For example, the second side (221) can include the fifth non-conductive portion (425) and the sixth non-conductive portion (426).

[0158] For example, the length of the first conductive portion (310) used as a radiator may correspond to the length of the third conductive portion (320). Since the length of the radiator affects the frequency characteristics (e.g., resonant frequency) of the antenna, in order to implement communication diversity, the length of the first conductive portion (310) may correspond to the length of the third conductive portion (320). For example, the first non-conductive portion (751) may be aligned with the third non-conductive portion (423). For example, the second non-conductive portion (422) may be aligned with the fourth non-conductive portion (424). For example, within a fully folded state of the electronic device (101), a first conductive portion (310) formed between a first non-conductive portion (751) and a second non-conductive portion (422) may overlap a third conductive portion (320) formed between a third non-conductive portion (423) and a fourth non-conductive portion (424). For example, a first grounding point (312) may be adjacent to a first non-conductive portion (751). For example, a second grounding point (322) may be adjacent to a third non-conductive portion (423).

[0159] For example, a portion (222) within the second side (221) may correspond to a first region (710) between the first feeding point (311) and the first grounding point (312) and a third region (730) between the second feeding point (321) and the second grounding point (322) within a fully folded state of the electronic device (101). For example, a second region (720) where the portion (222) is positioned may overlap the first region (710) and the third region (730) within a fully folded state of the electronic device (101).

[0160] When a part (222) is out of the second region (720), the effect of improving the communication performance of the electronic device (101) by the filter circuit (360) may be reduced. For example, when a part (222) is located within the second region (720), the flow of current within the second side (221) corresponding to the flow of the radial current flowing along the first conductive part (310) and / or the third conductive part (320) may be formed more smoothly. When a part (222) is located within the second region (720), it may be located on the path along which the current forming the parasitic resonance flows, thereby more effectively reducing the deterioration of the communication performance due to the parasitic resonance. For example, when a part (222) is located outside the second region (720), the reverse current reduction effect and the deterioration reduction effect due to the parasitic resonance may be reduced.

[0161] Referring to FIGS. 7b and 7c, when a portion (e.g., a portion (222) of FIG. 7a) deviates from a second region (e.g., a second region (720) of FIG. 7a), a decrease in the efficiency of the first antenna and the efficiency of the second antenna can be confirmed.

[0162] The first graph (700-1) of FIG. 7b shows the efficiency of the first antenna when a portion (222) is positioned at a position corresponding to a first grounding point (e.g., the first grounding point (312) of FIG. 7a) and a second grounding point (e.g., the second grounding point (322) of FIG. 7a). The portion (222) at the position corresponding to the first grounding point (312) and the second grounding point (322) may be referred to as a case where the portion (222) is positioned on a second straight line (e.g., the second straight line (742) of FIG. 7a). The second graph (700-2) shows the efficiency of the first antenna when a portion (222) is positioned at a position corresponding to a first feed point (e.g., the first feed point (311) of FIG. 7a) and a second feed point (e.g., the second feed point (321) of FIG. 7a). For example, a part (222) corresponding to the first grounding point (312) and the second grounding point (322) may be referred to as a case where the part (222) is located on the first straight line (e.g., the first straight line (741) of FIG. 7a). The third graph (700-3) represents the efficiency of the first antenna when the part (222) is located between the first hinge part (e.g., the first hinge part (251) of FIG. 7a) and the fifth non-conductive part (e.g., the fifth non-conductive part (425) of FIG. 7a). The fourth graph (700-4) represents the efficiency of the first antenna when the part (222) is located between the second area (720) and the second hinge part (e.g., the second hinge part (252) of FIG. 7a).

[0163] Referring to Fig. 7b, when a portion (222) goes out of the second region (720), the efficiency of the first antenna may decrease. For example, the efficiencies indicated by the first graph (700-1) and the second graph (700-2) may be higher than the efficiencies indicated by the third graph (700-3) and the fourth graph (700-4). Since the first graph (700-1) shows the highest efficiency, the efficiency of the first antenna may be the highest when the portion (222) is positioned at a position corresponding to the first grounding point (312) and the second grounding point (322). Referring to the third graph (700-3), when a portion (222) goes out of the second region (720), the efficiency of the first antenna may decrease. Referring to the fourth graph (700-4), when a portion (222) moves away from the second region (720) and closer to the second hinge portion (252), the resonant frequency of the first antenna may decrease, and the efficiency of the first antenna may decrease. As illustrated in FIG. 7b, when a portion (222) to which the filter circuit (360) is electrically connected is located within the second region (720), the efficiency of the first antenna may be high.

[0164] The fifth graph (700-5) of FIG. 7c shows the efficiency of the second antenna when a portion (222) is positioned at a position corresponding to the first grounding point (312) and the second grounding point (322). For example, a portion (222) at a position corresponding to the first grounding point (312) and the second grounding point (322) may be referred to as a case where the portion (222) is positioned on the second straight line (742). The sixth graph (700-6) shows the efficiency of the second antenna when a portion (222) is positioned at a position corresponding to the first feeding point (311) and the second feeding point (321). For example, a portion (222) at a position corresponding to the first grounding point (312) and the second grounding point (322) may be referred to as a case where the portion (222) is positioned on the first straight line (741). The seventh graph (700-7) shows the efficiency of the second antenna when a portion (222) is positioned between the first hinge portion (251) and the fifth non-conductive portion (425). The eighth graph (700-8) shows the efficiency of the second antenna when a portion (222) is positioned between the second region (720) and the second hinge portion (252).

[0165] Referring to Fig. 7c, when a portion (222) goes out of the second region (720), the efficiency of the second antenna may decrease. For example, the efficiency indicated by the fifth graph (700-5) and the sixth graph (700-6) may be higher than the efficiency indicated by the seventh graph (700-7) and the eighth graph (700-8). Since the fifth graph (700-5) indicates the highest efficiency, the efficiency of the second antenna may be the highest when the portion (222) is positioned at a position corresponding to the first grounding point (312) and the second grounding point (322). Referring to the seventh graph (700-7), when a portion (222) goes out of the second region (720), the efficiency of the second antenna may decrease. Referring to the eighth graph (700-8), when a portion (222) moves away from the second region (720) and closer to the second hinge portion (252), the resonant frequency of the second antenna may decrease, and the efficiency of the second antenna may decrease. As illustrated in FIG. 7c, when a portion (222) to which the filter circuit (360) is electrically connected is located within the second region (720), the efficiency of the second antenna may be high.

[0166] For example, as the position of a portion (222) within the second region (720) changes, the efficiency of the first antenna and / or the second antenna may change. For example, assuming the position of the second straight line (742) illustrated in FIG. 7A as the origin and the position of the first straight line (741) as a position spaced 5 from the origin, referring to FIGS. 7D and 7E, the change in the efficiency of the first antenna and the second antenna may be confirmed depending on the position between the second straight line (742) and the first straight line (741).

[0167] Referring to FIG. 7d, the first graph (700-9) represents the efficiency of the first antenna when a portion (222) is positioned at the origin (e.g., on the second straight line (742)). The second graph (700-10) represents the efficiency of the first antenna when a portion (222) is positioned at a distance of 1 from the origin. The third graph (700-11) represents the efficiency of the first antenna when a portion (222) is positioned at a distance of 2 from the origin. The fourth graph (700-12) represents the efficiency of the first antenna when a portion (222) is positioned at a distance of 3 from the origin. The fifth graph (700-13) represents the efficiency of the first antenna when a portion (222) is positioned at a distance of 4 from the origin. The sixth graph (700-14) shows the efficiency of the first antenna when a portion (222) is positioned at a distance of 5 from the origin (e.g., on the first straight line (741)).

[0168] Referring to FIG. 7e, the seventh graph (700-15) represents the efficiency of the second antenna when a portion (222) is positioned at the origin (e.g., on the second straight line (742)). The eighth graph (700-16) represents the efficiency of the second antenna when a portion (222) is positioned at a distance of 1 from the origin. The ninth graph (700-17) represents the efficiency of the second antenna when a portion (222) is positioned at a distance of 2 from the origin. The tenth graph (700-18) represents the efficiency of the second antenna when a portion (222) is positioned at a distance of 3 from the origin. The eleventh graph (700-19) represents the efficiency of the second antenna when a portion (222) is positioned at a distance of 4 from the origin. The 12th graph (700-20) shows the efficiency of the second antenna when a portion (222) is positioned at a distance of 5 from the origin (e.g., on the first straight line (741)).

[0169] Referring to FIGS. 7d ​​and 7e, when a portion (222) is positioned at a position 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 signal on a designated frequency (e.g., 0.93 GHz) may be highest. As the position of the portion (222) moves away from a position aligned with the first ground point (312) and / or the second ground point (322) within the second region (720), the efficiency of the first antenna and / or the second antenna may decrease. For example, since the filter circuit (360) controls the flow of current formed on the second side (221) by providing the current provided from the first conductive portion (310) and / or the third conductive portion (320) to the second side (221) to the ground, when a portion (222) is positioned between the first ground point (312) and the second ground point (322) where the current is concentrated, the effect of the filter circuit (360) can be enhanced. However, the position 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 positioned within the second region (720), the communication performance of the electronic device (101) can be improved.

[0170] FIG. 8 illustrates a side view of an electronic device according to one embodiment.

[0171] As described above, the second feed point (321) may be substantially aligned with the first feed point (311), and the second ground point (322) may be substantially aligned with the first ground point (312). 'Substantially aligned' may also include a case where the first region (710) and the third region (730) partially overlap, 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 on a straight line.

[0172] Referring to FIG. 8, the first region (710) may not completely overlap with the third region (730), but may partially overlap with it. For example, even when the first feeding point (311) and the second feeding point (321) are not positioned on a straight line, and / or the first grounding point (312) and the second grounding point (322) are not positioned on a straight line, the first region (710) between the first feeding point (311) and the first grounding point (312) may partially overlap with the third region (730) between the second feeding point (321) and the second grounding point (322).

[0173] When the electronic device (101) is in a fully folded state, when looking at the side of the foldable housing (200), a portion (222) may be positioned between a first imaginary straight line (810) extending from the first ground point (312) toward the second side (221) and a second imaginary straight line (820) extending from the second ground point (322) toward the second side (221). For example, the portion (222) may be positioned between a first point (830) within the second side (221) aligned with the first ground point (312) and a second point (840) within the second side (221) aligned with the second ground point (322). Since it may be difficult to control the flow of current by the filter circuit (360) if the part (222) is too far away from the non-conductive part (e.g., the fifth non-conductive part (425)), the position of the part (222) may be limited to between the first point and the second point. By positioning the part (222) electrically connected to the filter circuit (360) between the first point and the second point, it may be possible to improve the communication performance of the electronic device (101) by the filter circuit (360).

[0174] FIG. 9A illustrates a side view of an electronic device according to one embodiment. FIG. 9B illustrates the efficiency of a first antenna depending on whether the electronic device illustrated in FIG. 9A includes a filter circuit. FIG. 9C illustrates the efficiency of a second antenna depending on whether the electronic device illustrated in FIG. 9A includes a filter circuit.

[0175] The electronic device (101) described above is illustrated as having a structure in which a plurality of non-conductive portions positioned within the first side (211), the second side (221), and the third side (231) are aligned with each other, but is not limited thereto. Referring to FIG. 9A, the plurality of non-conductive portions included within the side surfaces may be at least partially misaligned.

[0176] Referring to FIG. 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) within the second side (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) within the second side (221) can be misaligned with the second non-conductive portion (422) and the fourth non-conductive portion (424). A portion (222) within the second side (221) that is electrically connected to the filter circuit (e.g., the filter circuit (360) of FIG. 3A) may correspond to a first region (710) between the first feed point (311) and the first ground point (312) and a third region (730) between the second feed point (321) and the second ground point (322).

[0177] Even in the case of the electronic device (101) illustrated in FIG. 9A, communication performance may be improved by the filter circuit (360). When the first conductive portion (310) and / or the third conductive portion (320) operates as a radiator, the direction of the current formed in the second side (221) may correspond to the direction of the radiated current formed in the first conductive portion (310) and / or the third conductive portion (320) by the filter circuit (360). For example, the filter circuit (360) may be configured to pass a signal on a parasitic resonance frequency, thereby reducing efficiency degradation of the first antenna and / or the second antenna.

[0178] Referring to FIGS. 9b and 9c, communication performance can be compared depending on whether an electronic device (101) including at least partially misaligned non-conductive portions includes a filter circuit (360).

[0179] Referring to FIG. 9B, a first graph (901) represents the efficiency of a first antenna when the electronic device (101) includes a filter circuit (360). A second graph (902) represents the efficiency of a second antenna when the electronic device (101) includes a filter circuit (360). A third graph (903) represents the efficiency of a first antenna when the electronic device (101) does not include a filter circuit (360). A fourth graph (904) represents the efficiency of a second antenna when the electronic device (101) does not include a filter circuit (360). The x-axis of the graphs in FIG. 9B represents a frequency (unit: GHz), and the y-axis of the graphs represents an efficiency (unit: dB).

[0180] For example, in a frequency range of about 0.9 GHz to about 0.99 GHz, the efficiency represented by the first graph (901) may be higher than the efficiency represented by the third graph (903). For example, in a frequency range of about 0.9 GHz to about 0.96 GHz, the efficiency represented by the second graph (902) may be higher than the efficiency represented by the fourth graph (904). For example, when the operating frequencies of the first antenna and the second antenna are set to about 0.93 GHz, the efficiency of the first antenna and the second antenna for the operating frequency may be increased by including the filter circuit (360). For example, in an electronic device (101) in FIG. 9A where non-conductive portions of a foldable housing (200) are at least partially misaligned, the communication performance of the electronic device (101) can be improved by electrically connecting the filter circuit (360) to a portion (222) of the second side (221).

[0181] Referring to FIG. 9c, the fifth graph (905) represents the reflection coefficient of the first antenna when the electronic device (101) includes the filter circuit (360). The sixth graph (906) represents the reflection coefficient of the second antenna when the electronic device (101) includes the filter circuit (360). The seventh graph (907) represents the reflection coefficient of the first antenna when the electronic device (101) does not include the filter circuit (360). The eighth graph (908) represents the reflection coefficient of the second antenna when the electronic device (101) does not include the filter circuit (360). The x-axis of the graphs in FIG. 9b is a frequency (unit: GHz), and the y-axis of the graphs is an S-parameter (unit: dB).

[0182] For example, the reflection coefficient represented by the fifth graph (905) may be lower than the reflection coefficient represented by the seventh graph (907). For example, the reflection coefficient represented by the sixth graph (906) may be substantially the same as or lower than the reflection coefficient represented by the eighth graph (908). However, in the case of the eighth graph (908), since the difference between the operating frequency and the parasitic resonant frequency is relatively small, the performance of the second antenna may be higher if it includes the filter circuit (360). For example, in the case of the fifth graph (905) and the sixth graph (906), since there is no part where the reflection coefficient sharply decreases in a frequency range other than the operating frequency (e.g., about 0.96 GHz to about 0.97 GHz), the first antenna and the second antenna may have high performance in the operating frequency range.

[0183] As described above, the filter circuit (360) electrically connected to a portion (222) of the second side (221) can improve the communication performance of the electronic device (101) independently of the structure of the plurality of non-conductive portions positioned on the side of the foldable housing (200).

[0184] Fig. 10a is a block diagram of an electronic device according to one embodiment. Fig. 10b shows communication characteristics of the electronic device using a filter circuit.

[0185] As described with reference to FIG. 3A, the first antenna (351) and the second antenna (352) may provide a diversity function and / or a MIMO function. To provide the diversity function and / or the MIMO function, the first antenna (351) and the second antenna (352) may be electrically connected to an RF transceiver (341), as illustrated in FIG. 3A, respectively. For example, the first antenna (351) may be electrically connected to the RF transceiver (341) via a first RFFE (e.g., the first RFFE (343) of FIG. 3A). For example, the second antenna (352) may be electrically connected to the RF transceiver (341) via a second RFFE (e.g., the second RFFE (344) of FIG. 3A). For example, the electrical path between the RF transceiver (341) and the first antenna (351) and the electrical path between the RF transceiver (341) and the second antenna (352) may be independent to implement a diversity function and / or a MIMO function. However, the present invention is not limited thereto. For example, as illustrated in FIG. 10A, the electronic device (101) may include a first antenna (351) and a second antenna (352) configured to provide the same feed signal through a power branch circuit (345).

[0186] Referring to FIG. 10A, the electronic device (101) may include a power branch circuit (345). For example, the power branch circuit (345) may be 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, the three ports may be connected by an electrical path each having an impedance of 50 ohms. For example, a signal input from the RF transceiver (341) through the first port (345a) may be distributed to the second port (345b) and the third port (345c) so as to have equal power. For example, signals input to the second port (345b) and the third port (345c) through the first antenna (351) and the second antenna (352) can be combined into one signal and output to the first port (345a). For example, the power branching circuit (345) can be referred to as a divider, a splitter, and / or a coupler. For example, a transmission signal transmitted from the RF transceiver (341) can be provided to each of the first antenna (351) and the second antenna (352) by being distributed through the power branching circuit (345). For example, a reception signal received through the first antenna (351) and the second antenna (352) can be combined through the power branching circuit (345) and provided to the RF transceiver (341).

[0187] For example, in the case of an electronic device (101) including a power branch circuit (345), since the same signal is provided to the first antenna (351) and the second antenna (352), the phases of the current flowing along the first conductive portion (310) and the current flowing along the third conductive portion (320) may be the same. When signals of the same phase are provided to the first conductive portion (310) and the third conductive portion (320), the reverse current formed at the second side (221) is reduced, thereby reducing energy loss due to the reverse current. The electronic device (101) including the power branch circuit (345) may also improve communication performance by using the filter circuit (360) according to one embodiment. For example, the electronic device (101) may include the filter circuit (360) electrically connected to a portion (222) of the second side (221). For example, the filter circuit (360) can electrically connect the second side (221) to ground. For example, the filter circuit (360) can be configured to pass a signal above a parasitic resonance frequency in order to reduce parasitic resonance caused by the structure of the foldable housing (200).

[0188] Referring to FIG. 10b, an electronic device (101) that provides signals of the same phase to a first antenna (351) and a second antenna (352) by a power branch circuit (345) may have improved communication performance by including a filter circuit (360). A first graph (1001) of FIG. 10b shows the efficiency of an antenna when the electronic device (101) includes a filter circuit (360). A second graph (1002) of FIG. 10b shows the efficiency of an antenna when the electronic device (101) does not include a filter circuit (360).

[0189] Comparing the first graph (1001) and the second graph (1002), in a frequency range of about 0.9 GHz to about 0.95 GHz, the efficiency of the first graph (1001) may be higher than that of the second graph (1002). For example, even when signals of the same phase are provided to the first antenna (351) and the second antenna (352), the communication performance of the electronic device (101) including the filter circuit (360) may be higher than that of the electronic device (101) not including the filter circuit (360), because the filter circuit (360) is configured to control the flow of current formed in the second side (221) and pass a signal on the parasitic resonance frequency.

[0190] Fig. 11a illustrates a side view of an electronic device according to one embodiment. Fig. 11b illustrates the efficiency of the first antenna and the second antenna of the electronic device illustrated in Fig. 11a. Fig. 11c illustrates the reflection coefficients of the first antenna and the second antenna of the electronic device illustrated in Fig. 11a.

[0191] Although the above descriptions have been described with reference to drawings of electronic devices (e.g., electronic device (101) of FIG. 3B) having a structure in which the flexible display (271) is covered when in a fully folded state, the present disclosure is not limited thereto. For example, as illustrated in FIG. 11A, an electronic device (e.g., electronic device (101') of FIG. 3C) may have a structure in which a portion of the flexible display (271') is exposed when in a fully folded state.

[0192] Referring to FIG. 11A, when the first housing portion (210'), the second housing portion (220'), and the third housing portion (230') are completely folded, a portion of the flexible display (271') may be positioned outside the foldable housing (200'). For example, a portion of the flexible display (271') positioned outside the foldable housing (200') may be a portion of the flexible display (271') disposed on the third housing portion (230'). However, the present invention is not limited thereto. The electronic device (101') illustrated in FIG. 11A may be referred to as the electronic device (101') illustrated in FIGS. 2B and 3C.

[0193] Even in the case of the electronic device (101') illustrated in FIG. 11A, the aforementioned descriptions may be substantially equally applied. For example, the electronic device (101') may include a filter circuit (e.g., the filter circuit (360) of FIG. 3A) electrically connected to a portion (222') of the second side (221'). The filter circuit (360) may electrically connect the second side (221') to ground. For example, the filter circuit (360') may be configured to pass a signal on a parasitic resonant frequency, thereby reducing efficiency degradation of a first antenna including at least a portion of the first conductive portion (310') and / or a second antenna including at least a portion of the third conductive portion (320').

[0194] The graphs illustrated in FIG. 11b represent the efficiency of the first antenna and the second antenna depending on whether the electronic device (101') having the structure illustrated in FIG. 11a includes a filter circuit (360). The x-axis of the graph represents the frequency (unit: GHz), and the y-axis of the graph represents the efficiency (unit: dB). The first graph (1101) represents the efficiency of the first antenna when the electronic device (101) illustrated in FIG. 11a includes the filter circuit (360). The second graph (1102) represents the efficiency of the second antenna when the electronic device (101) illustrated in FIG. 11a includes the filter circuit (360). The third graph (1103) represents the efficiency of the first antenna when the electronic device (101) illustrated in FIG. 11a does not include the filter circuit (360). The fourth graph (1104) shows the efficiency of the second antenna when the electronic device (101) illustrated in FIG. 11a does not include a filter circuit (360).

[0195] Comparing the first graph (1101) and the third graph (1103), the first graph (1101) may have higher efficiency than the third graph (1103) in a frequency range of about 0.94 GHz or less. Comparing the second graph (1102) and the fourth graph (1104), the second graph (1102) may have higher efficiency than the fourth graph (1104) in a frequency range of about 0.94 GHz or less. For example, when the electronic device (101) includes a filter circuit (360), the direction of the current formed in the second side (221) by the filter circuit (360) may correspond to the direction of the radiated current formed in the first conductive portion (310) and / or the third conductive portion (320), so that energy loss due to reverse current may be reduced, and the efficiency of the first antenna and the second antenna may be improved. For example, the efficiency of the first antenna and the second antenna can be improved by configuring the filter circuit (360) to pass a signal on the parasitic resonance frequency.

[0196] The graphs illustrated in FIG. 11c represent reflection coefficients of the first antenna and the second antenna depending on whether the electronic device (101) of the structure illustrated in FIG. 11a includes a filter circuit (360). The x-axis of the graph represents a frequency (unit: GHz), and the y-axis of the graph represents an S parameter (unit: dB). The fifth graph (1105) represents the reflection coefficient of the first antenna when the electronic device (101) illustrated in FIG. 11a includes a filter circuit (360). The sixth graph (1106) represents the reflection coefficient of the second antenna when the electronic device (101) illustrated in FIG. 11a includes a filter circuit (360). The seventh graph (1107) represents the reflection coefficient of the first antenna when the electronic device (101) illustrated in FIG. 11a does not include a filter circuit (360). The eighth graph (1108) represents the reflection coefficient of the second antenna when the electronic device (101) illustrated in FIG. 11a does not include a filter circuit (360).

[0197] Comparing the fifth graph (1105) and the seventh graph (1107), the fifth graph (1105) may have a lower reflection coefficient than the seventh graph (1107) in a frequency range of about 0.9 GHz to about 1 GHz. Comparing the sixth graph (1106) and the eighth graph (1108), the sixth graph (1106) may have a lower reflection coefficient than the eighth graph (1108) in a frequency range of about 0.9 GHz to about 1 GHz. For example, when the electronic device (101) includes a filter circuit (360), the performance of the first antenna and the second antenna may be improved as the power that is reflected rather than radiated is reduced.

[0198] For example, the positions of the plurality of non-conductive portions on the side surfaces of the foldable housing (200) may vary. For example, the positions of the non-conductive portions (e.g., the first non-conductive portion (421) and / or the second non-conductive portion (422)) within the first side surface (211), the non-conductive portions (e.g., the fifth non-conductive portion (425) and / or the sixth non-conductive portion (426)) within the second side surface (221), and / or the non-conductive portions (e.g., the third non-conductive portion (423) and / or the fourth non-conductive portion (424)) within the third side surface (231) may vary. For example, even if the structure of the side surfaces of the foldable housing (200) is changed, the communication performance by the filter circuit (360) may be improved. Hereinafter, descriptions of various foldable structures are described.

[0199] FIG. 12A illustrates a side view of an electronic device according to one embodiment. FIG. 12B illustrates the efficiency of an antenna of the electronic device illustrated in FIG. 12A.

[0200] Referring to FIG. 12A, the length of the first conductive portion (310) formed within the first side (211) may be different from the length of the third conductive portion (320) formed within the third side (231). For example, the first non-conductive portion (421) within the first side (211) may be misaligned with the third non-conductive portion (423) within the third side (231). For example, the second non-conductive portion (422) within the first side (211) may be misaligned with the fourth non-conductive portion (424) within the third side (231). For example, the fifth non-conductive portion (425) within the second side (221) may be aligned with the first non-conductive portion (421). For example, the sixth non-conductive portion (426) within the second side (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 grounding point (312) may be misaligned with the second grounding point (322).

[0201] The graph of FIG. 12B shows the efficiency of the first antenna and the second antenna depending on whether the electronic device (101) illustrated in FIG. 12A includes a filter circuit (360). Referring to FIG. 12B, when the electronic device (101) illustrated in FIG. 12A includes a filter circuit (360), the efficiency of the first antenna and the second antenna may be improved. The x-axis of the graph represents the frequency (unit: GHz), and the y-axis of the graph represents the efficiency (unit: dB (decibel)).

[0202] Referring to FIG. 12B, a first graph (1201) represents the efficiency of a first antenna when the electronic device (101) illustrated in FIG. 12A includes a filter circuit (360). A second graph (1202) represents the efficiency of a second antenna when the electronic device (101) illustrated in FIG. 12A includes a filter circuit (360). A third graph (1203) represents the efficiency of a first antenna when the electronic device (101) illustrated in FIG. 12A does not include a filter circuit (360). A fourth graph (1204) represents the efficiency of a second antenna when the electronic device (101) illustrated in FIG. 12A does not include a filter circuit (360).

[0203] Comparing the first graph (1201) and the third graph (1203), the first graph (1201) can have an efficiency that is at most about 0.5 dB higher than the third graph (1203). Comparing the second graph (1202) and the fourth graph (1204), the second graph (1202) can have an efficiency that is at most about 0.7 dB higher than the fourth graph (1204). For example, independently of the structure of the foldable housing (200), the filter circuit (360) can enhance the communication performance of the electronic device (101) by improving the efficiency of the first antenna and the second antenna.

[0204] Fig. 13a illustrates a side view of an electronic device according to one embodiment. Fig. 13b illustrates the efficiency of an antenna of the electronic device illustrated in Fig. 13a.

[0205] Referring to FIG. 13A, the length of the first conductive portion (310) formed within the first side (211) may be different from the length of the third conductive portion (320) formed within the third side (231). For example, the first non-conductive portion (421) within the first side (211) may be aligned with the third non-conductive portion (423) within the third side (231). For example, the second non-conductive portion (422) within the first side (211) may be misaligned with the fourth non-conductive portion (424) within the third side (231). For example, the fifth non-conductive portion (425) within the second side (221) may be aligned with the first non-conductive portion (421). For example, the sixth non-conductive portion (426) within the second side (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, the present invention is not limited thereto. For example, the first feed point (311) and the first ground point (312) of the first conductive portion (310) may 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) may be aligned with the second feed point (321). For example, the first grounding point (312) can be aligned with the second grounding point (322).

[0206] The graph of FIG. 13b shows the efficiency of the first antenna and the second antenna depending on whether the electronic device (101) illustrated in FIG. 13a includes a filter circuit (360). Referring to FIG. 13b, when the electronic device (101) illustrated in FIG. 13a includes a filter circuit (360), the efficiency of the first antenna and the second antenna can be improved. The x-axis of the graph represents the frequency (unit: GHz), and the y-axis of the graph represents the efficiency (unit: dB (decibel)).

[0207] Referring to FIG. 13B, a first graph (1301) represents the efficiency of a first antenna when the electronic device (101) illustrated in FIG. 13A includes a filter circuit (360). A second graph (1302) represents the efficiency of a second antenna when the electronic device (101) illustrated in FIG. 13A includes a filter circuit (360). A third graph (1303) represents the efficiency of a first antenna when the electronic device (101) illustrated in FIG. 13A does not include a filter circuit (360). A fourth graph (1304) represents the efficiency of a second antenna when the electronic device (101) illustrated in FIG. 13A does not include a filter circuit (360).

[0208] Comparing the first graph (1301) and the third graph (1303), the first graph (1301) can have an efficiency that is at most about 0.7 dB higher than the third graph (1303). Comparing the second graph (1302) and the fourth graph (1304), the second graph (1302) can have an efficiency that is at most about 0.7 dB higher than the fourth graph (1304). For example, independently of the structure of the foldable housing (200), the filter circuit (360) can enhance the communication performance of the electronic device (101) by improving the efficiency of the first antenna and the second antenna.

[0209] Fig. 14a illustrates a side view of an electronic device according to one embodiment. Fig. 14b illustrates the efficiency of an antenna of the electronic device illustrated in Fig. 14a.

[0210] Referring to FIG. 14A, only one non-conductive portion may be positioned within the first side (211), the second side (221), and the third side (231). For example, a second non-conductive portion (422) may be positioned within the first side (211). For example, a fourth non-conductive portion (424) may be positioned within the third side (231) aligned with the second non-conductive portion (422). For example, a sixth non-conductive portion (426) may be positioned within the second side (221) aligned with the second non-conductive portion (422). 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, a portion (222) within the second side (221) may correspond to an area between the first feeding point (311) and the first grounding point (312) and an area between the second feeding point (321) and the second grounding point (322).

[0211] The graph of FIG. 14b shows the efficiency of the first antenna and the second antenna depending on whether the electronic device (101) illustrated in FIG. 14a includes a filter circuit (360). Referring to FIG. 14b, when the electronic device (101) illustrated in FIG. 14a includes a filter circuit (360), the efficiency of the first antenna and the second antenna can be improved. The x-axis of the graph represents the frequency (unit: GHz), and the y-axis of the graph represents the efficiency (unit: dB (decibel)).

[0212] Referring to FIG. 14B, a first graph (1401) represents the efficiency of a first antenna when the electronic device (101) illustrated in FIG. 14A includes a filter circuit (360). A second graph (1402) represents the efficiency of a second antenna when the electronic device (101) illustrated in FIG. 14A includes a filter circuit (360). A third graph (1403) represents the efficiency of a first antenna when the electronic device (101) illustrated in FIG. 14A does not include a filter circuit (360). A fourth graph (1404) represents the efficiency of a second antenna when the electronic device (101) illustrated in FIG. 14A does not include a filter circuit (360).

[0213] Referring to FIG. 14B, when the electronic device (101) includes a filter circuit (360), the resonance frequency of the first antenna and the resonance frequency of the second antenna may be shifted. For example, the first graph (1401) and the third graph (1403) may have high efficiency at a frequency ranging from about 0.93 GHz to about 0.95 GHz. For example, the second graph (1402) and the fourth graph (1404) may have high efficiency at a frequency ranging from about 0.87 GHz to about 0.89 GHz. For example, when the frequency of a 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) may shift the resonance of the first antenna and the second antenna to the target frequency. For example, the filter circuit (360) can improve the efficiency of the first antenna and the second antenna for signals on a specified frequency by changing the frequency characteristics of the first antenna and the second antenna to correspond to a specified frequency.

[0214] FIG. 15A illustrates a side view of an electronic device according to one embodiment. FIG. 15B illustrates the efficiency of a first antenna according to the location of the feed point and ground point of the electronic device according to one embodiment. FIG. 15C illustrates the efficiency of a second antenna according to the location of the feed point and ground point of the electronic device according to one embodiment.

[0215] 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 the aligned 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 high.

[0216] Referring to FIGS. 15A to 15C, 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, so that the efficiency of the first antenna and the efficiency of the second antenna can change. For example, in the case of the aligned structure, the third region (730) between the second feed point (321) and the second ground point (322) can at least partially overlap the 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 the first region (710), 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 third region (730) is spaced apart from the first region (710), each of the second feed point (321) and the second ground point (322) may be substantially misaligned with the first feed point (311) and the first ground point (312).

[0217] When the distance between the second feed point (321) and the second ground point (322) is constant, assuming that the position where the second ground point (322) is aligned with the first ground point (312) is the origin, the efficiency of the first antenna and the efficiency of the second antenna are described as the second ground point (322) is moved by 9 from the origin. When the second ground point (322) is located within the first portion (1500a) between the origin and the position where it is aligned with the first feed point (311), 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). When the second grounding point (322) is located within the second portion (1500b) between the position aligned with the first feeding point (311) and the position spaced apart from the origin by 9, each of the second feeding point (321) and the second grounding point (322) may not be substantially aligned with the first feeding point (311) and the first grounding point (312), and may be misaligned.

[0218] The graph illustrated in Fig. 15b shows the efficiency of the first antenna as the second grounding point (322) illustrated in Fig. 15a is moved by 9 from the origin. The x-axis of the graph represents the frequency (unit: GHz), and the y-axis of the graph represents the efficiency (unit: dB).

[0219] The first graph (1501) represents 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 graph (1502) represents the efficiency of the first antenna when the second grounding point (322) is spaced 1 from the origin. The third graph (1503) represents the efficiency of the first antenna when the second grounding point (322) is spaced 2 from the origin. The fourth graph (1504) represents the efficiency of the first antenna when the second grounding point (322) is spaced 3 from the origin.

[0220] The fifth graph (1505) shows the efficiency of the first antenna when the second grounding point (322) is spaced 4 units from the origin (e.g., when the second grounding point (322) is aligned with the first feed point (311). The sixth graph (1506) shows the efficiency of the first antenna when the second grounding point (322) is spaced 5 units from the origin. The seventh graph (1507) shows the efficiency of the first antenna when the second grounding point (322) is spaced 6 units from the origin. The eighth graph (1508) shows the efficiency of the first antenna when the second grounding point (322) is spaced 7 units from the origin. The ninth graph (1509) shows the efficiency of the first antenna when the second grounding point (322) is spaced 8 units from the origin. The tenth graph (1510) shows the efficiency of the first antenna when the second grounding point (322) is spaced 9 from the origin.

[0221] The first to fifth graphs (1501, 1502, 1503, 1504, 1505) above may be referred to as the efficiency of the first antenna when the second grounding point (322) is located within the first part (1500a). The sixth to tenth graphs (1506, 1507, 1508, 1509, 1510) above may be referred to as the efficiency of the first antenna when the second grounding point (322) is located within the second part (1500b).

[0222] The graph illustrated in Fig. 15c shows the efficiency of the second antenna as the second grounding point (322) illustrated in Fig. 15a is moved by 9 from the origin. The x-axis of the graph is the frequency (unit: GHz), and the y-axis of the graph is the efficiency (unit: dB).

[0223] The eleventh graph (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). The twelfth graph (1512) shows the efficiency of the second antenna when the second grounding point (322) is spaced 1 from the origin. The thirteenth graph (1513) shows the efficiency of the second antenna when the second grounding point (322) is spaced 2 from the origin. The fourteenth graph (1514) shows the efficiency of the second antenna when the second grounding point (322) is spaced 3 from the origin.

[0224] The fifteenth graph (1515) shows the efficiency of the second antenna when the second grounding point (322) is spaced 4 units from the origin (e.g., when the second grounding point (322) is aligned with the first feed point (311). The sixteenth graph (1516) shows the efficiency of the second antenna when the second grounding point (322) is spaced 5 units from the origin. The seventeenth graph (1517) shows the efficiency of the second antenna when the second grounding point (322) is spaced 6 units from the origin. The eighteenth graph (1518) shows the efficiency of the second antenna when the second grounding point (322) is spaced 7 units from the origin. The nineteenth graph (1519) shows the efficiency of the second antenna when the second grounding point (322) is spaced 8 units from the origin. The 20th graph (1520) shows the efficiency of the second antenna when the second grounding point (322) is spaced 9 units from the origin.

[0225] The above eleventh to fifteenth graphs (1511, 1512, 1513, 1514, 1515) may be referred to as the efficiency of the second antenna when the second grounding point (322) is located within the first portion (1500a). The above sixteenth to twentieth graphs (1516, 1517, 1518, 1519, 1520) may be referred to as the efficiency of the second antenna when the second grounding point (322) is located within the second portion (1500b).

[0226] For frequencies above about 0.92 GHz, the efficiency of the first antenna and the efficiency of the second antenna illustrated in FIGS. 15b and 15c can be referenced in [Table 1] below.

[0227] Second ground point location First antenna efficiency Second antenna efficiency Efficiency balance 0 (origin) -5.8-5.5 1.0 5 1-5.3-6.6 0.8 0 2-5.0-7.5 0.67 3-5.3-8.5 0 36 24-5.4-9.9 0.5 5 5-5.5-11.5 0.48 6-5.7-12.5 0.46 7-5.8-13.7 0.42 8-5.8-15.0 0.39 9-5.7-16.10.35

[0228] In the above [Table 1], the efficiency balance can be referred to as the ratio of the efficiency of the second antenna to the efficiency of the first antenna (e.g., efficiency of the second antenna / efficiency of the first antenna).

[0229] An electronic device (101) according to one embodiment may provide communication diversity and / or MIMO using a first antenna and a second antenna. In order to provide communication diversity and / or MIMO, the efficiency of the first antenna and the efficiency of the second antenna may be required to correspond to each other. For example, referring to [Table 1] above, when the second grounding point (322) is located within the second portion (1500b) (e.g., spaced apart by 6 from the origin), the efficiency of the first antenna may be higher than when the second grounding point (322) is located within the first portion (1500a) (e.g., located on the origin). In the above-described case, since the efficiency balance according to the change in the efficiency of the second antenna is relatively low, the diversity and / or MIMO performance may be degraded. Referring to the efficiency balance of the above [Table 1], the efficiency balance may be relatively high when the second feed point (321) and the second ground point (322) are substantially aligned with the first feed point (311) and the first ground point (312), respectively. For example, the efficiency balance may be highest when the second ground point (322) is positioned on 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 one embodiment, in order to increase the diversity and / or MIMO performance of the electronic device (101), 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), respectively.

[0230] 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 about 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 in a folded state. The wireless communication circuit (340) may be used for wireless communication. The first conductive portion (310) may be formed at least partially along the first side (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 the ground. The filter circuit (360) may be electrically connected to a portion (222) of the second conductive portion (370) within the second side (221) of the second housing portion (220). The filter circuit (360) may electrically connect the second conductive portion (370) within the second side (221) and the ground. The second housing part (220) may be positioned between the first housing part (210) and the third housing part (230) when the first housing part (210), the second housing part (220), and the third housing part (230) are folded. The portion (222) within the second side (221) may correspond to an area between the feeding point (311) of the first conductive part (310) and the grounding point (312) of the first conductive part (310) when the first housing part (210) and the second housing part (220) are folded.

[0231] For example, the filter circuit (360) may be configured to pass a signal corresponding to a predefined resonant frequency range. The predefined resonant frequency range may include a parasitic resonant frequency related to a frequency of a signal transmitted or received through the first conductive portion (310). The filter circuit (360) according to one embodiment may function as a notch filter for a signal transmitted and / or received through the first conductive portion (310) by selectively passing a parasitic resonant frequency band.

[0232] For example, the electronic device (101) may further include a third conductive portion (320). The third conductive portion (320) may be formed at least partially along a third side (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 the ground.

[0233] For example, the part (222) of the second conductive part (370) within the second side (221) may correspond to the area between the feeding point (311) of the first conductive part (310) and the grounding point (312) of the first conductive part (310) and the area between the feeding point (321) of the third conductive part (320) and the grounding point (322) of the third conductive part (320) in the folded state of the first housing part (210), the second housing part (220), and the third housing part (230).

[0234] For example, the feed point (311) of the first conductive portion (310) may be substantially aligned with the feed point (321) of the third conductive portion (320) in the folded state of the first housing portion (210) and the third housing portion (230). The ground point (312) of the first conductive portion (310) may be substantially aligned with the ground point (322) of the third conductive portion (320) in the folded state of the first housing portion (210) and the third housing portion (230).

[0235] For example, the area between the grounding point (312) of the first conductive portion (310) and the grounding point (322) of the third conductive portion (320) may partially overlap with the area between the grounding point (312) of the first conductive portion (310) and the grounding point (322) of the third conductive portion (320) when the first housing portion (210) and the third housing portion (230) are folded.

[0236] For example, the part (222) within the second side (221) may be positioned between a first point within the second side (221) aligned with the grounding point (312) of the first conductive part (310) and a second point within the second side (221) aligned with the grounding point of the third conductive part (320).

[0237] For example, an antenna including at least a portion of the first conductive portion (310) may be configured to operate as a primary antenna for transmitting or receiving a signal on a designated frequency band by being powered from the wireless communication circuit (340). An antenna including at least a portion of the third conductive portion (320) may be configured to operate as a diversity antenna for transmitting or receiving the signal by being powered from the wireless communication circuit (340).

[0238] For example, the first housing part (210) and the third housing part (230) may be positioned on the outside of the electronic device (101) in a folded state of the first housing part (210), the second housing part (220), and the third housing part (230).

[0239] For example, the filter circuit (360) may include a filter circuit configured to pass a signal corresponding to a parasitic resonant frequency. The parasitic resonant frequency may be different from the frequency of a signal transmitted or received through the first conductive portion (310).

[0240] For example, the second side (221) may overlap with the first side (211) in the folded state of the first housing part (210), the second housing part (220), and the third housing part (230).

[0241] For example, the part (222) within the second side (221) may be positioned on a path along which a current that forms a parasitic resonance caused by the structure of the foldable housing (200) is provided to the second side (221) in the folded state of the first housing part (210), the second housing part (220), and the third housing part (230).

[0242] For example, the direction of the current formed on the second side (221) may correspond to the direction of the radiating current formed along the first conductive portion (310).

[0243] For example, the electronic device (101) may further 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).

[0244] For example, the electronic device (101) may further include another filter circuit electrically connected to another point within the second side (221).

[0245] 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., a third conductive portion (320) of FIG. 3B). The 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) about 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) about a second folding axis (242) that is parallel to the first folding axis (241). The first conductive portion (310) may be formed at least partially along a first side 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). The filter circuit (360) may be electrically connected to a portion (222) of a second conductive portion (370) formed at least partially along a second side surface (221) of the second housing portion (220). The filter circuit (360) may electrically connect the second side surface (221) and ground. The third conductive portion (320) may be formed at least partially along a third side surface (231) of the third housing portion (230). The third conductive portion (320) may include a second power supply point (321) and a second ground point (322). The second housing portion (220) may be positioned between the first housing portion (210) and the third housing portion (230) when the first housing portion (210), the second housing portion (220), and the third housing portion (230) are folded.The part (222) within the second side (221) may correspond to a first region (710) between the first feeding point (311) and the first grounding point (312) and a second region (730) between the second feeding point (321) and the second grounding point (322).

[0246] For example, the first feed point (311) may be substantially aligned with the second feed point (321) in the folded state of the first housing portion (210) and the third housing portion (230). The first ground point (312) may be substantially aligned with the second ground point (322) in the folded state of the first housing portion (210) and the third housing portion (230).

[0247] For example, the first region (710) may partially overlap with the second region (730).

[0248] For example, the part (222) within the second side (221) may be positioned between a first point within the second side (221) corresponding to the first grounding point (312) and a second point within the second side (221) corresponding to the second grounding point (322).

[0249] For example, the filter circuit (360) may be configured to pass a signal corresponding to a predefined resonant frequency range. The predefined resonant frequency range may include a parasitic resonant frequency related to a frequency of a signal transmitted or received through the first conductive portion (310). The filter circuit (360) according to one embodiment may function as a notch filter for a signal transmitted and / or received through the first conductive portion (310) by selectively passing a parasitic resonant frequency band.

[0250] Electronic devices according to the various embodiments disclosed in this document may take various forms. Electronic devices may include, for example, portable communication devices (e.g., smartphones), computer devices, portable multimedia devices, portable medical devices, cameras, electronic devices, or home appliances. Electronic devices according to the embodiments of this document are not limited to the aforementioned devices.

[0251] The various embodiments of this document and the terminology used therein are not intended to limit the technical features described in this document to specific embodiments, but should be understood to include various modifications, equivalents, or substitutes of the embodiments. In connection with the description of the drawings, similar reference numerals may be used for similar or related components. The singular form of a noun corresponding to an item may include one or more of the items, unless the context clearly indicates otherwise. In this document, each of the phrases "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" can include any one of the items listed together in the corresponding phrase among those phrases, or all possible combinations thereof. Terms such as "first," "second," or "first" or "second" may be used merely to distinguish one component from another, and do not limit the components in any other respect (e.g., importance or order). When a component (e.g., a first component) is referred to as "coupled" or "connected" to another component (e.g., a second component), with or without the terms "functionally" or "communicatively," it means that the component can be connected to the other component directly (e.g., wired), wirelessly, or through a third component.

[0252] The term "module" used in various embodiments of this document may include a unit implemented in hardware, software, or firmware, and may be used interchangeably with terms such as logic, logic block, component, or circuit. A module may be an integral component, or a minimum unit or part of such a component that performs one or more functions. For example, according to one embodiment, a module may be implemented in the form of an application-specific integrated circuit (ASIC).

[0253] Various embodiments of the present document may be implemented as software (e.g., a program (140)) including one or more instructions stored in a storage medium (e.g., an internal memory (136) or an external memory (138)) readable by a machine (e.g., an electronic device (101)). For example, a processor (120) (e.g., the processor (120)) of a machine (e.g., an electronic device (101)) may call at least one instruction among the one or more instructions stored from the storage medium and execute it. This enables the machine to operate to perform at least one function according to the at least one called instruction. The one or more instructions may include code generated by a compiler or code executable by an interpreter. The machine-readable storage medium may be provided in the form of a non-transitory storage medium. Here, 'non-transitory' simply means that the storage medium is a tangible device and does not contain signals (e.g., electromagnetic waves), and the term does not distinguish between cases where data is stored semi-permanently or temporarily on the storage medium.

[0254] According to one embodiment, the method according to various embodiments disclosed in the present document may be provided as included in a computer program product. The computer program product may be traded as a product between a seller and a buyer. The computer program product may be distributed in the form of a machine-readable storage medium (e.g., compact disc read only memory (CD-ROM)), or may be distributed online (e.g., downloaded or uploaded) via an application store (e.g., Play Store™) or directly between two user devices (e.g., smart phones). In the case of online distribution, at least a portion of the computer program product may be temporarily stored or temporarily generated in a machine-readable storage medium, such as a memory (130) of a manufacturer's server, an application store's server, or a relay server.

[0255] According to various embodiments, each component (e.g., a module or a program) of the above-described components may include one or more entities, and some of the entities may be separated and placed in other components. According to various embodiments, one or more components or operations of the aforementioned components may be omitted, or one or more other components or operations may be added. Alternatively or additionally, a plurality of components (e.g., a module or a program) may be integrated into a single component. In such a case, the integrated component may perform one or more functions of each of the plurality of components identically or similarly to those performed by the corresponding component among the plurality of components prior to the integration. According to various embodiments, the operations performed by a module, program, or other component may be executed sequentially, in parallel, iteratively, or heuristically, or one or more of the operations may be executed in a different order, omitted, or one or more other operations may be added.

[0256] While the disclosure has been shown and described with reference to various embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the disclosure as defined by the appended claims and their equivalents.

Claims

1. In electronic devices, A foldable housing comprising a first housing portion, a second housing portion, and a third housing portion, wherein the foldable housing is configured to be foldable about 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 in a folded state with respect to each other; A wireless communication circuit for wireless communication; A first conductive portion formed at least partially along a first side 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 of the electronic device; and A filter circuit electrically connected to a portion of a second conductive portion formed at least partially along a second side surface of the second housing portion, and electrically connecting the second conductive portion of the second side surface and the ground; The above second housing section, In the folded state of the first housing part, the second housing part, and the third housing part, positioned between the first housing part and the third housing part, A part of said second challenging portion within said second side, In the folded state of the first housing portion and the second housing portion, corresponding to the area between the feeding point of the first conductive portion and the grounding point of the first conductive portion, Electronic devices.

2. In paragraph 1, The above filter circuit, configured to pass a signal corresponding to a predefined resonant frequency range, The above predefined resonant frequency range is, Including a parasitic resonant frequency related to the frequency of a signal transmitted or received through the first conductive portion; Electronic devices.

3. In either of paragraphs 1 and 2, Further comprising a third conductive portion formed at least partially along a third side surface of the third housing portion perpendicular to the second folding axis, the third conductive portion including a power supply point electrically connected to the wireless communication circuit and a ground point electrically connected to the ground. Electronic devices.

4. In paragraph 3, A part of said second challenging portion within said second side, In the folded state of the first housing portion, the second housing portion, and the third housing portion, corresponding to the area between the feeding point of the first conductive portion and the grounding point of the first conductive portion and the area between the feeding point of the third conductive portion and the grounding point of the third conductive portion, Electronic devices.

5. In either of paragraphs 3 and 4, The above-mentioned first challenge portion's above-mentioned power point is, In the folded state of the first housing portion and the third housing portion, the third conductive portion is substantially aligned with the feeding point, The grounding point of the first challenging portion is, In the folded state of the first housing portion and the third housing portion, substantially aligned with the grounding point of the third conductive portion, Electronic devices.

6. In any one of paragraphs 3 to 5, The area between the grounding point of the first conductive portion and the grounding point of the third conductive portion is In the folded state of the first housing portion and the third housing portion, a region partially overlapping between the grounding point of the first conductive portion and the grounding point of the third conductive portion, Electronic devices.

7. In paragraph 6, A part of said second challenging portion within said second side, located between a first point within the second side aligned with the grounding point of the first conductive portion and a second point within the second side aligned with the grounding point of the third conductive portion; Electronic devices.

8. In any one of paragraphs 3 to 7, An antenna comprising at least a portion of the first challenging portion, By being powered from the above wireless communication circuit, it is configured to operate as a primary antenna for transmitting or receiving a signal on a designated frequency band, An antenna comprising at least a portion of the third challenging portion, configured to operate as a diversity antenna for transmitting or receiving the signal by being powered from the wireless communication circuit; Electronic devices.

9. In any one of paragraphs 1 to 8, The above first housing part and the above third housing part, In the folded state of the first housing part, the second housing part, and the third housing part, located on the outer side of the electronic device, Electronic devices.

10. In any one of paragraphs 1 to 9, The above filter circuit, A filter circuit configured to pass a signal corresponding to a parasitic resonance frequency, The above parasitic resonance frequency is, Different from the frequency of the signal transmitted or received through the first challenging portion, Electronic devices.

11. In any one of paragraphs 1 to 10, The second aspect above is, In the folded state of the first housing portion, the second housing portion, and the third housing portion, overlapping the first side surface, Electronic devices.

12. In any one of paragraphs 1 to 11, A part of said second challenging portion within said second side, In the folded state of the first housing part, the second housing part, and the third housing part, a current forming a parasitic resonance caused by the structure of the foldable housing is located on a path provided to the second side. Electronic devices.

13. In paragraph 12, The direction of the current formed on the second side is, Corresponding to the direction of the radiation current formed along the first conductive portion, Electronic devices.

14. In any one of paragraphs 1 to 13, A first hinge part arranged between the first housing part and the second housing part; and Further comprising a second hinge part disposed between the first housing part and the third housing part or between the second housing part and the third housing part. Electronic devices.

15. In any one of paragraphs 1 to 14, Further comprising another filter circuit electrically connected to another point within said second side; Electronic devices.

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