electronic devices

Abstract

This application discloses an electronic device, including a device body and an antenna assembly. The antenna assembly includes a metal enclosure plate, at least one metal partition plate, and at least two dielectric materials. The metal enclosure plate is disposed within the device body and forms a resonant cavity with the device body. The at least one metal partition plate is disposed within the resonant cavity and divides the resonant cavity into at least two sub-cavities. The at least two dielectric materials are disposed one-to-one with the at least two sub-cavities, with one type of dielectric material placed within one sub-cavity. Each sub-cavity has an independent opening for transmitting electromagnetic wave energy. This allows for the placement of at least two relatively independent resonant cavity antennas within a single resonant cavity, improving the utilization rate of the resonant cavity. The resonant cavity antennas can radiate electromagnetic wave energy in different directions, adapting to a wider range of user scenarios.

Description

Technical Field

[0001] This application belongs to the field of electronic equipment technology, and specifically relates to an electronic device. Background Technology

[0002] Resonant cavities are common electronic devices in the radio frequency / microwave field. By creating openings in a closed resonant cavity, electromagnetic field energy can be radiated outwards, forming an antenna. In recent years, resonant cavity antennas have seen significant development and application in the field of intelligent electronic devices. They offer excellent adaptability to the appearance of intelligent electronic devices and exhibit good antenna performance with high radiation efficiency.

[0003] Existing resonant cavity antennas typically use a single resonant cavity as the basic unit, forming the antenna by creating an opening in the cavity. However, using a single resonant cavity as the basic unit results in low space utilization; moreover, the antenna radiation characteristics obtained by this resonant cavity antenna are fixed, making it unsuitable for a wide range of user scenarios. Summary of the Invention

[0004] This application aims to provide an electronic device that at least solves one of the problems in the prior art: low space utilization of resonant cavities and inability of resonant cavity antennas to adapt to a wide range of user scenarios.

[0005] To solve the above-mentioned technical problems, this application is implemented as follows:

[0006] This application provides an electronic device, including: a device body and an antenna assembly. The antenna assembly includes: a metal enclosure plate, at least one metal partition plate, and at least two dielectric materials. The metal enclosure plate is disposed within the device body and forms a resonant cavity with the device body.

[0007] The at least one metal partition is disposed in the resonant cavity and divides the resonant cavity into at least two sub-cavities. The at least two media are disposed in a one-to-one correspondence with the at least two sub-cavities, and one of the media is placed in one of the sub-cavities.

[0008] Each of the sub-cavities has an independent opening, which is used to transmit electromagnetic wave energy.

[0009] In the embodiments of this application, the at least one metal partition can divide the resonant cavity into at least two sub-cavities. Since a medium is correspondingly disposed in each sub-cavity, and each sub-cavity is correspondingly provided with an opening, the sub-cavity can radiate electromagnetic wave energy outward through the opening to form a resonant cavity antenna. Thus, at least two relatively independent resonant cavity antennas can be disposed in one resonant cavity, which can improve the utilization rate of the resonant cavity. Moreover, the metal partition can isolate at least two resonant cavities, so that the resonant cavity antennas can radiate electromagnetic wave energy in different directions, which can adapt to a variety of user scenarios.

[0010] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0011] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0012] Figure 1 This is a schematic diagram of the exploded structure of a resonant cavity antenna according to an embodiment of this application;

[0013] Figure 2 This is a schematic diagram of the arrangement structure of a resonant cavity antenna according to an embodiment of this application;

[0014] Figure 3 yes Figure 1 The diagram shows the radiation pattern of the resonant cavity antenna.

[0015] Figure 4 This is an exploded view of another resonant cavity antenna according to an embodiment of this application;

[0016] Figure 5 yes Figure 4 The diagram shows the radiation pattern of the resonant cavity antenna.

[0017] Figure 6 This is a schematic diagram of the exploded structure of another resonant cavity antenna according to an embodiment of this application;

[0018] Figure 7 This is an exploded view of another resonant cavity antenna according to an embodiment of this application;

[0019] Figure 8 This is a reflection coefficient curve of a resonant cavity antenna according to an embodiment of this application.

[0020] Figure label:

[0021] 1 - Equipment body, 11 - Bracket, 12 - Frame, 121 - Top frame, 122 - Bottom frame, 123 - Side frame, 2 - Antenna assembly, 21 - Metal enclosure plate, 22 - Metal partition, 23 - Opening, 24 - Medium, 3 - Display screen. Detailed Implementation

[0022] The embodiments of this application will now be described in detail. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0023] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise stated, "multiple" means two or more. Furthermore, "and / or" in the specification and claims indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0024] In the description of this application, it should be understood that the terms "length", "width", "thickness", "upper", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0025] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0026] The following is combined with Figure 1 - Figure 7 This application describes an electronic device according to an embodiment of the present application.

[0027] like Figure 1 As shown, an exploded view of a resonant cavity antenna according to an embodiment of this application is illustrated. Figure 2As shown, a schematic diagram of the arrangement structure of a resonant cavity antenna according to an embodiment of this application is illustrated, in conjunction with Figure 1 and... Figure 2 Specifically, it may include: a device body 1 and an antenna assembly 2. The antenna assembly 2 may include: a metal enclosure plate 21, at least one metal partition plate 22, and at least two media 24. The metal enclosure plate 21 may be disposed inside the device body 1 and enclose the device body 1 to form a resonant cavity. At least one metal partition plate 22 may be disposed inside the resonant cavity and may divide the resonant cavity into at least two sub-cavities. At least two media 24 may be disposed one-to-one with at least two sub-cavities. One media 24 may be placed in one sub-cavity. Each sub-cavity may be provided with an independent opening 23, which may be used to transmit electromagnetic wave energy.

[0028] In this embodiment, at least one metal partition 22 can divide the resonant cavity into at least two sub-cavities. Since a medium 24 is provided in each sub-cavity, and each sub-cavity is provided with an opening 23, the sub-cavities can radiate electromagnetic wave energy outward through the openings to form a resonant cavity antenna. This allows at least two relatively independent resonant cavity antennas to be set in one resonant cavity, which can improve the utilization rate of the resonant cavity. Moreover, the metal partition 22 can isolate at least two sub-cavities, so that the resonant cavity antennas can radiate electromagnetic wave energy in different directions, which can adapt to a variety of user scenarios.

[0029] The electronic devices in this application include, but are not limited to, tablets, computers, smartwatches, and routers. Specifically, the electronic devices include, but are not limited to, network modules, audio output units, input units, sensors, display units, user input units, interface units, memory, and processors. The electronic devices may also include a power supply (such as a battery) to power the various components. The power supply can be logically connected to the processor through a power management system, thereby enabling functions such as charging, discharging, and power consumption management through the power management system. The electronic devices may include more components, combinations of certain components, or different component arrangements; these will not be elaborated further here.

[0030] Specifically, the device body 1 is an important component of the electronic device, and the metal enclosure plate 21 can be disposed inside the device body 1 and can be enclosed with the device body 1 to form a resonant cavity.

[0031] Specifically, the metal enclosure plate 21 can be connected to the top, bottom or middle position of the equipment body 1, and can be set according to the spatial layout of the equipment body 1. This application embodiment does not make specific limitations in this regard.

[0032] Furthermore, the device body 1 may include a support 11 and a frame 12. A metal enclosure plate 21 may be connected to the support 11 and the frame 12 respectively, and enclose the enclosure to form a resonant cavity. The frame 12 may include an upper frame 121, a lower frame 122, and a side frame 123. The resonant cavity may be located near the upper frame 121, or near the lower frame 122, or near the side frame 123. This application embodiment does not specifically limit this. Both the support 11 and the frame 12 can be metal structural components, specifically metal structural components made of metal materials, or surface-metallized structural components, such as surface metallization of plastic, metal etching on the surface of FPC, etc.

[0033] Specifically, the electronic device also includes a display screen 3, which can cover the device body 1, and the antenna assembly 2 can be disposed under the display screen 3.

[0034] Specifically, an opening 23 is formed in the sub-cavity, allowing the sub-cavity to radiate electromagnetic wave energy to the outside through the opening 23, thus forming a resonant cavity antenna. The shape of the opening 23 can be elliptical, square, circular, or irregular, and this embodiment does not specifically limit it.

[0035] Furthermore, the metal partition 22 can divide the resonant cavity into at least two independently configured sub-cavities, and each sub-cavity can be provided with an opening 23, forming at least two independently configured resonant cavity antennas. These at least two resonant cavity antennas can radiate electromagnetic wave energy in different directions, achieving diverse radiation characteristics. In practical applications, the at least two resonant cavity antennas operate independently without affecting each other. For example, only one resonant cavity antenna can radiate electromagnetic wave energy, or only both resonant cavity antennas can radiate electromagnetic wave energy, or at least two resonant cavity antennas can radiate electromagnetic wave energy simultaneously.

[0036] like Figure 1 and 2 As shown, a metal partition 22 can divide the resonant cavity into two sub-cavities, forming two resonant cavity antennas, thus realizing the multiplexing of the resonant cavity. Specifically, the opening 23 of one sub-cavity can be set on the device body 1, facing away from the display screen 3, so that the resonant cavity antenna can radiate electromagnetic wave energy in the direction away from the display screen 3; the opening 23 of the other sub-cavity can be set on the metal enclosure plate 21, facing the display screen 3, so that the resonant cavity antenna can radiate electromagnetic wave energy in the direction facing the display screen 3.

[0037] In practical applications, two metal partitions 22 can be used to divide the resonant cavity into at least two sub-cavities to form at least two resonant cavity antennas. The specific number of metal partitions 22 can be set according to the actual needs of the resonant cavity antennas, and this embodiment does not impose a specific limitation on this.

[0038] In practical applications, the materials of at least two media 24 can be the same or different, and this application embodiment does not specifically limit this.

[0039] In some other embodiments of this application, the device body 1 may include a bracket 11 and an upper frame 121. The upper frame 121 may be connected to the bracket 11 and the metal enclosure plate 21 respectively. The bracket 11, the upper frame 121 and the metal enclosure plate 21 may enclose to form a resonant cavity. A metal partition 22 may be disposed between the bracket 11 and the metal enclosure plate 21. An opening 23 may be disposed on at least one of the bracket 11, the upper frame 121 and the metal enclosure plate 21.

[0040] In this embodiment of the invention, the bracket 11, the upper frame 121, and the metal enclosure plate 21 enclose a resonant cavity, allowing the resonant cavity antenna to be mounted on the top of the device body 1. The opening 23 of the sub-cavity can be located on the bracket 11, the upper frame 121, or the metal enclosure plate 21, which increases the diversity of the opening 23's placement and thus the diversity of the resonant cavity antenna's radiation characteristics.

[0041] Specifically, the bracket 11 and the upper frame 121 can be metal structural components made of metal materials.

[0042] Specifically, the following explanation uses the example of a metal partition 22 dividing the resonant cavity into two sub-cavities. Other cases can be set up similarly:

[0043] Specifically, the openings 23 of both sub-cavities can be located on the metal enclosure plate 21, allowing both resonant cavity antennas to radiate electromagnetic wave energy towards the side facing the display screen 3. Furthermore, the openings 23 can be located at the top of the metal enclosure plate 21, creating a certain gap between the metal enclosure plate 21 and the upper frame 121. This allows electromagnetic wave energy to radiate outwards through the black border area on the side of the electronic device's display screen 3. Since the black border area is made of glass, it facilitates the transmission of electromagnetic wave energy, avoiding the need to create openings 23 on the upper frame 121 or the bracket 11. This improves the appearance of the upper frame 121 or the bracket 11, enhances the texture of the electronic device, and increases its structural stability.

[0044] like Figure 1 and 6 As shown, the opening 23 of one sub-cavity can be set on the bracket 11, and the opening 23 of the other sub-cavity can be set on the metal enclosure plate 21. The two resonant cavity antennas can be positioned along... Figure 3 The arrows shown radiate electromagnetic wave energy. Alternatively, one sub-cavity opening 23 can be located on the upper frame 121, and the other sub-cavity opening 23 can be located on the metal enclosure plate 21.

[0045] like Figure 4 As shown, the opening 23 of one sub-cavity can be set on the bracket 11, and the opening 23 of the other sub-cavity can be set on the upper frame 121. The two resonant cavity antennas can be positioned along... Figure 5 The arrows shown indicate the direction in which electromagnetic wave energy is radiated. For example... Figure 7 As shown, the openings 23 of both sub-cavities can be located on the upper frame 121. Alternatively, the openings 23 of both sub-cavities can be located on the bracket 11.

[0046] Furthermore, placing the opening 23 of the sub-cavity on the bracket 11 or the upper frame 121 can prevent the resonant cavity antenna from radiating electromagnetic wave energy towards the side facing the display screen 3, effectively reducing the electromagnetic wave energy radiated towards the human body and minimizing potential impacts on the human body. Moreover, since no opening 23 for radiating electromagnetic wave energy is provided on the display screen 3 side of the electronic device, the electronic device can achieve a full-screen appearance design, which better meets users' aesthetic requirements for electronic devices.

[0047] like Figure 1 As shown, the metal partition 22 can be arranged parallel to the bracket 11, and at least two sub-cavities can be independently arranged along the width direction of the upper frame 121.

[0048] In this embodiment, the metal partition 22 is arranged parallel to the support 11, which facilitates the division of the resonant cavity into multiple sub-cavities. At least two sub-cavities can be independently arranged along the width direction of the upper frame 121 to form multiple independently arranged resonant cavity antennas.

[0049] Furthermore, the metal partition 22 is arranged parallel to the bracket 11, specifically: the metal partition 22 is parallel to the bracket 11, and there is a gap between the metal partition 22 and the bracket 11.

[0050] like Figure 6 As shown, the metal partition 22 can be set perpendicular to the bracket 11, and at least two sub-cavities can be set independently along the length and / or thickness direction of the upper frame 121.

[0051] In this embodiment, the metal partition 22 is arranged perpendicularly to the bracket 11, which facilitates the division of the resonant cavity into multiple sub-cavities. At least two sub-cavities are independently arranged along the length and / or thickness direction of the upper frame 121, which can form multiple independently arranged resonant cavity antennas.

[0052] Furthermore, the metal partition 22 is arranged perpendicularly to the bracket 11, specifically: the metal partition 22 is perpendicular to the bracket 11, and the metal partition 22 abuts against the bracket 11.

[0053] like Figure 7As shown, the metal partition 22 includes a first straight portion and a first bent portion. The first straight portion is arranged parallel to the bracket 11, and the first bent portion is arranged perpendicular to the bracket 11. At least two sub-cavities are independently arranged along the width direction, length direction, and height direction of the upper frame 121, respectively.

[0054] In this embodiment, the first straight portion is arranged parallel to the support 11, and the first bent portion is arranged perpendicular to the support 11. This can increase the diversity of the metal partition 22, facilitate the division of the resonant cavity into different sub-cavities for setting different resonant cavity antennas, and also increase the number of resonant cavity antennas.

[0055] Specifically, the metal partition 22 can divide the resonant cavity into at least two sub-cavities of different sizes, enabling resonant cavity antennas to operate in at least two independent frequency bands. Furthermore, the operating frequency of the resonant cavity antenna can be related to its physical dimensions; the larger the physical dimensions of the resonant cavity antenna, the lower its operating frequency can be. The physical dimensions of the resonant cavity antenna include, but are not limited to, the volume of the sub-cavities. Figure 7 As shown, the metal partition 22 can divide the resonant cavity into two sub-cavities of different sizes, which can form a first resonant cavity antenna and a second resonant cavity antenna. The first resonant cavity antenna can be used to cover the high-frequency band, and the second resonant cavity antenna can be used to cover the low-frequency band. Specifically, as... Figure 8 As shown, curve B is the antenna reflection coefficient curve corresponding to the first resonant cavity antenna, and curve A is the antenna reflection coefficient frequency band corresponding to the second resonant cavity antenna. Here, the frequency value f1 < the frequency value f2, and the reflection coefficient is the ratio of the reflected wave to the incident wave at the antenna feed port.

[0056] Specifically, the first resonant cavity antenna and the second resonant cavity antenna can radiate electromagnetic wave energy in the same direction or in different directions. That is, both the high-frequency resonant cavity antenna and the low-frequency resonant cavity antenna can achieve radiation characteristics towards the display screen 3 side, the upper frame 121 side and the bracket 11 side. This can be determined by comprehensively considering factors such as user usage scenarios, product internal stacking design, product appearance design requirements, and the impact of antenna radiation on the human body. This application embodiment does not make specific limitations in this regard.

[0057] Optionally, the metal enclosure 21 may include a second bent portion and a second straight portion. The second straight portion may be opposite to the equipment body 1, and the second bent portion may be bent toward the equipment body 1 along the second straight portion.

[0058] In this embodiment, the second straight portion is opposite to the device body 1, and the second bent portion bends along the second straight portion toward the device body 1, so that the metal enclosure plate 21 and the device body 1 can be enclosed to form a resonant cavity.

[0059] Optionally, the metal enclosure 21 may include at least one of a metal structural component and a surface-metallized structural component; the metal partition 22 may include at least one of a metal structural component and a surface-metallized structural component.

[0060] In this embodiment, the metal enclosure plate 21 can be a metal structural component or a surface-metallized structural component, which can improve the structural diversity of the metal enclosure plate 21. The metal partition plate 22 can be a metal structural component or a surface-metallized structural component, which can improve the structural diversity of the metal partition plate 22.

[0061] Specifically, the metal structural component can be a structural component made of metal material; the surface metallized structural component can be a structural component that forms a metal structure on the surface of a substrate, such as: a structure that forms a metal layer on a non-metallic surface through various surface treatment technologies, or a structure that forms a metal pattern on the surface of a flexible substrate using an etching process, such as: metallization of plastic surfaces, etching metal on the surface of FPC, etc. The embodiments of this application do not specifically limit this.

[0062] Optionally, the electronic device may include a control module that can be electrically connected to the antenna assembly 2 for adjusting the operating state of the antenna assembly 2.

[0063] In this embodiment of the invention, the working state of the antenna assembly 2 can be adjusted by the control module. In this way, the working state of the resonant cavity antenna can be flexibly configured in combination with the external signal environment, user scenario requirements, user posture, etc.

[0064] Specifically, when users need faster signal transmission speeds, at least two resonant cavity antennas can be turned on simultaneously; when it is necessary to reduce the impact of the resonant cavity antennas on the human body, only the resonant cavity antennas that radiate electromagnetic wave energy in the direction away from the three sides of the display screen can be turned on, so that the electromagnetic wave energy radiated by the resonant cavity antennas can be kept away from the human body.

[0065] Optionally, at least two of the dielectric materials 24 can be made of the same material. In practical applications, choosing to use the same material for at least two dielectric materials 24 makes the setup of the resonant cavity antenna simpler and more convenient.

[0066] Optionally, the dielectric constant of dielectric 24 can be greater than 1.0. In practical applications, a dielectric constant greater than 1.0 for dielectric 24 can increase the electromagnetic wave energy radiated by the resonant cavity antenna.

[0067] Specifically, the relative permittivity of the dielectric material 24 can be greater than or equal to 1.0. For example, the relative permittivity of the dielectric material 24 can be 1.0, 1.5, 2.0, 3.0 or 3.5, etc. The embodiments of this application do not specifically limit this.

[0068] Specifically, the material of the medium 24 can be non-metallic materials such as air, plastic, ceramic, and glass. This application embodiment does not specifically limit the specific material of the medium 24.

[0069] Furthermore, the shape of the medium 24 can be a cylinder, a cube, a cone, or an irregular structure, including but not limited to... Figure 1 The shape shown in Figure 7 can be specifically determined by taking into account factors such as the operating frequency band of the resonant cavity antenna, the space occupied, the internal structure stacking, the structural strength of the product, the manufacturing process, and the assembly process. This application does not impose specific limitations on this aspect.

[0070] The electronic device described in this application has at least the following advantages:

[0071] In this embodiment, the at least one metal partition can divide the resonant cavity into at least two sub-cavities. Since a medium is disposed in each sub-cavity, and each sub-cavity has an opening, the sub-cavity can radiate electromagnetic wave energy outward through the opening to form a resonant cavity antenna. This allows at least two relatively independent resonant cavity antennas to be disposed in one resonant cavity, thereby improving the utilization rate of the resonant cavity. Moreover, the metal partition can isolate at least two resonant cavities, allowing the resonant cavity antennas to radiate electromagnetic wave energy in different directions, which can adapt to a variety of user scenarios.

[0072] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0073] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. An electronic device, characterized in that, include: The device body and antenna assembly, wherein the antenna assembly includes: a metal enclosure plate, at least one metal partition plate, and at least two dielectric materials, the metal enclosure plate being disposed within the device body and forming a resonant cavity therewith, wherein... The at least one metal partition is disposed in the resonant cavity and divides the resonant cavity into at least two sub-cavities. The at least two media are disposed in a one-to-one correspondence with the at least two sub-cavities, and one of the media is placed in one of the sub-cavities. Each of the sub-cavities is provided with an independent opening, which is used to transmit electromagnetic wave energy; The device body includes a support frame and an upper frame. The upper frame is connected to the support frame and the metal enclosure plate, and the support frame, the upper frame plate and the metal enclosure plate enclose the resonant cavity. The metal partition is disposed between the bracket and the metal enclosure plate; The opening is provided on at least one of the bracket, the upper frame, and the metal enclosure plate.

2. The electronic device according to claim 1, characterized in that, The metal partition is arranged parallel to the bracket, and the at least two sub-cavities are independently arranged along the width direction of the upper frame.

3. The electronic device according to claim 1, characterized in that, The metal partition is perpendicular to the bracket, and the at least two sub-cavities are independently arranged along the length and / or thickness direction of the upper frame.

4. The electronic device according to claim 1, characterized in that, The metal partition includes a first straight portion and a first bent portion, wherein the first straight portion is arranged parallel to the bracket and the first bent portion is arranged perpendicular to the bracket; The at least two sub-cavities are independently arranged along the width, length, and height directions of the upper frame, respectively.

5. The electronic device according to claim 1, characterized in that, The metal enclosure plate includes a second bent portion and a second straight portion, the second straight portion being opposite to the equipment body, and the second bent portion bending towards the equipment body along the second straight portion.

6. The electronic device according to claim 1, characterized in that, The metal enclosure panel includes at least one of: a metal structural component and a surface-metallized structural component; The metal partition includes at least one of the following: a metal structural component and a surface-metallized structural component.

7. The electronic device according to claim 1, characterized in that, The electronic device includes a control module, which is electrically connected to the antenna assembly and is used to adjust the operating state of the antenna assembly.

8. The electronic device according to claim 1, characterized in that, The materials of at least two media are the same.

9. The electronic device according to claim 1, characterized in that, The dielectric constant of the medium is greater than or equal to 1.0.

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