Antenna device and electronic device

Abstract

The application discloses an antenna device and an electronic device, and belongs to the technical field of electronic devices. The electronic device comprises a shell and a mainboard arranged in the shell. The shell comprises a top side and a bottom side opposite to the top side. The antenna device comprises a radiator arranged at the edge of the shell and located between the top side and the bottom side, and the radiator has a gap between two ends thereof; a first feeding part arranged on the mainboard, the distance between the first feeding part and the top side is smaller than the distance between the first feeding part and the bottom side, and the first feeding part is connected to the radiator; and a resonance assembly arranged on the shell, a first end of the resonance assembly is connected to the mainboard, and a second end of the resonance assembly extends towards the bottom side. In the direction from the top side to the bottom side, the first feeding part is located between the gap and the top side, and the first end of the resonance assembly is located between the gap and the bottom side. The resonance assembly is used for coupling resonance of the mainboard to generate a resonance current towards the bottom side under excitation of the resonance assembly.

Description

Technical Field

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

[0002] Antennas in electronic devices are typically arranged with metal sides. During antenna operation, such as... Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, with the antenna feed section located at the top of the electronic device, a traveling wave current (such as...) is generated on the metal side of the antenna, flowing downwards towards the electronic device. Figure 2 As indicated by the middle arrow, the antenna's main radiation pattern will radiate in the direction of phase lag, which is towards the bottom of the electronic device. This results in a smaller proportion of radiation above the electronic device, affecting the antenna's reception performance. In other words, for the electronic device as a whole, the proportion of radiation on one side of the electronic device is smaller than the proportion of radiation on the other side.

[0003] In related technologies, the problem of low radiation concentration at the top of the electronic device can be addressed by moving the antenna's position downwards. However, when a user holds the electronic device, they may obstruct the antenna, reducing its signal reception efficiency. Alternatively, a resonant device can be placed below the existing antenna to suppress downward-facing traveling currents. However, this resonant device occupies space within the electronic device, affecting the placement of other components and thus impacting its performance.

[0004] Therefore, how to increase the radiation ratio of the antenna on the side of the electronic device with a smaller radiation ratio without changing the existing antenna layout has become an urgent technical problem to be solved. Summary of the Invention

[0005] This application aims to provide an antenna device and electronic device that can solve the problem in the related art of how to increase the radiation ratio of the side with a smaller radiation ratio in an electronic device without changing the existing antenna layout.

[0006] In a first aspect, embodiments of this application provide an antenna device for an electronic device. The electronic device includes a housing and a motherboard disposed within the housing. The housing includes a top side and a bottom side opposite to the top side. The antenna device includes:

[0007] The radiator is located at the edge of the shell and between the top and bottom sides, with a gap between its two ends;

[0008] The first power supply unit is disposed on the motherboard. The distance between the first power supply unit and the top side is smaller than the distance between the first power supply unit and the bottom side. The first power supply unit is connected to the radiator.

[0009] A resonant component is disposed in the housing. The first end of the resonant component is connected to the motherboard, and the second end of the resonant component extends toward the bottom side.

[0010] In this configuration, along the direction from the top side to the bottom side, the first power supply section is located between the gap and the top side, and the first end of the resonant component is located between the gap and the bottom side. When the electronic device is in operation, the resonant component is used to couple the resonance of the motherboard to generate a resonant current towards the bottom side.

[0011] Secondly, embodiments of this application provide an electronic device, including a housing; a motherboard disposed within the housing; and an antenna device as described in the first aspect.

[0012] The antenna device of this application embodiment includes a resonant component. During operation of the electronic device, the resonant component generates a resonant current towards the bottom of the device's casing under the excitation of the resonance generated by the motherboard. This resonant current effectively suppresses the traveling wave current generated in the radiator and directed towards the bottom of the casing, thereby significantly increasing the radiation ratio of the antenna device on the top of the casing and improving its reception performance. Furthermore, the resonant component utilizes the existing motherboard and casing of the electronic device, eliminating the need for a separate resonant source. This reduces the space occupied by the device and does not affect the arrangement of other components. Therefore, it achieves an increase in the radiation ratio of the antenna device on the top of the casing without altering the existing antenna layout of the electronic device.

[0013] 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

[0014] 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:

[0015] Figure 1 A schematic diagram of the structure of an electronic device in the related technology is shown;

[0016] Figure 2 It shows Figure 1 Distribution diagram of traveling wave current during the operation of electronic equipment;

[0017] Figure 3 It shows Figure 1 A graph showing the scattering parameters of an antenna device during the operation of an electronic device.

[0018] Figure 4 It shows Figure 1 Antenna efficiency curve of antenna device during the operation of electronic equipment;

[0019] Figure 5 It shows Figure 1 A schematic diagram illustrating the radiation ratio of antenna devices during the operation of electronic equipment;

[0020] Figure 6 One of the structural schematic diagrams of the antenna device according to an embodiment of this application is shown;

[0021] Figure 7 A second schematic diagram of the antenna device according to an embodiment of this application is shown;

[0022] Figure 8 The third schematic diagram of the antenna device according to an embodiment of this application is shown;

[0023] Figure 9 It shows Figure 8 Distribution diagram of traveling wave current during the operation of the antenna device;

[0024] Figure 10 It shows Figure 8 A graph showing the scattering parameters of the antenna device during its operation.

[0025] Figure 11 It shows Figure 8 Antenna efficiency curve of the antenna device during operation;

[0026] Figure 12 It shows Figure 8 A schematic diagram showing the radiation ratio of the antenna device during operation.

[0027] Figure 13 The fourth schematic diagram of the antenna device according to an embodiment of this application is shown;

[0028] Figure 14 It shows Figure 13 Distribution diagram of traveling wave current during the operation of the antenna device;

[0029] Figure 15 It shows Figure 13 A graph showing the scattering parameters of the antenna device during its operation.

[0030] Figure 16 It shows Figure 13 Antenna efficiency curve of the antenna device during operation;

[0031] Figure 17 It shows Figure 13A schematic diagram showing the radiation ratio of the antenna device during operation.

[0032] Figure 18 The fifth schematic diagram of the antenna device according to an embodiment of this application is shown;

[0033] Figure 19 A schematic diagram of the structure of an electronic device according to an embodiment of this application is shown.

[0034] Figure label:

[0035] 100 Antenna device, 102 Radiator, 104 First feed section, 106 Resonant assembly, 108 Slit, 110 Connector, 112 Coupling assembly, 114 First conductive plate, 116 Second conductive plate, 118 Metal spring, 120 Second feed section, 122 Third feed section, 200 Electronic device, 202 Housing, 204 Main board, 206 Frame, 208 Cover, 210 Circuit board, 212 Bracket. Detailed Implementation

[0036] 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.

[0037] 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, "a plurality of" means two or more.

[0038] 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.

[0039] The following is combined with Figures 6 to 19 This application describes an antenna device and an electronic device according to embodiments thereof.

[0040] In some embodiments of this application, an antenna device is provided. Figure 6One of the structural schematic diagrams of the antenna device according to an embodiment of this application is shown, such as... Figure 6 As shown, the antenna device 100 is used in an electronic device 200. The electronic device 200 includes a housing 202 and a main board 204 disposed in the housing 202. The housing 202 includes a top side and a bottom side opposite to the top side. The antenna device 100 includes: a radiator 102 disposed around the edge of the housing 202 and located between the top side and the bottom side, with a gap 108 between the two ends of the radiator 102, the gap 108 being located between the top and bottom sides; and a first feed section 104 disposed on the main board 204, the distance between the first feed section 104 and the top side being less than the distance between the first feed section 104 and the bottom side. The power supply 104 is connected to the radiator 102; the resonant assembly 106 is disposed in the housing 202, the first end of the resonant assembly 106 is connected to the motherboard 204, and the second end of the resonant assembly 106 extends toward the bottom side; wherein, along the direction from the top side to the bottom side, the first power supply 104 is located between the gap 108 and the top side, and the first end of the resonant assembly 106 is located between the gap 108 and the bottom side. When the electronic device 200 is in operation, the resonant assembly 106 is used to couple the resonance of the motherboard 204, that is, the resonant assembly 106 can generate a resonant current toward the bottom side under the excitation of the resonance generated by the motherboard 204.

[0041] In this embodiment, the antenna device 100 can be used in an electronic device 200. The electronic device 200 includes a housing 202 and a motherboard 204 disposed within the housing 202. The housing 202 includes a top side and a bottom side opposite to the top side. It should be noted that the top side of the housing 202 can be the upper part of the electronic device 200, and conversely, the bottom side of the housing 202 is the lower part of the electronic device 200. That is, when a user holds the electronic device 200, the top side is the side facing upwards, and the bottom side is the side facing downwards.

[0042] Furthermore, the antenna device 100 includes a radiator 102, which is disposed at the edge of the housing 202 of the electronic device 200, and located between the top and bottom sides; that is, the radiator 102 can be located at the side edge of the electronic device 200. Signal reception and transmission can be achieved through the radiator 102. Specifically, a slit 108 is provided between the two ends of the radiator 102, meaning there is a certain distance between the two ends of the radiator 102. Thus, during operation, the electronic device 200 can receive and transmit signals through the two ends of the radiator 102. The slit 108 is located between the top and bottom sides of the housing 202; that is, relative to the top and bottom of the electronic device 200, the slit 108 can be located on one side of the electronic device 200.

[0043] Furthermore, the antenna device 100 also includes a first feed section 104, which is disposed on the main board 204 of the electronic device 200. The first feed section 104 is also connected to the radiator 102, meaning that the radiator 102 is connected to the feed source of the main board 204 via the first feed section 104, thereby enabling the radiator 102 to transmit signals. Simultaneously, the distance between the first feed section 104 and the top side is less than the distance between the first feed section 104 and the bottom side; that is, the first feed section 104 is located near the top side of the electronic device 200, i.e., in the upper half of the electronic device 200.

[0044] Furthermore, the antenna device 100 also includes a resonant component 106, which is disposed within the housing 202. A first end of the resonant component 106 is connected to the motherboard 204, and a second end of the resonant component 106 extends towards the bottom of the housing 202. During operation of the electronic device 200, the resonant component 106 can couple the resonance of the motherboard 204, thereby generating a resonant current in the resonant component 106. This resonant current flows from the first end of the resonant component 106 to the second end of the resonant component 106; that is, the resonant current generated by the resonant component 106 moves towards the bottom of the electronic device 200.

[0045] Understandably, during the operation of the electronic device 200, the first feed unit 104 is positioned near the top of the electronic device 200. When the radiator 102 receives and transmits signals, a traveling wave current is generated in the direction towards the bottom of the housing 202, causing the main radiation direction of the radiator 102 to face the bottom of the housing 202. At this time, by setting the resonant component 106, a resonant current towards the bottom of the electronic device 200 can be generated during the operation of the electronic device 200. Furthermore, the resonant component 106 is positioned between the gap 108 and the bottom, that is, near the bottom of the housing 202, so that the resonant current generated by the resonant component 106 can suppress the traveling wave current generated in the radiator 102, thereby causing the traveling wave current generated in the radiator 102 to move towards the top of the housing 202. This can effectively increase the radiation ratio of the antenna device 100 on the top of the housing 202 and improve the receiving effect of the antenna device 100. In addition, it should be noted that the frequency of the resonant current generated in the resonant component 106 can be greater than or equal to the frequency of the signal generated by the radiator 102, thereby improving the suppression effect of the resonant current on the traveling wave current, and thus effectively increasing the radiation ratio of the antenna device 100 on the top side of the housing 202.

[0046] Furthermore, one end of the resonant component 106 is connected to the motherboard 204 of the electronic device 200, and the resonant component 106 is disposed on the housing 202 of the electronic device 200. That is, the resonant component 106 can utilize the resonance generated by the motherboard 204 of the electronic device 200 during operation, i.e., the resonance generated by coupling the motherboard 204, to generate a resonant current, thereby increasing the radiation ratio of the antenna device 100 on the top side of the housing 202. In other words, the resonant component 106 utilizes the existing structural components of the electronic device 200, eliminating the need for a separate resonant source, thus reducing the space occupied by the electronic device 200 and not affecting the arrangement of other components within the electronic device 200. This allows for an increase in the radiation ratio of the antenna device 100 on the top side of the housing 202 without altering the existing antenna layout of the electronic device 200.

[0047] The antenna device 100 of this application embodiment includes a resonant component 106. During operation of the electronic device 200, the resonant component 106 couples with the resonance of the motherboard 204 of the electronic device 200. Specifically, under the excitation of the resonance generated by the motherboard 204, a resonant current is generated on the resonant component 106, pointing towards the bottom side of the housing 202 of the electronic device 200. This resonant current suppresses the traveling wave current generated in the radiator 102 pointing towards the bottom side of the housing 202, thereby effectively increasing the radiation ratio of the antenna device 100 on the top side of the housing 202 and improving the receiving effect of the antenna device 100. Simultaneously, the resonant component 106 utilizes the existing motherboard 204 and housing 202 of the electronic device 200, eliminating the need for a separate resonant source, thus reducing the space occupied by the electronic device 200 and not affecting the arrangement of other components within the electronic device 200. Therefore, it is possible to increase the radiation ratio of the antenna device 100 on the top side of the housing 202 without changing the existing antenna layout of the electronic device 200.

[0048] Furthermore, it should be noted that in related technologies, in order to improve other performance aspects of the antenna device 100, namely, performance other than increasing the radiation ratio of the antenna device 100 on the top side of the housing 202, some electronic devices 200 are equipped with parasitic devices. During the operation of the electronic device 200, these parasitic devices can generate parasitic currents towards the top side of the housing 202. However, since the parasitic current is directed towards the top side of the housing 202, it does not suppress the traveling wave current in the radiator 102 directed towards the bottom side of the housing 202, and therefore cannot improve the radiation ratio of the antenna device 100 on the top side of the housing 202. In contrast, the resonant current generated by the resonant component 106 in this application is directed towards the bottom side of the housing 202, thus suppressing the traveling wave current generated in the radiator 102 directed towards the bottom side of the housing 202, thereby increasing the radiation ratio of the antenna device 100 on the top side of the housing 202.

[0049] Specifically, the antenna device 100 can be a WIFI (Wireless Fidelity) antenna device.

[0050] In some embodiments of this application, Figure 7 A second schematic diagram of the antenna device according to an embodiment of this application is shown, as follows: Figure 7 As shown, the resonant component 106 includes: a connector 110 disposed on the motherboard 204; and a coupling component 112, one end of which is connected to the connector 110, and the other end of which is disposed on the housing 202 and extends toward the bottom side; wherein, when the electronic device 200 is in operation, the coupling component 112 is used to couple the resonance generated by the motherboard 204 to generate a resonant current toward the bottom side.

[0051] In this embodiment, the resonant component 106 includes a connector 110, which can be disposed on the motherboard 204 of the electronic device 200, thereby enabling the transmission of the resonance generated by the motherboard 204 during the operation of the electronic device 200.

[0052] Furthermore, the resonant component 106 also includes a coupling component 112, wherein one end of the coupling component 112 is connected to the connector 110, and the other end of the coupling component 112 is disposed in the housing 202, and the other end of the coupling component 112 extends toward the bottom side of the housing 202. It should be noted that the housing 202 may include a frame and a back cover, and the coupling component 112 may be disposed on the frame or on the back cover.

[0053] By setting the coupling component 112, during the operation of the electronic device 200, the resonance generated by the motherboard 204 can be coupled to the second end of the coupling component 112 through the coupling connection between the first end and the second end of the coupling component 112. That is, under the excitation of the resonance generated by the motherboard 204, a resonant current is generated in the coupling component 112. Furthermore, the second end of the coupling component 112 extends towards the bottom side of the housing 202, thereby generating a resonant current towards the bottom side of the housing 202 at the second end of the coupling component 112. This resonant current suppresses the traveling wave current generated in the radiator 102 towards the second end of the housing 202, thereby increasing the radiation ratio of the antenna device 100 on the top side of the housing 202 and improving the receiving effect of the antenna device 100.

[0054] In some embodiments of this application, Figure 8 The third schematic diagram of the antenna device according to an embodiment of this application is shown. Figure 8 As shown, the coupling assembly 112 includes: a first conductive plate 114 connected to the connector 110; and a second conductive plate 116 disposed in the housing 202 and coupled to the first conductive plate 114, with the second conductive plate 116 extending toward the bottom side.

[0055] In this embodiment, the coupling component 112 includes a first conductive plate 114 and a second conductive plate 116, and the first conductive plate 114 and the second conductive plate 116 are coupled together. The first conductive plate can generate a resonant current under the excitation of resonance generated by the motherboard 204, and then, through the coupling connection of the first conductive plate 114 and the second conductive plate 116, the resonant current can be coupled to the second conductive plate 116.

[0056] Furthermore, the second conductive plate 116 extends toward the bottom side of the housing 202, thereby enabling the generation of a resonant current flowing toward the bottom side of the housing 202 on the second conductive plate 116. This, in turn, suppresses the traveling wave current generated in the radiator 102 toward the bottom side of the housing 202, increasing the radiation ratio of the antenna device 100 on the top side of the housing 202.

[0057] In addition, the housing 202 may include a frame and a back cover. The second conductive plate 116 is disposed on the back cover of the housing 202, so that the second conductive plate 116 only occupies a small space inside the housing 202 and does not affect the arrangement of other devices in the electronic device 200. Thus, the radiation ratio of the antenna device 100 on the top side of the housing 202 can be increased without changing the existing antenna layout of the electronic device 200.

[0058] It should be noted that the length of the second conductive plate 116 along the direction from the top to the bottom is set according to the frequency of the electromagnetic wave emitted by the radiator 102, so that the frequency of the resonant current generated by the second conductive plate 116 is greater than or equal to the frequency of the electromagnetic wave emitted by the radiator 102.

[0059] Specifically, the length of the second conductive plate 116 along the direction from the top side to the bottom side of the housing 202 can be set according to the frequency of the electromagnetic waves emitted by the radiator 102. This ensures that the resonant current generated on the second conductive plate 116 towards the bottom side of the housing 202 can effectively suppress the traveling wave current in the radiator 102 towards the bottom side of the housing 202.

[0060] Specifically, by setting the length of the second conductive plate 116, during the operation of the electronic device 200, the frequency of the resonant current generated in the second conductive plate 116 is greater than or equal to the frequency of the electromagnetic wave generated by the radiator 102. This ensures that the resonant current generated by the second conductive plate 116 toward the bottom side of the housing 202 can effectively suppress the traveling wave current in the radiator 102 toward the bottom side of the housing 202, thereby increasing the radiation ratio of the antenna device 100 on the top side of the housing 202.

[0061] Specifically, taking WIFI 2.4G as an example, by setting the length of the second conductive plate 116 so that the frequency of the harmonic current generated in the second conductive plate 116 reaches the frequency of the electromagnetic wave generated by WIFI 2.4G, or is slightly higher than the frequency of the electromagnetic wave generated by WIFI 2.4G, the traveling wave current in the radiator 102 toward the bottom side of the housing 202 can be suppressed.

[0062] In some embodiments of this application, the area of ​​the overlapping portion of the first conductive plate 114 and the second conductive plate 116 is larger than the first area along a direction perpendicular to the top side to the bottom side.

[0063] In this embodiment, the area of ​​the overlapping portion of the first conductive plate 114 and the second conductive plate 116 can be set to ensure the resonance amount generated by the motherboard 204 of the electronic device 200 that the second conductive plate 116 can couple to, thereby ensuring the magnitude of the resonant current generated by the second conductive plate 116, so as to ensure that the resonant current generated on the second conductive plate 116 towards the bottom side of the housing 202 can effectively suppress the traveling wave current in the radiator 102 towards the bottom side of the housing 202.

[0064] Specifically, along a direction perpendicular to the top to the bottom, the area of ​​the overlapping portion of the first conductive plate 114 and the second conductive plate 116 is larger than the first area. This first area can be specifically set according to the frequency of the electromagnetic waves emitted by the electronic device 200 and the antenna device 100.

[0065] For example, for WIFI 2.4G, the size of the first conductive plate 114 can be set to 2mm × 2mm, and the entire area of ​​the first conductive plate 114 overlaps with the second conductive plate 116. In this case, the size of the second conductive plate 116 can be set to 2mm × 14mm, meaning the area of ​​the overlapping portion of the first conductive plate 114 and the second conductive plate 116, i.e., the first area, is 4mm². 2 Specifically, the first area can be set according to the frequency of the electromagnetic waves radiated by the antenna device. For example, the value of the first area can be in the range of 1 mm. 2 Up to 10mm 2 By setting the dimensions of the first conductive plate 114 and the second conductive plate 116, it is possible to ensure the resonance quantity coupled to the second conductive plate 116, and also to ensure that the frequency of the harmonic current generated on the second conductive plate 116 can reach the frequency of the electromagnetic waves generated by WIFI 2.4G, so as to suppress the traveling wave current in the radiator 102 toward the bottom side of the housing 202.

[0066] In some embodiments of this application, such as Figure 8 As shown, the connector 110 includes a metal spring 118, which is disposed on the motherboard 204, and the coupling component 112 is electrically connected to the metal spring 118.

[0067] In this embodiment of the application, the connector 110 can be a metal spring 118. By placing the metal spring 118 on the motherboard 204 and connecting the coupling component 112 to the metal spring 118, under the excitation of the resonance generated by the motherboard 204, a resonant current can be generated on the coupling component 112 to achieve coupling of the resonance generated by the motherboard 204.

[0068] Specifically, the metal spring 118 is disposed on the motherboard 204, the first conductive plate 114 of the coupling component 112 is connected to the metal spring 118, and the second conductive plate 116 of the coupling component 112 is disposed on the housing 202 of the electronic device 200, thereby realizing the coupling of the resonance generated by the motherboard 204 to the second conductive plate 116, so as to generate a resonant current on the second conductive plate 116.

[0069] By setting the connector 110 as a metal spring 118, the cost of the resonant assembly 106 can be effectively reduced, thereby effectively reducing the cost of the electronic device 200 while increasing the radiation ratio of the antenna device 100 on the top side of the housing 202.

[0070] For example, Figure 9 It shows Figure 8 Distribution diagram of traveling wave current during the operation of the antenna device; Figure 10It shows Figure 8 A graph showing the scattering parameters of the antenna device during its operation. Figure 11 It shows Figure 8 Antenna efficiency curve of the antenna device during operation; Figure 12 It shows Figure 8 A schematic diagram illustrating the radiation ratio of the antenna device during operation; for example... Figure 9 , Figure 10 , Figure 11 and Figure 12 As shown, with Figure 2 , Figure 3 , Figure 4 and Figure 5 A comparison reveals that, compared to electronic devices in related technologies, the traveling wave current (e.g., ...) in the radiator 102 of the antenna device 100 provided in this application embodiment... Figure 9 (As indicated by the middle arrow) is effectively suppressed, and most of the traveling wave current no longer flows towards the bottom side of the housing 202, thereby effectively improving the radiation ratio of the antenna device 100 in the top direction. Among these, in Figure 4 and Figure 11 In this context, rad.Efficiency represents the antenna's aperture radiation efficiency, System rad.Efficiency represents the system radiation efficiency, and SystemTot.Efficiency represents the overall system efficiency. Specifically, the radiation proportion of the antenna device 100 in the top-side direction increases from 27.12% to 48.41%, the efficiency of the antenna device 100 in the top-side direction increases from 14.55% to 29.51%, and the overall efficiency of the antenna device 100 increases from 53.65% to 60.97%. In other words, the antenna device 100 provided in this embodiment effectively improves the proportion and efficiency of the antenna device 100 in the top-side direction without changing the original arrangement of the antenna device 100 in the electronic device.

[0071] In some embodiments of this application, Figure 13 Fourthly, a structural schematic diagram of an antenna device according to an embodiment of this application is shown. Figure 13 As shown, the connector 110 includes a second power supply section 120, which is disposed on the motherboard 204 and connected to the coupling assembly 112.

[0072] In this embodiment, the connector 110 may also be configured as a second power supply part 120, which is connected to the coupling component 112.

[0073] By configuring the connector 110 as the second feed section 120, on the one hand, the resonance generated by the motherboard 204 can be transmitted through the second feed section 120, and the resonance generated by the motherboard 204 can be coupled through the coupling component 112 to generate a resonant current toward the bottom side of the housing 202, thereby increasing the radiation ratio of the antenna device 100 on the top side of the housing 202. On the other hand, the second feed section 120 is connected to the motherboard 204, so that the resonant component 106 can be connected to the feed source on the motherboard 204 through the second feed section 120, thereby enabling the resonant component 106 to radiate signals as a radiator, which can further improve the efficiency of the antenna device 100 in receiving and transmitting electromagnetic wave signals, that is, improve the overall receiving and transmitting efficiency of the antenna device 100.

[0074] For example, Figure 14 It shows Figure 13 Distribution diagram of traveling wave current during the operation of the antenna device; Figure 15 It shows Figure 13 A graph showing the scattering parameters of the antenna device during its operation. Figure 16 It shows Figure 13 Antenna efficiency curve of the antenna device during operation; Figure 17 It shows Figure 13 A schematic diagram illustrating the radiation ratio of the antenna device during operation; for example... Figure 14 , Figure 15 , Figure 16 and Figure 17 As shown, with Figure 2 , Figure 3 , Figure 4 and Figure 5 A comparison reveals that, compared to electronic devices in related technologies, the traveling wave current (e.g., ...) in the radiator 102 of the antenna device 100 provided in this application embodiment... Figure 14 (As indicated by the middle arrow) is effectively suppressed, and most of the traveling wave current no longer flows towards the bottom side of the housing 202, thereby effectively improving the radiation ratio of the antenna device 100 in the top direction. Among these, in Figure 4 and Figure 16In this context, rad.Efficiency represents the antenna's aperture radiation efficiency, System rad.Efficiency represents the system radiation efficiency, and SystemTot.Efficiency represents the overall system efficiency. Specifically, the radiation proportion of the antenna device 100 in the top-side direction increases from 27.12% to 50.77%, and the efficiency of the antenna device 100 in the top-side direction increases from 14.55% to 27.06%. In other words, the antenna device 100 provided in this embodiment effectively improves the proportion and efficiency of the antenna device 100 in the top-side direction without changing the original arrangement of the antenna device 100 in the electronic device.

[0075] In some embodiments of this application, Figure 18 Fifth of the schematic diagrams shows the structure of the antenna device according to an embodiment of this application. Figure 18 As shown, the electronic device 200 may further include a third feed section 122, which may be disposed between the first feed section 104 and the top side, and is connected to the radiator 102. By providing the third feed section 122, the performance of the antenna device 100 can be further improved.

[0076] This application also provides an electronic device 200. Figure 19 A structural block diagram of an electronic device 200 according to an embodiment of this application is shown, as follows: Figure 19 As shown, the electronic device 200 includes: a housing 202; a motherboard 204 disposed within the housing 202; and an antenna device 100 as described in any of the above embodiments.

[0077] The electronic device 200 proposed in this embodiment has the beneficial effects of any of the above embodiments because it has the antenna device 100 as described in any of the above embodiments, which will not be described in detail here.

[0078] In some embodiments of this application, such as Figure 19 As shown, the housing 202 includes: a frame 206; a cover 208, the edge of which is connected to the frame 206; wherein, the radiator 102 is disposed on the frame 206.

[0079] In this embodiment, the housing 202 may include a frame 206 and a cover 208, wherein the edge of the cover 208 is connected to the frame 206. A radiator 102 is disposed on the frame 206. By disposing the radiator 102 on the frame 206, the frame 206 of the housing 202 of the electronic device 200 can be utilized to ensure the radiation effect of the radiator 102.

[0080] Furthermore, the frame 206 of the housing 202 can be set as a metal frame 206, and the frame 206 of the housing 202 can be directly set as the radiator 102. Thus, the frame 206 of the housing 202 can be used to form the radiator 102. This improves the compactness of the electronic device 200 structure and is beneficial to the miniaturization design of the electronic device 200, based on realizing the signal receiving and transmitting functions of the radiator 102.

[0081] In some embodiments of this application, such as Figure 19 As shown, the second conductive plate 116 of the resonant component 106 is attached to the side of the cover 208 facing the inside of the housing 202.

[0082] In this embodiment, the second conductive plate 116 of the resonant component 106 can be directly attached to the side of the cover 208 facing the interior of the housing 202. This allows the second conductive plate 116 to occupy only a small space within the housing 202, without affecting the arrangement of other components in the electronic device 200. Consequently, it is possible to increase the radiation ratio of the antenna device 100 on the top side of the housing 202 without altering the existing antenna layout of the electronic device 200.

[0083] In some embodiments of this application, such as Figure 19 As shown, the motherboard 204 includes: a circuit board 210; a bracket 212 disposed on the circuit board 210, the bracket 212 being used to fix the components on the circuit board 210; wherein, the first conductive plate 114 of the resonant assembly 106 is attached to the bracket 212.

[0084] In this embodiment, the motherboard 204 of the electronic device 200 may include a circuit board 210 and a bracket 212. The bracket 212 is disposed on the circuit board 210, thereby fixing the components on the circuit board 210 to ensure the stability of the components on the circuit board 210. At the same time, the first conductive plate 114 of the resonant component 106 can be attached to the bracket 212, so the first conductive plate 114 can be directly fixed by the bracket 212 of the motherboard 204. Furthermore, since the first conductive plate 114 is attached to the bracket 212, the first conductive plate 114 only occupies a small space within the housing 202 and does not affect the arrangement of other components in the electronic device 200. This allows for an increase in the radiation ratio of the antenna device 100 on the top side of the housing 202 without changing the existing antenna layout of the electronic device 200.

[0085] 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.

[0086] 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 antenna device for an electronic device, characterized by The electronic device comprises a housing and a mainboard arranged in the housing, the housing comprises a top side and a bottom side opposite to the top side, the antenna device comprises: a radiator arranged at an edge of the housing and between the top side and the bottom side, the radiator has a gap between two ends thereof; a first feeding portion arranged on the mainboard, the distance between the first feeding portion and the top side is less than the distance between the first feeding portion and the bottom side, the first feeding portion is connected to the radiator; a resonance assembly arranged in the housing, a first end of the resonance assembly is connected to the mainboard, and a second end of the resonance assembly extends towards the bottom side; wherein, in the direction from the top side to the bottom side, the first feeding portion is located between the gap and the top side, and the first end of the resonance assembly is located between the gap and the bottom side, and in the case that the electronic device is running, the resonance assembly is used to couple the resonance of the mainboard to generate a resonance current towards the bottom side.

2. The antenna device of claim 1, wherein, The resonance assembly comprises: a connecting piece arranged on the mainboard; a coupling assembly, one end of the coupling assembly is connected to the connecting piece, and the other end of the coupling assembly is arranged in the housing and extends towards the bottom side; wherein, in the case that the electronic device is running, the coupling assembly is used to couple the resonance generated by the mainboard to generate the resonance current towards the bottom side.

3. The antenna device of claim 2, wherein, The coupling assembly comprises: a first conductive plate connected to the connecting piece; a second conductive plate arranged in the housing and coupled to the first conductive plate, the second conductive plate extends towards the bottom side.

4. The antenna device of claim 3, wherein In the direction perpendicular to the direction from the top side to the bottom side, the area of the overlapping part of the first conductive plate and the second conductive plate is greater than the first area.

5. The antenna device of claim 2, wherein, The connecting piece comprises: a metal spring arranged on the mainboard, and the coupling assembly is electrically connected to the metal spring.

6. The antenna device of claim 2, wherein, The connecting piece comprises: a second feeding portion arranged on the mainboard, and the second feeding portion is connected to the coupling assembly.

7. An electronic device, comprising: It comprises: a housing; a mainboard arranged in the housing; an antenna device according to any one of claims 1 to 6.

8. The electronic device of claim 7, wherein, The housing comprises: a frame; a cover, an edge of the cover is connected to the frame; wherein, the radiator is arranged in the frame.

9. The electronic device of claim 8, wherein, The second conductive plate of the resonance assembly is attached to one side of the cover towards the inside of the housing.

10. The electronic device of claim 7, wherein, The mainboard comprises: a circuit board; a support arranged on the circuit board, the support is used to fix components on the circuit board; wherein, the first conductive plate of the resonance assembly is attached to the support.

Images