electronic devices

Abstract

This disclosure provides an electronic device, relating to the field of electronic device technology. The electronic device includes: a metal back shell, including a first side region and a second side region disposed adjacent to each other; a conductive element, which, together with the metal back shell, forms a resonant cavity. The resonant cavity includes a first radiating opening and a second radiating opening, the first radiating opening radiating towards the first side region, and the second radiating opening radiating towards the second side region; the conductive element includes a feeding section for feeding the conductive element to excite electromagnetic resonance within the resonant cavity, forming a cavity antenna. This electronic device, by setting a resonant cavity with dual radiating openings facing different side regions, effectively expands the antenna radiation space, improves radiation efficiency, and achieves miniaturization of the cavity antenna while supporting the operating frequency band, meeting the demand for highly integrated and thinner electronic devices.

Description

Technical Field

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

[0002] The trend towards multifunctional integration and high battery capacity in electronic devices has significantly reduced the available clearance and design space for antennas, posing challenges to antenna radiation environment and size design. Simultaneously, ever-increasing communication quality requirements necessitate high-performance antennas to achieve efficient and stable communication capabilities. Therefore, achieving both miniaturization and high performance of cavity antennas within a highly integrated hardware environment has become a significant challenge for current electronic devices. Utility Model Content

[0003] This disclosure provides an electronic device that improves antenna radiation efficiency by providing a resonant cavity with dual radiation openings.

[0004] According to a first aspect of the present disclosure, an electronic device is provided, comprising: a metal rear shell, the metal rear shell including a first side region and a second side region disposed adjacent to each other; a conductive member, the conductive member and the metal rear shell enclosing a resonant cavity, the resonant cavity including a first radiating opening and a second radiating opening, the radiation direction of the first radiating opening facing the first side region, and the radiation direction of the second radiating opening facing the second side region; the conductive member including a feeding portion, the feeding portion being used to feed the conductive member to excite electromagnetic resonance within the resonant cavity to form a cavity antenna.

[0005] In some embodiments of this disclosure, the conductive element includes a conductive plate; the conductive plate includes a first side where the first radiating opening is located and a second side where the second radiating opening is located, a first end of the first side is connected to a first end of the second side; the power supply part is located at the first end of the first side, or the power supply part is located at the first end of the second side.

[0006] In some embodiments of this disclosure, the first length between the feed section and the second end of the first side ranges from 1 / 4λ to 1 / 2λ, where λ is the wavelength corresponding to the operating frequency band of the cavity antenna.

[0007] In some embodiments of this disclosure, the second length between the feed section and the second end of the second side ranges from 1 / 4λ to 1 / 2λ, where λ is the wavelength corresponding to the operating frequency band of the cavity antenna.

[0008] In some embodiments of this disclosure, the power supply section is an extension structure integrally formed by bending the conductive plate.

[0009] In some embodiments of this disclosure, the conductive element further includes a connecting portion, and the conductive plate further includes a third side connected between the first side and the second side; one end of the connecting portion is connected to the third side, and the other end of the connecting portion is connected to the metal back shell.

[0010] In some embodiments of this disclosure, the connecting portion is an extension structure integrally formed by bending the conductive plate.

[0011] In some embodiments of this disclosure, the electronic device further includes a guide member connected between the connecting portion and the metal rear housing.

[0012] In some embodiments of this disclosure, the conductive plate is a metallic material with conductive properties.

[0013] In some embodiments of this disclosure, the electronic device further includes a screen mounted on the metal rear housing, and a conductive element located between the screen and the metal rear housing; the screen forms a first gap with the first side region, and the screen forms a second gap with the second side region, and the cavity antenna performs electromagnetic radiation based on the first gap and the second gap.

[0014] The technical solutions provided by the embodiments of this disclosure may include the following beneficial effects:

[0015] A resonant cavity with a first radiating opening and a second radiating opening is formed by enclosing a metal back shell and a conductive component. The first radiating opening faces a first side region of the metal back shell, and the second radiating opening faces a second side region of the metal back shell. The conductive component is fed through a feeding section to excite electromagnetic resonance within the resonant cavity, thereby forming a high-performance cavity antenna. In this electronic device, the resonant cavity formed by the metal back shell and the conductive component has two radiating openings, each facing a different side region, expanding the antenna radiation space and improving the antenna radiation efficiency. Furthermore, the dual-radiating-opening structure allows the resonant cavity to be smaller while supporting the antenna's operating frequency band, achieving miniaturized design of the cavity antenna. This meets the demands of highly integrated and thin electronic devices for antenna miniaturization and high performance, making it suitable for mobile phones, tablets, and other electronic devices.

[0016] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0017] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0018] Figure 1This is a structure of an electronic device according to an exemplary embodiment of the present disclosure. Figure 1 .

[0019] Figure 2 This is a structure of an electronic device according to an exemplary embodiment of the present disclosure. Figure 2 .

[0020] Figure 3 The structure of the conductive element shown in an exemplary embodiment of this disclosure Figure 1 .

[0021] Figure 4 The structure of the conductive element shown in an exemplary embodiment of this disclosure Figure 2 .

[0022] Figure 5 The structure of the conductive element shown in an exemplary embodiment of this disclosure Figure 3 .

[0023] Figure 6 This is a schematic diagram of the antenna simulation current of an electronic device according to an exemplary embodiment of the present disclosure.

[0024] Figure 7 This is a diagram showing the antenna performance of electronic devices in related technologies.

[0025] Figure 8 This is an antenna performance diagram of an electronic device illustrated in an exemplary embodiment of this disclosure.

[0026] Figure 9 This is a block diagram illustrating an electronic device according to an exemplary embodiment of the present disclosure. Detailed Implementation

[0027] Exemplary embodiments of this disclosure will be described in detail herein, examples of which are illustrated in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings denote the same or similar elements unless otherwise indicated. Various changes, modifications, and equivalents of the methods, apparatus, and / or systems described herein will become apparent upon understanding this disclosure. For example, the order of operations described herein is merely illustrative and is not limited to those orders set forth herein, but can be changed as will become apparent upon understanding this disclosure, except for operations that must be performed in a particular order. Furthermore, for clarity and brevity, descriptions of features known in the art may be omitted.

[0028] The embodiments described below, which are examples of some of the embodiments of this disclosure, do not represent all embodiments consistent with this disclosure. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this disclosure as detailed in the appended claims.

[0029] The specific implementation methods of the embodiments of this disclosure will now be described in detail with reference to the accompanying drawings.

[0030] Figure 1 This is a structure of an electronic device according to an exemplary embodiment of the present disclosure. Figure 1 For example, electronic devices can be tablets, mobile phones, e-readers, MP3 players, MP4 players, laptops, in-vehicle systems or desktop computers, portable terminals, laptop terminals, desktop terminals, action cameras, drones, monitor cameras, and similar products. Figure 1 and Figure 2 As shown, the electronic device includes a metal back cover 100 and a conductive element 200.

[0031] The metal back cover 100 includes a first side region 110 and a second side region 120 disposed adjacent to each other.

[0032] In this embodiment of the disclosure, the metal back cover 100 can be understood as the metal back cover of an electronic device, or as the back cover housing of an electronic device, wherein the back cover housing is formed by combining the back cover plate and the side frame of the electronic device.

[0033] In this embodiment, the first side region 110 and the second side region 120 are two adjacent areas of the metal back cover 100. For example, if the electronic device is a tablet computer or a flat-screen mobile phone, the first side region 110 and the second side region 120 may correspond to two adjacent sides of the device casing, such as the left side and the top side, or the right side and the bottom side. These two side regions are typically arranged perpendicularly to each other in space. By oriented the radiating openings towards these two directions, multi-directional signal coverage can be achieved, improving antenna radiation performance.

[0034] Figure 2 This is a structure of an electronic device according to an exemplary embodiment of the present disclosure. Figure 2 .in, Figure 2 It is Figure 1 The electronic device shown is displayed from a rotated perspective. This rotational display method... Figure 2 Provided with Figure 1 Different viewing angles make the structural details of electronic devices and the spatial relationships between their components clearly visible.

[0035] like Figure 2 As shown, the conductive element 200 and the metal back shell 100 enclose a resonant cavity 300. The resonant cavity 300 includes a first radiation opening 310 and a second radiation opening 320. The radiation direction of the first radiation opening 310 is toward the first side region 110, and the radiation direction of the second radiation opening 320 is toward the second side region 120.

[0036] In this embodiment, a resonant cavity 300 with two radiation openings is formed by a metal back shell 100 and a conductive element 200. The first radiation opening 310 radiates towards a first side region 110 and can emit or receive electromagnetic waves in that direction; the second radiation opening 320 radiates towards a second side region 120 and can emit or receive electromagnetic waves in that direction.

[0037] like Figure 1 As shown, the conductive element 200 includes a power supply section 210. The power supply section 210 is used to power the conductive element 200 to generate electromagnetic resonance within the resonant cavity 300, thereby forming a cavity antenna.

[0038] In the embodiments of this disclosure, after a radio frequency signal source is connected via the feed unit 210, current flows in the conductive component 200 and excites electromagnetic oscillations within the resonant cavity 300. When the signal frequency approaches the natural frequency of the resonant cavity 300, electromagnetic resonance is generated within the cavity, and the energy of the electric field and magnetic field periodically transforms into each other within the cavity, forming a stable electromagnetic field distribution. The natural frequency of the resonant cavity 300 corresponds to the operating frequency band of the cavity antenna, such as 2.4 GHz or 5 GHz, thereby ensuring efficient radiation performance within these operating frequency bands. The electromagnetic field generated by the resonance radiates outward through the first radiation opening 310 and the second radiation opening 320 to form electromagnetic waves, radiating towards the first side region 110 and the second side region 120.

[0039] The electronic device of this disclosure has a resonant cavity 300 formed by the metal back shell 100 and the conductive component 200 having two radiating openings facing different side regions, which expands the antenna radiation space and improves the antenna radiation efficiency. Furthermore, the dual radiating opening structure allows the resonant cavity to reduce its size while supporting the antenna operating frequency band, realizing the miniaturization design of the cavity antenna. This meets the needs of electronic devices for antenna miniaturization and high performance under the trend of high integration and thinness, and is suitable for electronic devices such as mobile phones and tablets.

[0040] In exemplary embodiments of this disclosure, such as Figure 1 and Figure 2 As shown, the electronic device also includes a screen 400. The screen 400 is mounted on a metal back cover 100, and a conductive element 200 is located between the screen 400 and the metal back cover 100. The screen 400 forms a first gap 410 with a first side region 110, and the screen 400 forms a second gap 410 with a second side region 120. The cavity antenna radiates electromagnetic radiation based on the first gap 410 and the second gap 420.

[0041] In this embodiment, the screen 400 can be understood as a display module of an electronic device, and the screen 400 is mounted on the metal back cover 100. There is a first gap 410 between the screen 400 and the first side area 110 of the metal back cover 100, and a second gap 420 between the screen 400 and the second side area 120 of the metal back cover 100. These two gaps are the gaps between the edge of the screen 400 and the side area of ​​the metal back cover 100.

[0042] The conductive element 200 is located between the screen 400 and the metal back cover 100. Together with the metal back cover 100, it forms a resonant cavity 300. The first gap 410 and the second gap 420 formed by the side of the screen 400 and the side area of ​​the metal back cover 100 become the radiation channels of the cavity antenna, so that electromagnetic waves can be radiated out through the first gap 410 and the second gap 420.

[0043] The electronic device of this disclosure uses the gap between the screen 400 and the metal back cover 100 as an antenna radiation channel, without the need for additional openings or changes to the shell structure. Furthermore, the design of the double gaps combined with the double radiation openings enables multi-directional radiation, thereby improving the spatial coverage and communication performance of the antenna.

[0044] Figure 3 The structure of the conductive element shown in an exemplary embodiment of this disclosure Figure 1 .like Figure 3 As shown, the conductive component 200 also includes a conductive plate 220. The conductive plate 220 includes a first side 221 where the first radial opening 310 is located and a second side 222 where the second radial opening 320 is located. The first end of the first side 221 is connected to the first end of the second side 222. The power supply part 210 is located at the first end of the first side 221, or the power supply part 210 is located at the first end of the second side.

[0045] In exemplary embodiments of this disclosure, the conductive plate 220 is a metallic material with conductive properties, such as stainless steel, steel, copper, aluminum, etc. Exemplarily, the conductive plate 220 can be a flexible printed circuit (FPC). FPCs can be freely bent in complex spatial layouts to adapt to the internal structures of devices of different shapes and sizes, making them suitable for compact electronic devices.

[0046] In this embodiment, the conductive plate 220 is a metal plate, metal sheet, or circuit board with conductive function, used to constitute the radiator of the cavity antenna. The conductive plate 220 includes a first side 221 and a second side 222 that are connected to each other. The first side 221 is on the side of the first radiation opening 310, and the second side 222 is on the side of the second radiation opening 320.

[0047] The first end of the first side 221 is connected to the first end of the second side 222. The first radiation interface 310 where the first side 221 is located and the second radiation interface 320 where the second side 222 is located are located in different side areas of the metal back cover 100. In order for the two radiation openings to correspond to different side areas, the first side 221 and the second side 222 are set at an angle.

[0048] If the first side 221 and the second side 222 are set at a 90-degree angle, then the following can be formed: Figure 3 The L-shape shown allows the two radiation openings to accurately face two adjacent side regions of the metal back shell 100, such as the top and right side, enabling signal radiation in both horizontal and vertical directions and expanding the signal coverage. Furthermore, the resonant cavity 300 formed by the L-shaped structure and the metal back shell 100 has a relatively regular geometry, which is beneficial for forming a stable electromagnetic resonant mode within the cavity.

[0049] In this embodiment of the present disclosure, the first end of the first side 221 is connected to the first end of the second side 222, and the power supply unit 210 can be selected to be located at the first end of the first side 221 or the first end of the second side 222. That is, the power supply unit 210 is located in the area near the intersection of the first side 221 and the second side 222, so that the current input from the radio frequency signal source can directly act on the first side 221 area and the second side 222 area of ​​the conductive plate 220.

[0050] like Figure 3 As shown, an opening 223 is provided in the connection area between the first side 221 and the second side 222. The opening 223 is used to fix the conductive plate 220. The power supply part 210 is provided on the first side 221 near the opening 223.

[0051] In an exemplary embodiment of this disclosure, if the length of the first side region 110 of the metal back cover 100 is greater than the length of the second side region 120, the power supply 210 can be disposed on the first side 221 near the second side 222. The first side region 110 corresponds to the first gap 410. If the side region is longer, the corresponding gap is also longer, which means that the electromagnetic wave radiation path in that direction is longer and more energy can be radiated. By disposing the power supply 210 on the side near the first gap 410, the radio frequency current can act more directly on the radiation path, thereby improving energy utilization.

[0052] In an exemplary embodiment of this disclosure, if the length of the second side region 120 of the metal back cover 100 is greater than the length of the first side region 110, the power supply 210 can be disposed on the second side 222 near the first side 221. The second side region 120 corresponds to the second gap 420. If the side region is longer, the corresponding gap is also longer, which means that the electromagnetic wave radiation path in that direction is longer and more energy can be radiated. By disposing the power supply 210 on the side near the second gap 420, the radio frequency current can act more directly on the radiation path, thereby improving energy utilization.

[0053] In the electronic device of this disclosure, the conductive plate 220 includes a first side 221 and a second side 222 connected to each other, corresponding to the first radiation opening 310 and the second radiation opening 320 respectively. The first end of the first side 221 is connected to the first end of the second side 222. The power supply part 210 is disposed at the first end of the first side 221 or the second side 222, that is, at the position close to the intersection of the two, so that the radio frequency current can more effectively excite the side regions where the two radiation openings are located, thereby improving the energy utilization rate and radiation efficiency.

[0054] In an exemplary embodiment of this disclosure, the first length between the feed section 210 and the second end of the first side 221 ranges from 1 / 4λ to 1 / 2λ, where λ is the wavelength corresponding to the operating frequency band of the cavity antenna.

[0055] The second end of the first side 221 is the end of the first side 221 that is away from the second side 222, and it is also the connection point between the first radiation opening 310 and the cavity. The first length between the feed section 210 and the second end of the first side 221 can be set to a range of 1 / 4λ to 1 / 2λ. For example, a first length of 1 / 4λ enables the conductive plate 220 to excite a λ / 4 standing wave resonant mode at the first side 221, thereby achieving good impedance matching and radiation performance.

[0056] In an exemplary embodiment of this disclosure, the second length between the feed section 210 and the second end of the second side 222 ranges from 1 / 4λ to 1 / 2λ, where λ is the wavelength corresponding to the operating frequency band of the cavity antenna.

[0057] The second end of the second side 222 is the end of the first side 221 that is away from the first side 221, and it is also the connection point between the second radiation opening 320 and the cavity. The second length between the feed section 210 and the second end of the second side 222 can be set to a range of 1 / 4λ to 1 / 2λ. For example, a second length of 1 / 4λ enables the conductive plate 220 to excite a λ / 4 standing wave resonant mode at the second side 222, thereby achieving good impedance matching and radiation performance.

[0058] In related technologies, cavity antennas are resonant cavities with one side open, and their radiation mode is a half-wavelength mode. In order to ensure that the cavity antenna resonates within the required operating frequency band, the cavity antenna size is designed to be approximately λ / 2×λ / 4.

[0059] In the electronic device of this disclosure, the first length between the power supply section 210 and the second end of the first side 221, and the second length between the power supply section 210 and the second end of the second side 222, are both set to λ / 4, so that the conductive plate 220 excites a λ / 4 standing wave resonant mode on the two radiating sides. Compared with the single-aperture λ / 2×λ / 4 resonant cavity design in related technologies, a double-aperture λ / 4×λ / 4 resonant cavity structure can be adopted. By working together with the two radiating ports, the cavity size can be reduced by half while maintaining the same operating frequency band, thereby improving radiation efficiency and achieving structural miniaturization.

[0060] In an exemplary embodiment of this disclosure, the power supply section 210 is an extension structure of the conductive plate 220 integrally formed by bending.

[0061] In this embodiment, the power supply unit 210 can be understood as a conductive structure that transmits radio frequency signals from a signal source to the conductive plate 220. The signal source can be located between the circuit board and the conductive plate 220 to generate or process radio frequency signals, and is coupled to the conductive plate 220 through the power supply unit 210 to excite antenna radiation.

[0062] The power supply section 210 can be formed by bending and extending the conductive plate 220, forming a continuous conductor with the conductive plate 220 without the need for additional connection processes. This integrated design, by directly bending a specific area of ​​the conductive plate 220 (i.e., the power supply area), achieves signal transmission while reducing the number of independent parts, lowering assembly costs, and improving structural reliability.

[0063] Of course, in other possible implementations, the power supply unit 210 can also be implemented by means of springs, soldered pins or other power supply connectors, as long as the electrical connection requirements for effectively transmitting the radio frequency signal from the signal source to the conductive plate 220 are met.

[0064] In exemplary embodiments of this disclosure, such as Figure 3 As shown, the conductive element 200 also includes a connecting portion 230. The conductive plate 220 also includes a third side 224 connected between the first side 221 and the second side 222. One end of the connecting portion 230 is connected to the third side 224, and the other end of the connecting portion 230 is connected to the metal back cover 100.

[0065] In this embodiment, the conductive element 200 includes a conductive plate 220 and a connecting portion 230. The conductive plate 220 is composed of a first side 221, a second side 222, and a third side 224 connecting the two. One end of the connecting portion 230 is connected to the third side 224 of the conductive plate 220, and the other end of the connecting portion 230 is connected to the metal back cover 100. Thus, the metal back cover 100, the connecting portion 230, and the conductive plate 220 can be used to form a resonant cavity 300.

[0066] The resonant cavity 300 has a first radiation opening 310 and a second radiation opening 320. A first side 221 of the conductive plate 220 is located on the side of the first radiation opening 310, which corresponds to the first side region 110 of the metal back cover 100; a second side 222 is located on the side of the second radiation opening 320, which corresponds to the second side region 120. When the power supply unit 210 inputs a radio frequency signal to the conductive plate 220, electromagnetic resonance is excited within the resonant cavity 300, making the first gap 410 between the first side region 110 and the screen 400 and the second gap 420 between the second side region 120 and the screen 400 effective radiation channels, achieving dual-gap coordinated radiation.

[0067] The connecting portion 230 is a component of the conductive element 200, serving as a mechanical connection and electrical conduction bridge between the conductive plate 220 and the metal back cover 100. One end of the connecting portion 230 is connected to the third side 224 of the conductive plate 220, and the other end is connected to the metal back cover 100. Thus, the metal back cover 100, the connecting portion 230, and the conductive plate 220 together enclose a resonant cavity 300 with two radiating openings. These two radiating openings correspond to the first side region 110 and the second side region 120 of the metal back cover 100, respectively. The first side region 110 forms a first gap 410 with the screen 400, and the second side region 120 forms a second gap 420 with the screen 400, allowing radiation to pass through the first gap 410 and the second gap 420.

[0068] In this embodiment of the disclosure, the third side 224 is used to connect the first side 221 and the second side 222 of the conductive plate 220. For example... Figure 3 As shown, the third side 224 can adopt an L-shaped structure design. This design facilitates the implementation of the manufacturing process, reduces manufacturing complexity, and facilitates cooperation with the connecting part 230 to jointly construct a stable resonant cavity 300.

[0069] The electronic device of this disclosure forms a resonant cavity 300 with two radiation openings by being enclosed by a metal back shell 200, a connecting part 230 and a conductive plate 220. This expands the antenna radiation space, improves the antenna radiation efficiency, and helps to improve the communication quality of the device.

[0070] In an exemplary embodiment of this disclosure, the connecting portion 230 is an extension structure of the conductive plate 220 integrally formed by bending.

[0071] The connecting portion 230 can be formed by bending and extending the third side 224 region of the conductive plate 220, forming a continuous conductive structure with the conductive plate 220 as a whole, without the need for additional welding or mechanical connection processes. Since the connecting portion 230 and the conductive plate 220 are integrally formed, a more complete and continuous conductive path can be achieved, thereby improving the overall electromagnetic enclosure performance of the resonant cavity, helping to reduce electromagnetic energy leakage on the non-radiating opening side, improving the directivity of electromagnetic wave output on the radiating opening side, and thus optimizing the antenna radiation performance.

[0072] Of course, in other possible implementations, the connecting part 230 can also be implemented by an independent metal connector, conductive spring, riveting structure or other suitable conductive connector, as long as the requirements for good electrical conduction and mechanical fixation between the connecting part 230 and the conductive plate 220 are met.

[0073] exist Figure 3 In the structural diagram of the conductive component shown, the first side 221 and the second side 222 of the conductive plate 220 are L-shaped, and the third side 224 is L-shaped. In other possible embodiments, the first side 221 and the second side 222 of the conductive plate 220 can adopt other shapes different from L-shape. Similarly, the third side 224 can also be adjusted according to design requirements.

[0074] Figure 4 The structure of the conductive element shown in an exemplary embodiment of this disclosure Figure 2 .like Figure 4 As shown, the first side 221 and the second side 222 of the conductive plate 220 can be configured as curves. The feed section 210 is disposed in the intersection region of the first side 221 and the second side 222, specifically at either the first end of the first side 221 or the first end of the second side 222. The first length between the feed section 210 and the second end of the first side 221, and the second length between the feed section 210 and the second end of the second side 222 in the intersection region, are both 1 / 4λ, causing the conductive plate 220 to excite a λ / 4 standing wave resonant mode at both radiating edges.

[0075] Figure 5 The structure of the conductive element shown in an exemplary embodiment of this disclosure Figure 3 .like Figure 5 As shown, the third side 224 of the conductive plate 220 can be composed of multiple broken lines to connect the first side 221 and the second side 222.

[0076] In the electronic device of this disclosure embodiment, the first side 221, the second side 222, or the third side 224 of the conductive plate 220 can be designed as a straight line, an L-shape, a curve, or a multi-segment broken line, etc., according to actual needs, so as to make better use of the internal space of the electronic device.

[0077] In an exemplary embodiment of this disclosure, the electronic device further includes a guide connected between the connection portion 230 and the metal rear housing 100.

[0078] The conductive connector 230 and the metal back cover 100 are used to achieve electrical connection and signal conduction between them. Through the provision of the conductive connector, the conductive element 200 can be effectively grounded to the metal back cover 100 via the connector 230 and the conductive connector.

[0079] For example, the conductive component can be made of a material with good conductivity and a certain degree of elasticity, such as conductive cotton. One end of the conductive component is in contact with the metal back cover 100, and the other end is in contact with the connection portion 230 of the conductive component 200. This ensures that a stable electrical path is formed between the connection portion 230 and the metal back cover 100, guaranteeing the electromagnetic shielding effect of the resonant cavity 300 and the stability of the antenna radiation performance. Secondly, the conductive cotton has a certain degree of elasticity, which can act as a buffer during assembly. The conductive cotton also has a certain degree of environmental sealing and dustproof capability, which helps to improve the communication quality and operational reliability of electronic equipment.

[0080] In the electronic device of this disclosure, the conductive component ensures a stable and reliable electrical connection between the connection part 230 and the metal back cover 100, improves the electromagnetic shielding performance of the resonant cavity and the antenna radiation stability, and at the same time, the conductive component realizes effective grounding of the conductive component and the metal back cover, ensuring the integrity of the radio frequency signal circuit and enhancing the stability of antenna operation and communication efficiency.

[0081] Figure 6 This is a schematic diagram illustrating the antenna current simulation of an electronic device according to an exemplary embodiment of this disclosure. Figure 6 As shown, the first side 221 and the second side 222 of the conductive plate 220 have an L-shaped structure, located on the first radiating opening 310 and the second radiating opening 320, respectively. From Figure 6 It can be seen that the current exhibits a clear concentration phenomenon on the first side 221 and the second side 222, and the conductive plate 220 excites the λ / 4 standing wave resonant mode on the first side 221 and the second side 222.

[0082] Figure 7 This is a diagram showing the antenna performance of an electronic device in related technologies. In these technologies, the cavity antenna of the electronic device is a resonant cavity with an opening on one side, and its radiation mode is the λ / 2 mode. To ensure that the cavity antenna resonates within the required operating frequency band, the cavity antenna size is designed to be approximately λ / 2 × λ / 4. Figure 7 The diagram shows the radiation efficiency and overall system efficiency of an electronic device antenna in the 2.2 GHz to 3 GHz frequency range. At approximately 2.45 GHz, both curves reach their optimal values ​​of -4.7 dB and -4.74 dB, respectively, indicating that the antenna's radiation and overall efficiency are highest at this point.

[0083] Figure 8 This is an exemplary embodiment of the present disclosure illustrating the antenna performance of an electronic device. In this embodiment, the conductive component 200 of the electronic device and the metal back cover 100 enclose a resonant cavity 300. The resonant cavity 300 includes a first radiation opening 310 and a second radiation opening 320, and works in cooperation through the two radiation openings, adopting a dual-opening λ / 4×λ / 4 resonant cavity structure. Figure 8 The radiation efficiency and overall system efficiency of the electronic device antenna in the 2.2 GHz to 3 GHz frequency range are shown in the embodiments of this disclosure. Figure 8 As can be seen, the radiation efficiency remains relatively stable across the entire frequency band, close to -4dB, demonstrating excellent radiation performance; the total system efficiency reaches a peak of -3.04dB at 2.44GHz, and then gradually decreases with increasing frequency, but still remains at a relatively high level.

[0084] In comparison, the electronic device antennas in related technologies employ a resonant cavity design with one side opening, achieving an optimal overall system efficiency of approximately -4.74 dB. Furthermore, to resonate within the required operating frequency band, the cavity antenna size is designed to be approximately λ / 2 × λ / 4. In contrast, this embodiment utilizes a resonant cavity 300 formed by a conductive plate 220 and a metal back shell 100, featuring a first radiating opening 310 and a second radiating opening 320. This dual-opening λ / 4 × λ / 4 resonant cavity structure achieves a more compact design, reducing antenna size while significantly improving performance. Specifically, within the same frequency band, the peak overall system efficiency of the electronic device antenna in this embodiment reaches -3.04 dB, an improvement of over 1.7 dB compared to traditional designs. This demonstrates that the electronic device antenna in this embodiment can more effectively convert input power into radiated signals, reducing energy loss while simultaneously optimizing size.

[0085] The electronic device of this disclosure has a resonant cavity 300 formed by the metal back shell 100 and the conductive component 200 having two radiating openings facing different side regions, which expands the antenna radiation space and improves the antenna radiation efficiency. Furthermore, the dual radiating opening structure allows the resonant cavity to reduce its size while supporting the antenna operating frequency band, realizing the miniaturization design of the cavity antenna. This meets the needs of electronic devices for antenna miniaturization and high performance under the trend of high integration and thinness, and is suitable for electronic devices such as mobile phones and tablets.

[0086] It should be noted that the electronic device in this embodiment can be a foldable electronic device or a flat-screen electronic device (non-foldable electronic device). In practical applications, the position of the conductive components can be flexibly adjusted according to factors such as the specific shape, size, internal structure, and antenna performance requirements of the electronic device, and this embodiment does not limit this.

[0087] Figure 9 This is a block diagram illustrating an electronic device according to an exemplary embodiment of the present disclosure. (Refer to...) Figure 9 The electronic device 900 may also include one or more of the following components: a processing component 902, a memory 904, a power supply component 906, a multimedia component 908, an audio component 910, an input / output (I / O) interface 912, a sensor component 914, and a communication component 916.

[0088] Processing component 902 typically controls the overall operation of electronic device 900, such as operations associated with display, telephone calls, data communication, camera operation, and recording operations. Processing component 902 may include one or more processors 920 to execute instructions to perform all or part of the steps of the methods described above. Furthermore, processing component 902 may include one or more modules to facilitate interaction between processing component 902 and other components. For example, processing component 902 may include a multimedia module to facilitate interaction between multimedia component 908 and processing component 902.

[0089] Memory 904 is configured to store various types of data to support the operation of device 900. Examples of this data include instructions for any application or method operating on electronic device 900, contact data, phonebook data, messages, pictures, videos, etc. Memory 904 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk.

[0090] Power supply component 906 provides power to various components of electronic device 900. Power supply component 906 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to electronic device 900.

[0091] Multimedia component 908 includes a screen that provides an output interface between the electronic device 900 and the user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touchscreen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensors may sense not only the boundaries of the touch or swipe action but also the duration and pressure associated with the touch or swipe operation. In some embodiments, multimedia component 908 includes a front-facing camera and / or a rear-facing camera. When the device 900 is in an operating mode, such as a shooting mode or a video mode, the front-facing camera and / or the rear-facing camera may receive external multimedia data. Each front-facing camera and rear-facing camera may be a fixed optical lens system or have focal length and optical zoom capabilities.

[0092] Audio component 910 is configured to output and / or input audio signals. For example, audio component 910 includes a microphone (MIC) configured to receive external audio signals when electronic device 900 is in an operating mode, such as call mode, recording mode, and voice recognition mode. The received audio signals may be further stored in memory 904 or transmitted via communication component 916. In some embodiments, audio component 910 also includes a speaker for outputting audio signals.

[0093] I / O interface 912 provides an interface between processing component 902 and peripheral interface modules, such as keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to, home buttons, volume buttons, power buttons, and lock buttons.

[0094] Sensor assembly 914 includes one or more sensors for providing state assessments of various aspects of electronic device 900. For example, sensor assembly 914 can detect the on / off state of device 900, the relative positioning of components such as the display and keypad of electronic device 900, changes in position of electronic device 900 or a component of electronic device 900, the presence or absence of user contact with electronic device 900, orientation or acceleration / deceleration of electronic device 900, and temperature changes of electronic device 900. Sensor assembly 914 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. Sensor assembly 914 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, sensor assembly 914 may also include an accelerometer, gyroscope, magnetometer, pressure sensor, or temperature sensor.

[0095] Communication component 916 is configured to facilitate wired or wireless communication between electronic device 900 and other devices. Electronic device 900 can access wireless networks based on communication standards, such as WiFi, 3G, 4G, 5G, other communication standards, or combinations thereof. In some embodiments of this disclosure, communication component 916 receives broadcast signals or broadcast-related information from an external broadcast management system via a broadcast channel. In some embodiments of this disclosure, communication component 916 further includes a near-field communication (NFC) module to facilitate short-range communication. For example, the NFC module may be implemented based on radio frequency identification (RFID) technology, Infrared Data Association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

[0096] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the appended claims.

[0097] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. An electronic device, comprising: The electronic device includes: A metal rear shell, the metal rear shell including a first side region and a second side region disposed adjacent to each other; A conductive component, which together with the metal rear shell forms a resonant cavity, the resonant cavity including a first radiation opening and a second radiation opening, the radiation direction of the first radiation opening facing the first side region, and the radiation direction of the second radiation opening facing the second side region. The conductive element includes a power supply section for powering the conductive element to generate electromagnetic resonance within the resonant cavity, thereby forming a cavity antenna.

2. The electronic device of claim 1, wherein, The conductive component also includes a conductive plate; The conductive plate includes a first side where the first radiating opening is located and a second side where the second radiating opening is located, with the first end of the first side connected to the first end of the second side; The power supply unit is located at the first end of the first side, or the power supply unit is located at the first end of the second side.

3. The electronic device of claim 2, wherein, The first length between the feed section and the second end of the first side ranges from 1 / 4λ to 1 / 2λ, where λ is the wavelength corresponding to the operating frequency band of the cavity antenna.

4. The electronic device of claim 2 or 3, wherein, The second length between the feed section and the second end of the second side ranges from 1 / 4λ to 1 / 2λ, where λ is the wavelength corresponding to the operating frequency band of the cavity antenna.

5. The electronic device of claim 2, wherein, The power supply section is an extension structure integrally formed by bending the conductive plate.

6. The electronic device of claim 2, wherein, The conductive component further includes a connecting portion, and the conductive plate further includes a third side connected between the first side and the second side; One end of the connecting part is connected to the third side, and the other end of the connecting part is connected to the metal rear shell.

7. The electronic device of claim 6, wherein, The connecting part is an extension structure integrally formed by bending the conductive plate.

8. The electronic device of claim 6 or 7, wherein, The electronic device also includes a conductive component; The guide is connected between the connecting part and the metal rear shell.

9. The electronic device of claim 2, wherein, The conductive plate is made of a metallic material with electrical conductivity.

10. The electronic device of claim 1, wherein, The electronic device further includes a screen, which is mounted on the metal rear housing, and the conductive element is located between the screen and the metal rear housing; The screen forms a first gap with the first side region, and the screen forms a second gap with the second side region. The cavity antenna radiates electromagnetic radiation based on the first gap and the second gap.

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