Antenna device and electronic device

Abstract

The application provides an antenna device and an electronic device. The antenna device comprises a conductive part, an antenna radiator and a feed source. The conductive part is electrically connected with a ground system and realizes grounding. A gap is arranged between the antenna radiator and the conductive part. The antenna radiator can be electromagnetically coupled with the conductive part through the gap. The antenna radiator comprises a feed point and a grounding point. The grounding point is electrically connected with the ground system and realizes grounding. The feed source is electrically connected with the feed point. The excitation current provided by the feed source can excite the antenna device to support wireless signals in a first frequency range. Based on this, the antenna device, the antenna radiator and the conductive part can be electromagnetically coupled to support wireless signals together. The antenna device can not only expand the coverage area of the wireless signals, but also realize miniaturized design.

Description

Technical Field

[0001] This application relates to the field of communication technology, and in particular to an antenna device and electronic device. Background Technology

[0002] With the development of communication technology, electronic devices such as smartphones are able to perform more and more functions, and their communication modes are becoming more diversified. Understandably, each communication mode of an electronic device requires a corresponding antenna to support it.

[0003] However, with the development of communication technology, electronic devices are becoming smaller and thinner, and the internal space of electronic devices is also getting smaller. Therefore, how to set up the antenna has become an urgent problem to be solved. Summary of the Invention

[0004] This application provides an antenna device and an electronic device, the antenna device being capable of miniaturization.

[0005] In a first aspect, this application provides an antenna device, comprising:

[0006] The antenna radiator includes a first end, a second end, and a feed point and a grounding point disposed between the first end and the second end. The grounding point is electrically connected to the ground system and is grounded.

[0007] A conductive element has a gap between it and the antenna radiator, allowing the conductive element to electromagnetically couple with the antenna radiator through the gap. The conductive element is also electrically connected to the ground system for grounding.

[0008] A feed source, electrically connected to the feed point, is used to provide an excitation current, which is used to excite the antenna device to support wireless signals within a first frequency band.

[0009] Secondly, this application provides an electronic device including the antenna device described above.

[0010] Thirdly, this application provides an electronic device, comprising:

[0011] A circuit board, wherein a ground system is provided on the circuit board;

[0012] A conductive element is disposed on the circuit board, and the conductive element is electrically connected to the ground system to achieve grounding;

[0013] The bracket is stacked and spaced apart from the circuit board.

[0014] An antenna radiator is disposed on the bracket and has a gap between it and the conductive component. The antenna radiator can be electromagnetically coupled to the conductive component. The antenna radiator includes a first end and a second end, as well as a feed point and a grounding point disposed between the first end and the second end. The grounding point is electrically connected to a grounding plane and achieves grounding.

[0015] The feed source is electrically connected to the feed point and provides excitation current.

[0016] The antenna device and electronic device of this application include an antenna radiator and a conductive component that are spaced apart and have a gap. When the excitation current provided by the feed source flows on the antenna radiator, the excitation current can be electromagnetically coupled to the conductive component through the gap. The conductive component can be electromagnetically coupled to the antenna radiator, and the excitation current can excite the antenna device to support wireless signals within a first frequency band. Based on this, the electromagnetic coupling of the antenna radiator and the conductive component in this application jointly supports wireless signals, which can both expand the coverage area of ​​wireless signals and enable the miniaturization of the antenna device.

[0017] Furthermore, when the antenna device can support wireless signals in the 5.15GHz-7.15GHz frequency band, the antenna device can have a bandwidth of 2G, and the antenna device has a relatively wide bandwidth. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of a first structure of the antenna device provided in an embodiment of this application.

[0020] Figure 2 for Figure 1 The diagram shows the first type of current distribution for the antenna device.

[0021] Figure 3 This is a schematic diagram of a second structure of the antenna device provided in an embodiment of this application.

[0022] Figure 4 for Figure 3 The diagram shows the first type of current distribution for the antenna device.

[0023] Figure 5 This is a schematic diagram of a third structure of the antenna device provided in the embodiments of this application.

[0024] Figure 6 for Figure 5The diagram shows a current distribution of the antenna device.

[0025] Figure 7 This is a schematic diagram of a fourth structure of the antenna device provided in the embodiments of this application.

[0026] Figure 8 for Figure 7 The diagram shows the first type of current distribution for the antenna device.

[0027] Figure 9 for Figure 7 The diagram shows a second type of current distribution for the antenna device.

[0028] Figure 10 for Figure 7 The diagram shows the third type of current distribution for the antenna device.

[0029] Figure 11 for Figure 1 The diagram shows a second type of current distribution for the antenna device.

[0030] Figure 12 This is a schematic diagram of the S-parameter curve of an antenna device provided in an embodiment of this application.

[0031] Figure 13 This is a schematic diagram of an antenna efficiency curve for an antenna device provided in an embodiment of this application.

[0032] Figure 14 This is a fifth structural schematic diagram of the antenna device provided in the embodiments of this application.

[0033] Figure 15 This is a sixth structural schematic diagram of the antenna device provided in the embodiments of this application.

[0034] Figure 16 This is a schematic diagram of a first structure of an electronic device provided in an embodiment of this application.

[0035] Figure 17 This is a schematic diagram of a second structure of an electronic device provided in an embodiment of this application.

[0036] Figure 18 This is a schematic diagram of a third structure of an electronic device provided in an embodiment of this application. Detailed Implementation

[0037] The following will refer to the appendices in the embodiments of this application. Figure 1 To be continued Figure 18The technical solutions in the embodiments of this application are clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the protection scope of this application.

[0038] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0039] This application provides an antenna device 100 and an electronic device 10. The antenna device 100 can realize wireless communication functions. For example, the antenna device 100 can support Wireless Fidelity (Wi-Fi) signals, Global Positioning System (GPS) signals, 3rd Generation (3G), 4th Generation (4G), 5th Generation (5G), Near Field Communication (NFC) signals, Bluetooth (BT) signals, Ultra Wideband (UWB) signals, etc.

[0040] Please refer to Figure 1 , Figure 1 This is a schematic diagram of a first structure of the antenna device 100 provided in an embodiment of this application. The antenna device 100 may include at least an antenna radiator 110, a conductive element 120, and a feed source 130.

[0041] The antenna radiator 110 includes a first end 111 and a second end 112, which can be the two ends of the antenna radiator 110. The antenna radiator 110 may also include a feed point 113 and a ground point 114, which can be located between the first end 111 and the second end 112. The feed point 113 can be directly or indirectly electrically connected to the feed source 130 to feed the antenna radiator 110, and the ground point 114 can be directly or indirectly electrically connected to the ground system 140 to ground. It is understood that the ground system 140 can be a device or area with zero potential. The conductive element 120 can be spaced apart from the antenna radiator 110, for example, but not limited to, the two can be stacked; there is no physical contact between the conductive element 120 and the antenna radiator 110, and a gap 170 can exist between the conductive element 120 and the antenna radiator 110, through which the conductive element 120 can achieve electromagnetic coupling with the antenna radiator 110. (It should be noted that the accompanying drawings of this embodiment are only schematic illustrations of the antenna device 100 of this embodiment.) Figure 1 The 170mm center gap may not be the actual size. Figure 1 (The illustration in the diagram should not be construed as limiting the gap 170 in the embodiments of this application). The conductive element 120 can be directly or indirectly electrically connected to the ground system 140 and grounded. The excitation current provided by the feed source can excite the antenna device to support wireless signals within a first frequency band. It is understood that the first frequency band can be, but is not limited to, the 5.15GHz-7.15GHz band.

[0042] In this embodiment of the antenna device 100, the conductive element 120 is spaced apart from the antenna radiator 110 and provided with a gap 170. Excitation current can be electromagnetically coupled to the conductive element 120 through the gap 170. The conductive element 120 can be electromagnetically coupled to the antenna radiator 110, and the excitation current can excite the antenna device 100 to support wireless signals within a first frequency band. Based on this, the electromagnetic coupling of the antenna radiator 110 and the conductive element 120 in this application jointly supports wireless signals, which can both expand the coverage area of ​​the wireless signal and enable a miniaturized design of the antenna device 100. Furthermore, when the excitation current excites the antenna device 100 to support wireless signals within the 5.15GHz-7.15GHz frequency band, the antenna device 100 in this embodiment can have a bandwidth of 2GHz, indicating a relatively wide bandwidth.

[0043] Among them, combined Figure 1 Please refer to Figure 2 , Figure 2 for Figure 1The diagram shows a first current distribution of the antenna device 100. The feed 130 can provide a first excitation current I1, which can be fed into the antenna radiator 110 through the feed point 113 and flow on the antenna radiator 110; the first excitation current I1 can also flow through the grounding point 114 via the ground system 140 and flow on the ground system 140; the first excitation current I1 can also flow through the ground system 140 to the conductor 120 and flow on the conductor 120; the first excitation current I1 can also be electromagnetically coupled to the antenna radiator 110 through the gap 170 between the conductor 120 and the antenna radiator 110; thus, the first excitation current I1 can flow through the antenna radiator 110, the ground system 140, and the conductor 120, and be electromagnetically coupled to the antenna radiator 110 through the gap 170 to form a loop current path. The first excitation current I1 can excite the antenna radiator 110, the ground system 140, and the conductor 120 to work together in a first resonant mode to support the transmission of wireless signals within a first frequency band.

[0044] It is understood that the flow of the first excitation current I1 in the circular current path can refer to the flow of most of the first excitation current I1. During the actual operation of the antenna device 100, most of the first excitation current I1 can flow along the circular current path, enabling the antenna device 100 to operate in the first resonant mode. A small portion of the first excitation current I1 may flow in other directions. In this embodiment, the flow direction of this small portion of the first excitation current I1 can be ignored, and the flow direction of most of the first excitation current I1 is mainly considered. It should be noted that the descriptions of the second excitation current I2, the third excitation current I3, the fourth excitation current I4, etc., in subsequent embodiments of this application can all refer to the description of the first excitation current I1. That is, the subsequent descriptions of the above excitation currents can all refer to the flow direction of this majority of the excitation current.

[0045] It is understood that the antenna radiator 110 can be a conductive structure capable of supporting wireless signal transmission under the excitation signal. The antenna radiator 110 can be, but is not limited to, made of metal, conductive silver paste, or similar materials. The conductive element 120 can be a conductive structure capable of electromagnetic coupling under the excitation signal; the conductive element 120 can be, but is not limited to, a metal laminate, a metal screw, a metal spring, or similar structures. The conductive element 120 can be disposed near the antenna radiator 110 to facilitate electromagnetic coupling between the conductive element 120 and the antenna radiator 110.

[0046] In this embodiment of the antenna device 100, the antenna radiator 110 and the conductive element 120 are spaced apart and provided with a gap 170. When the first excitation current I1 provided by the feed source 130 flows on the antenna radiator 110, the first excitation current I1 can flow through the antenna radiator 110, the ground system 140, and the conductive element 120, and be electromagnetically coupled to the antenna radiator 110 through the gap 170 to form a loop current path. The first excitation current I1 in the loop current path can excite the antenna radiator 110, the ground system 140, and the conductive element 120 to form a loop antenna and work together in the first resonant mode. Based on this, this embodiment of the application utilizes the ground system 140, the conductive element 120, and the gap 170 to form a loop antenna with the antenna radiator 110. On the one hand, the loop antenna has higher antenna efficiency; on the other hand, the ground system 140, the conductive element 120, and the gap 170 can extend the electrical length of the antenna radiator 110, allowing the antenna radiator 110 to have a shorter physical length, and the antenna device 100 can achieve a miniaturized design. Furthermore, in this embodiment, there is a certain height difference between the conductive element 120 and the antenna radiator 110, and the antenna radiator 110 can have a certain clearance area. Compared with the antenna formed on the circuit board, the antenna device 100 in this embodiment can have higher antenna efficiency.

[0047] In this embodiment, the feed point 113 of the antenna radiator 110 can be located near the midpoint of the antenna radiator 110. The feed point 113 and the ground point 114 can be located in the middle region of the antenna radiator 110 and away from the two end regions of the antenna radiator 110.

[0048] When the feed 130 feeds an excitation current into the antenna radiator 110, the antenna radiator 110 can form a "T"-shaped antenna. The excitation current is larger in the middle region and smaller at the ends of the antenna radiator 110. When the feed 130 feeds in the first excitation current I1, and the first excitation current I1 flows on the ground system 140, the current density and current intensity of the first excitation current I1 are greater in the region of the ground system 140 electrically connected to the grounding point 114 and in the projection region of the feed 130 onto the ground system 140. The first excitation current I1 flows more easily in these regions.

[0049] Please refer to this again. Figure 1 and Figure 2The feed point 113 of the antenna radiator 110 can be located between the ground point 114 and the first terminal 111. The ground point 114 can be located between the feed point 113 and the second terminal 112. The first terminal 111, feed point 113, ground point 114, and second terminal 112 can be arranged sequentially. The first excitation current I1 can mainly flow between the second terminal 112 and the ground point 114 of the antenna radiator 110. The first excitation current I1 can also mainly flow between the ground point 114 and the electrical connection point between the conductive element 120 and the ground system 140.

[0050] A first grounding terminal 141 may be provided on the ground system 140. The first grounding terminal 141 can be directly or indirectly electrically connected to the conductive element 120 to ground the conductive element 120. A second grounding terminal 142 may also be provided on the ground system 140. The second grounding terminal 142 can be directly or indirectly electrically connected to the grounding point 114 of the antenna radiator 110 to ground the antenna radiator 110. A first path S1 can be formed between the first grounding terminal 141 and the second grounding terminal 142.

[0051] When the distance between the projection of the conductive element 120 on the antenna radiator 110 (or antenna support 700) and the ground point 114 is less than the distance between the projection and the feed point 113, the conductive element 120 is positioned closer to the ground point 114. At this time, the first excitation current I1 can flow along the first path S1 on the ground system 140. The first excitation current I1 can flow through the antenna radiator 110 (i.e., the second conductor segment 102 described below) between the second end 112 and the ground point 114, the first path S1, and the conductive element 120, and be electromagnetically coupled to the antenna radiator 110 through the gap 170 to form a loop current path.

[0052] In the antenna device 100 of this application embodiment, the conductive element 120 is disposed close to the grounding point 114. The ring current path mainly flows through the first path S1 on the ground system 140. The current density and intensity of the first excitation current I1 on the first path S1 are much greater than the current density and intensity of the first excitation current I1 in other areas of the ground system 140. Therefore, the first excitation current I1 flowing through the first path S1 to the conductive element 120 is more easily electromagnetically coupled to the antenna radiator 110 to form a ring current path.

[0053] In this regard, please combine Figure 1 , Figure 2 Please refer to Figure 3 and Figure 4 , Figure 3 This is a schematic diagram of a second structure of the antenna device 100 provided in an embodiment of this application. Figure 4 for Figure 3The diagram shows a current distribution of the antenna device 100. The first excitation current I1 can flow primarily between the first end 111 of the antenna radiator 110 and the feed point 113. The first excitation current I1 can also flow primarily between the projection of the feed 130 onto the ground plane and the electrical connection point of the conductive element on the ground system 140.

[0054] A projection area 143 may be provided on the ground system 140. The projection of the feed 130 on the ground system 140 may be the projection area 143. A second path S2 may be formed between the ground system 140 and the first grounding terminal 141 and the projection area 143.

[0055] When the distance between the projection of the conductive element 120 on the antenna radiator 110 (or the support 700 described below) and the feed point 113 is less than the distance between the projection and the ground point 114, the conductive element 120 is positioned closer to the feed point 113. At this time, the first excitation current I1 can flow along the second path S2 on the ground system 140. The first excitation current I1 can flow through the antenna radiator 110 (i.e., the first conductor segment 101 described below) between the first end 111 and the feed point 113, the second path S2, and the conductive element 120, and is electromagnetically coupled to the antenna radiator 110 through the gap 170 to form a loop current path.

[0056] In the antenna device 100 of this application embodiment, the conductive element 120 is disposed near the feed terminal 113. The loop current path flows through the second path S2 on the ground system 140. The current density and intensity of the first excitation current I1 on the second path S2 are much greater than the current density and intensity of the first excitation current I1 in other areas of the ground system 140. Therefore, the first excitation current I1 flowing through the second path S2 to the conductive element 120 is more easily electromagnetically coupled to the antenna radiator 110 to form a loop current path.

[0057] It should be noted that the first excitation current I1 flowing along the annular current path can mean that most of the first excitation current I1 flows along the annular current path, or that the first excitation current I1 mainly flows along the annular current path. In actual debugging, the first excitation current I1 may have other flow patterns. In the description of the above embodiment, other flow paths formed by a small portion of the first excitation current I1 can be ignored.

[0058] It should be noted that, in this embodiment of the application, the grounding point 114 of the antenna radiator 110 and the ground system 140 can be physically electrically connected through, but not limited to, grounding springs, grounding screws, grounding branches, etc. The conductive element 120 and the ground system 140 can also be physically electrically connected through, but not limited to, grounding springs, grounding screws, grounding branches, etc. These grounding springs, grounding screws, and grounding branches can form part of a loop current path.

[0059] Please refer to this again. Figures 1 to 4 At least a portion of the conductive element 120 may be positioned relative to the first end 111 or the second end 112 of the antenna radiator 110.

[0060] At least a portion of the conductive element 120 may project onto the antenna radiator 110 (or onto the support 700 as described below) the first end 111 or the second end 112 of the antenna radiator 110, allowing at least a portion of the conductive element 120 to be positioned corresponding to either the first end 111 or the second end 112. When at least a portion of the conductive element 120 is positioned relative to either the first end 111 or the second end 112, the electric field strength at the first end 111 and the second end 112 is greater, which facilitates the electromagnetic coupling of the first excitation current I1 from the conductive element 120 through the gap 170 to either the first end 111 or the second end 112 of the antenna radiator 110.

[0061] It is understood that the volume of the conductive element 120 can be smaller than the volume of the antenna radiator 110. For example, the projection of all the conductive elements 120 onto the antenna radiator 110 can be positioned relative to its first end 111 or second end 112, but not relative to other areas of the antenna radiator 110. Thus, the conductive elements 120 are less likely to form a shielding layer on other areas of the antenna radiator 110, and the conductive elements 120 will not affect the performance of other areas of the antenna radiator 110.

[0062] In the antenna device 100 of this application embodiment, the conductive element 120 is disposed relative to the first end 111 or the second end 112 of the antenna radiator 110. The first excitation current I1 is more easily electromagnetically coupled from the conductive element 120 to the antenna radiator 110 to form a loop current path, and the radiation performance of the first resonance formed by the antenna device 100 is better.

[0063] Please refer to the following: Figure 5 , Figure 5 This is a schematic diagram of a third structure of the antenna device 100 provided in an embodiment of this application. The antenna radiator 110 can also support the transmission of other wireless signals under the action of other excitation currents provided by the feed source 130.

[0064] When the feed point 113 of the antenna radiator 110 is located between the ground point 114 and the first end 111, and the ground point 114 is located between the feed point 113 and the second end 112, and the first end 111, feed point 113, ground point 114, and second end 112 of the antenna radiator 110 are arranged sequentially, a first conductor segment 101 can be formed between the feed point 113 and the first end 111, and a second conductor segment 102 can be formed between the ground point 114 and the second end 112. The excitation current provided by the feed source can flow in opposite directions on the first conductor segment 101 and the second conductor segment 102, and excite the first conductor segment 101 and the second conductor segment 102 to work together in a resonant mode to support the transmission of wireless signals within the first frequency band.

[0065] For example, please refer to Figure 5 Please refer to Figure 6 , Figure 6 for Figure 5 The diagram illustrates a current distribution of the antenna device 100. When the length of the first conductor segment 101 between the feed point 113 and the first end 111 is equal to the length of the second conductor segment 102 between the ground point 114 and the second end 112, the excitation current provided by the feed source 130, such as the second excitation current I2, can flow in opposite directions on the first conductor segment 101 and the second conductor segment 102, with the current density on the first conductor segment 101 equal to the current density on the second conductor segment 102. For example, the second excitation current I2 on the first conductor segment 101 can flow from the feed point 113 towards the first end 111, and the second excitation current I2 on the second conductor segment 102 can flow from the ground point 114 towards the second end 112, with opposite directions and the same density. The second excitation current I2 can excite the first conductor segment 101 and the second conductor segment 102 to work together in a second resonant mode. It is understood that the second resonant mode can support wireless signals within a first frequency band.

[0066] It is understandable that the second resonant mode may differ from the first resonant mode. For example, the resonant frequency of the second resonant mode may differ from the resonant frequency of the first resonant mode, and the two resonate at different frequency points. For example, the resonant frequency of the first resonant mode may be greater than the resonant frequency of the second resonant mode; the resonant frequency of the first resonant mode may be 5.9 GHz, and the resonant frequency of the second resonant mode may be 5.08 GHz.

[0067] It is understood that the frequency bands of the wireless signals supported by the second resonant mode and the first resonant mode can be within the same frequency band range, for example, but not limited to, both can be within the 5.15GHz-7.15GHz frequency band range. Both the first resonant mode and the second resonant mode can support the transmission of Wi-Fi 7 signals, and the antenna device 100 can have a wide bandwidth. Of course, the frequency bands of the wireless signals supported by the first resonant mode and the second resonant mode may not be within the same frequency band range. For example, but not limited to, the first resonant mode can support the transmission of 5G Wi-Fi signals, and the second resonant mode can support the transmission of 2.4G Wi-Fi signals. It should be noted that the first resonant mode and the second resonant mode in this application embodiment can also support the transmission of other wireless signals, and the frequency bands of the wireless signals supported by them are not limited to the examples above. This application embodiment does not limit them in this regard.

[0068] It is understood that the second excitation current I2 can cause the first conductor segment 101 and the second conductor segment 102 to operate together in the second resonant mode in a quarter-wavelength mode. The first conductor segment 101 formed by the feed point 113 and the first end 111 can form a monopole antenna, and the second conductor segment 102 formed by the ground point 114 and the second end 112 can form another monopole antenna. The antenna radiator 110 can form two monopole antennas. Of course, the second excitation current I2 can also cause the first conductor segment 101 to support the second resonance in other modes, such as, but not limited to, a three-quarter mode, and the second conductor segment 102 to support the second resonance in other modes, such as, but not limited to, a three-quarter mode. Alternatively, the second excitation current I2 can also cause the first conductor segment 101 and the second conductor segment 102 to support the second resonant mode in other modes. The specific formation method of the second resonance is not limited in the embodiments of this application.

[0069] It is understood that the distance between the power supply point 113 and the grounding point 114 can be small, so that the first conductor segment 101 and the second conductor segment 102 can have a relatively long length. It is also understood that the length of the first conductor segment 101 between the power supply point 113 and the first end 111 can be equal to or different from the length of the second conductor segment 102 between the grounding point 114 and the second end 112, and the embodiments of this application do not limit this.

[0070] The antenna device 100 of this application embodiment allows the antenna radiator 110 to jointly support a second resonant mode via a first conductor segment 101 and a second conductor segment 102. The antenna radiator 110 can form two monopole antennas with different radiation directions. On one hand, this improves the spatial coverage of the wireless signal supported by the antenna radiator 110 and enhances the sensitivity of the antenna device 100. On the other hand, the joint support of the two conductor segments for wireless signal transmission improves antenna efficiency. Furthermore, the antenna radiator 110 can also operate in the first resonant mode in conjunction with the ground system 140 and the conductive element 120, enabling the antenna radiator 110 to operate in multiple resonant modes and possess multiple antenna operating modes, thus broadening the bandwidth of the antenna device 100. Simultaneously, when the lengths of the first conductor segment 101 and the second conductor segment 102 are equal, both segments can equally support wireless signal transmission, resulting in higher antenna efficiency for the antenna device 100.

[0071] Among them, combined Figure 5 and Figure 6 Please refer to Figure 7 , Figure 7 This is a fourth structural schematic diagram of the antenna device 100 provided in an embodiment of this application. The length of the first conductor segment 101 formed by the feed point 113 and the first end 111 may be different from the length of the second conductor segment 102 formed by the ground point 114 and the second end 112. For example, the length of the first conductor segment 101 may be less than the length of the second conductor segment 102; as another example, such as Figure 7 As shown, the length of the first conductor segment 101 can be greater than the length of the second conductor segment 102.

[0072] The excitation current provided by the feed 130 flows in opposite directions on the first conductor segment 101 and the second conductor segment 102, and the current density distributed on the first conductor segment 101 is different from the current density distributed on the second conductor segment 102, so as to excite the first conductor segment 101 and the second conductor segment 102 to work together in a resonant mode to support the transmission of wireless signals in the first frequency band.

[0073] It is understandable that the current density of the excitation current distributed in the first conductor segment 101 can be greater than the current density distributed in the second conductor segment 102, so that the first conductor segment 101, as the main radiating segment, and the second conductor segment 102, as the auxiliary radiating segment, work together in a resonant mode. Similarly, the current density of the excitation current distributed in the second conductor segment 102 can be greater than the current density distributed in the first conductor segment 101, so that the second conductor segment 102, as the main radiating segment, and the first conductor segment 101, as the auxiliary radiating segment, work together in a resonant mode.

[0074] In the antenna device 100 of this application embodiment, the excitation current flows in opposite directions in the first conductor segment 101 and the second conductor segment 102, and the current density distributed in the second conductor segment 102 is different from the current density distributed in the first conductor segment 101, so as to excite the first conductor segment 101 and the second conductor segment 102 to work together in a resonant mode. On the one hand, the two conductor segments of the antenna radiator 110 have different radiation directions, which can improve the spatial coverage of the wireless signal supported by the antenna radiator 110 and improve the sensitivity of the antenna device 100; on the other hand, the two radiating segments jointly support the transmission of wireless signals, which can also improve the antenna efficiency.

[0075] In this regard, please combine Figure 7 Please refer to Figure 8 , Figure 8 for Figure 7 The diagram illustrates a first current distribution in the antenna device 100. The length of the first conductor segment 101 of the antenna radiator 110 can be greater than the length of the second conductor segment 102. An excitation current provided by the feed, such as a third excitation current I3, flows in opposite directions on the first conductor segment 101 and the second conductor segment 102, and the current density distributed on the first conductor segment 101 can be greater than the current density distributed on the second conductor segment 102, thereby exciting the first conductor segment 101 and the second conductor segment 102 to operate together in a third resonant mode. It is understood that this third resonant mode can support the transmission of wireless signals within a first frequency band.

[0076] It is understandable that the current intensity of the third excitation current I3 distributed in the first conductor segment 101 can be greater than the current intensity distributed in the second conductor segment 102. The mode of the third resonant mode can be a combination of the quarter-fundamental mode of the first conductor segment 101 between the first end 111 and the feed point 113 and the quarter-fundamental mode of the second conductor segment 102 between the second end 112 and the ground point 114, with the quarter-fundamental mode of the first conductor segment 101 as the main radiation mode and the quarter-fundamental mode of the second conductor segment 102 as the auxiliary radiation mode. The first conductor segment 101 can be the main radiation segment of the third resonant mode, and the second conductor segment 102 can be the auxiliary radiation segment of the third resonant mode. The antenna radiator 110 mainly supports the transmission of wireless signals through the first conductor segment 101.

[0077] In this regard, please combine Figure 7 Please refer to Figure 9 , Figure 9 for Figure 7The diagram illustrates a second current distribution in the antenna device 100. The length of the first conductor segment 101 of the antenna radiator 110 can be greater than the length of the second conductor segment 102. The excitation current provided by the feed, such as a fourth excitation current I4, flows in opposite directions on the first conductor segment 101 and the second conductor segment 102, and the current density distributed on the first conductor segment 101 can be less than the current density distributed on the second conductor segment 102, to excite the first conductor segment 101 and the second conductor segment 102 to operate together in a fourth resonant mode. It is understood that this fourth resonant mode can support the transmission of signals within a first frequency band.

[0078] It is understandable that the current intensity of the fourth excitation current I4 distributed in the second conductor segment 102 can be greater than the current intensity distributed in the first conductor segment 101. At this time, the mode of the fourth resonant mode can be a combination of the quarter-fundamental mode of the first conductor segment 101 between the first end 111 and the feed point 113 and the quarter-fundamental mode of the second conductor segment 102 between the second end 112 and the ground point 114. The quarter-fundamental mode of the second conductor segment 102 is the main radiation mode and the quarter-fundamental mode of the first conductor segment 101 is the auxiliary radiation mode. The second conductor segment 102 can be the main radiation segment of the fourth resonant mode, and the first conductor segment 101 can be the auxiliary radiation segment of the fourth resonant mode. The antenna radiator 110 mainly supports the transmission of wireless signals through the second conductor segment 102.

[0079] It is understandable that when the third excitation current I3 and the fourth excitation current I4 cause the first conductor segment 101 to work together in the third resonant mode and the second conductor segment 102 in the quarter-wavelength mode, respectively, the first conductor segment 101 formed between the grounding point 114 and the first end 111 can form a monopole antenna, the second conductor segment 102 formed between the feed point 113 and the second end 112 can form another monopole antenna, and the antenna radiator 110 can form two monopole antennas.

[0080] It should be noted that the third excitation current I3 and the fourth excitation current I4 can also cause the first conductor segment 101 to operate in other modes, such as, but not limited to, the three-quarters mode, and the second conductor segment 102 to operate in other modes, such as, but not limited to, the three-quarters mode, in the third resonant mode and the fourth resonant mode. The embodiments of this application do not limit the specific modes of the third and fourth resonant modes.

[0081] It is understandable that, depending on the different lengths of the first conductor segment 101 and the second conductor segment 102, the antenna radiator 110 can support, under the action of the excitation current, as follows: Figure 6 The second resonant mode shown; or, the antenna radiator 110 can support, under the action of the excitation current, the second resonant mode shown; or, the second resonant mode shown; the third resonant mode shown; the fourth resonant mode shown; the fifth resonant mode shown; the sixth resonant mode shown; the seventh resonant mode shown; the eighth resonant mode shown; the ninth ... eighth resonant mode Figure 8The third resonant mode shown, or the antenna radiator 110 can support, under the action of the excitation current, such as Figure 9 The fourth resonant mode is shown.

[0082] Understandable, Figure 6 , Figure 8 and Figure 9 The resonant frequencies of the second, third, and fourth resonant modes formed by the excitation current shown can be different, and these resonant frequencies can be related to the length of the main radiating segment of the resonant mode. For example, when the lengths of the first conductor segment 101 and the second conductor segment 102 are equal, both can be equal to half the length of the antenna radiator 110. Figure 6 The resonant frequency of the second resonant mode can be associated with the length of the first conductor segment 101 / second conductor segment 102 (half the length of the antenna radiator 110); when the length of the first conductor segment 101 is greater than the length of the second conductor segment 102, the length of the first conductor segment 101 is greater than half the length of the antenna radiator 110, and the length of the second conductor segment 102 is less than half the length of the antenna radiator 110, in this case, Figure 8 The resonant frequency of the third resonant mode shown is related to the length of the first conductor segment 101 (which is greater than half the length of the antenna radiator 110). Figure 9 The resonant frequency of the fourth resonant mode shown is related to the length of the second conductor segment 102 (which is less than half the length of the antenna radiator 110). Based on this, Figure 9 The resonant frequency of the fourth resonant mode shown can be greater than [a certain value]. Figure 6 The resonant frequency of the second resonant mode shown is... Figure 6 The resonant frequency of the second resonant mode shown can be greater than [a certain value]. Figure 8 The resonant frequency of the third resonant mode is shown.

[0083] It is understood that the resonant frequencies of the second, third, and fourth resonant modes can be adjusted by changing the lengths of the first and second conductor segments. For example, the closer the lengths of the first and second conductor segments are, the closer the resonant frequencies of the second, third, and fourth resonant modes are; conversely, the greater the distance between the lengths of the first and second conductor segments, the greater the frequency distance between the second, third, and fourth resonant modes in the spectrum. It should be noted that the frequencies of the second, third, and fourth resonant modes are related not only to the lengths of the two conductor segments but also to the electronic devices electrically connected to the two conductor segments. The relationship between the resonant frequencies and the conductor segment lengths is not unique, and this application does not impose specific limitations on this relationship.

[0084] The antenna device 100 of this application embodiment can tune the resonant frequency of different resonant modes by adjusting the lengths of the first conductor segment 101 and the second conductor segment 102. The antenna device 100 can flexibly design the lengths of the two conductor segments according to the frequency of the supported wireless signal, so that the antenna device 100 can more easily resonate to the required resonance.

[0085] It is understandable that when the length of the first conductor segment 101 is greater than the length of the second conductor segment 102, the excitation current provided by the feed source 130 can be a third excitation current I3 that can only excite the first conductor segment 101 and the second conductor segment 102 to operate in the third resonant mode; the excitation current provided by the feed source can also be a fourth excitation current I4 that can only excite the first conductor segment 101 and the second conductor segment 102 to operate in the fourth resonant mode; the excitation current provided by the feed source can also be an excitation current that can excite the first conductor segment 101 and the second conductor segment 102 to operate in both the third and fourth resonant modes, such as a fifth excitation current I5; for example, please refer to... Figure 7 Please refer to Figure 10 , Figure 10 for Figure 7 The diagram shows a third current distribution of the antenna device 100. When the length of the first conductor segment 101 is greater than the length of the second conductor segment 102, the antenna radiator 110 can operate simultaneously at the third and fourth resonances.

[0086] The feed 130 can provide an excitation current, such as a fifth excitation current I5, wherein a portion of the fifth excitation current I5 can flow on the antenna radiator 110 and in opposite directions on the first conductor segment 101 and the second conductor segment 102, and the current density of the portion of the fifth excitation current I5 distributed in the first conductor segment 101 is greater than the current density distributed in the second conductor segment 102, and the current intensity of the portion of the fifth excitation current I5 distributed in the first conductor segment 101 can be greater than the current intensity distributed in the second conductor segment 102, and the portion of the fifth excitation current I5 can excite the first... Conductor segment 101 and conductor segment 102 work together in a third resonant mode. The third resonant mode can be a combination of the quarter-fundamental mode of the first conductor segment 101 and the quarter-fundamental mode of the second conductor segment 102, with the quarter-fundamental mode of the first conductor segment 101 as the main mode and the quarter-fundamental mode of the second conductor segment 102 as the auxiliary mode. The first conductor segment 101 can be the main radiating segment of the third resonant mode and the second conductor segment 102 can be the auxiliary radiating segment of the third resonant mode. The antenna radiator 110 mainly supports the transmission of wireless signals with the first conductor segment 101.

[0087] Another portion of the fifth excitation current I5 can flow on the antenna radiator 110 and in opposite directions on the first conductor segment 101 and the second conductor segment 102. The current density of the other portion of the fifth excitation current I5 distributed in the first conductor segment 101 can be less than the current density distributed in the second conductor segment 102, and the current intensity of the other portion of the fifth excitation current I5 distributed in the first conductor segment 101 can be less than the current intensity distributed in the second conductor segment 102. This other portion of the fifth excitation current I5 can excite the first conductor segment 101 and the second conductor segment 102 to work together in the fourth resonant mode. At this time, the fourth resonant mode can be a combination of the quarter-fundamental mode of the second conductor segment 102 and the quarter-fundamental mode of the first conductor segment 101, with the quarter-fundamental mode of the second conductor segment 102 as the main mode and the quarter-fundamental mode of the first conductor segment 101 as the auxiliary mode. The second conductor segment 102 can be the main radiating segment of the fourth resonant mode, and the first conductor segment 101 can be the auxiliary radiating segment of the fourth resonant mode. The antenna radiator 110 mainly supports the transmission of wireless signals through the second conductor segment 102.

[0088] It should be noted that when the length of the first conductor segment 101 is different from the length of the second conductor segment 102, the excitation signal provided by the feed source 130 can operate in other resonant modes besides the third and fourth resonant modes. For example, when the first conductor segment 101 is shorter than the second conductor segment 102, the excitation current flows in opposite directions in the two conductor segments, and the current density distributed in the second conductor segment 102 is greater than the current density distributed in the first conductor segment 101. The excitation current can excite the first conductor segment 101 and the second conductor segment 102 to operate together in another resonant mode. As another example, when the first conductor segment 101 is longer than the second conductor segment 102, the excitation current flows in opposite directions in the two conductor segments, and the current density distributed in the first conductor segment 101 is greater than the current density distributed in the second conductor segment 102. The excitation current can excite the first conductor segment 101 and the second conductor segment 102 to operate together in yet another resonant mode. Furthermore, the excitation current can excite the antenna radiator 110 to operate in both of these resonant modes simultaneously. This application embodiment does not limit the specific resonant mode in which the antenna radiator 110 operates.

[0089] The antenna device 100 of this application embodiment can support multiple resonance modes by adjusting the lengths of the first conductor segment 101 and the second conductor segment 102, thereby further widening the bandwidth of the antenna device 100.

[0090] Furthermore, the antenna device 100 in this embodiment can also support other resonance modes. For example, please refer to... Figure 1 Please refer to Figure 11 , Figure 11 for Figure 1 The diagram shows a second current distribution of the antenna device 100.

[0091] The excitation current provided by the feed 130, such as the sixth excitation current I6, can flow along the direction from the first end 111 to the second end 112 on the antenna radiator 110. The sixth excitation current I6 can excite the entire antenna radiator 110 to operate in the fifth resonant mode. It is understood that the fifth resonant mode can support the transmission of wireless signals within the first frequency band.

[0092] It is understandable that, since the excitation current is an alternating current signal, its direction will change periodically over time. In this embodiment, the sixth excitation current I6 flows from the first end 111 to the second end 112. This can mean that the sixth excitation current I6 can flow from the first end 111 through the feed point 113 and the ground point 114 to the second end 112, or it can mean that the sixth excitation current I6 flows from the second end 112 through the ground point 113 and the feed point 114 to the first end 111. The sixth excitation current I6 can flow across the entire antenna radiator 110, and the sixth excitation current I6 can cause the antenna radiator 110 to operate in the fifth resonant mode in a dipole mode.

[0093] It should be noted that the first excitation current I1, the second excitation current I2, the third excitation current I3, the fourth excitation current I4, and the fifth excitation current I5 in the foregoing embodiments are also AC signals. Therefore, the flow direction of the first excitation current I1, the second excitation current I2, the third excitation current I3, the fourth excitation current I4, and the fifth excitation current I5 is not limited to the flow direction shown in the accompanying drawings of the embodiments of this application, and they can also flow in the opposite direction.

[0094] It is understood that when the antenna radiator 110 is operating in the fifth resonant mode, the length of the first conductor segment 101 between the feed point 113 and the first end 111 may be equal to or different from the length of the second conductor segment 102 between the ground point 114 and the second end 112. This application embodiment does not limit this.

[0095] Understandably, the fifth resonant mode can differ from the first, second, third, and fourth resonant modes. For example, the resonant frequency of the fifth resonant mode can be higher than that of the first, second, third, and fourth resonant modes. The resonant frequency of the fifth resonant mode can be 6.5 GHz, the resonant frequency of the first resonant mode can be 5.9 GHz, the resonant frequency of the second resonant mode can be 5.07 GHz, the resonant frequency of the third resonant mode can be 5 GHz, and the resonant frequency of the fourth resonant mode can be 6.04 GHz.

[0096] Understandably, the sixth excitation current I6 can cause the antenna radiator 110 to operate in the fifth resonant mode in a dipole mode. The resonant frequency of the fifth resonant mode can be related to the electrical length of the antenna radiator 110. For example, the electrical length of the antenna radiator 110 can be equal to half the wavelength of the resonant frequency of the fifth resonant mode. When the electrical length of the antenna radiator 110 is half the wavelength of the resonant frequency of the fifth resonant mode, the antenna radiator 110 can more easily operate in the aforementioned fifth resonant mode in a dipole mode. Understandably, in actual production, due to the influence of the matching circuit, filter circuit, and other circuit structures electrically connected to the antenna radiator 110, the physical length of the antenna radiator 110 often differs from its electrical length. The physical length of the antenna radiator 110 (the length between the first end 111 and the second end 112) can be less than or greater than the electrical length of the antenna radiator 110. However, for ease of debugging, the difference between the physical length of the antenna radiator 110 and half the wavelength of the resonant frequency of the third resonant mode can be set within a small preset range. By adjusting the reactance value of the matching circuit, filter circuit, and other circuit structures electrically connected to the antenna radiator 110, the electrical length of the antenna radiator 110 can be equal to half the wavelength of the resonant frequency of the fifth resonant mode.

[0097] Of course, the sixth excitation current I6 can also excite the antenna radiator 110 to operate in the fifth resonant mode in other modes, such as, but not limited to, a quarter-wavelength mode or a one-wavelength mode. This application embodiment does not limit the specific mode of the fifth resonant mode. Similarly, the electrical length of the antenna radiator 110 may not be equal to half the wavelength of the resonant frequency of the fifth resonant mode. This application embodiment also does not limit the specific electrical length of the antenna radiator 110.

[0098] Understandably, without conflict, the feed 130 can feed an excitation current into the antenna radiator 110 so that the antenna radiator 110 can operate in one or more (two or more) of the first resonant mode, second resonant mode, third resonant mode, fourth resonant mode, and fifth resonant mode.

[0099] It is understood that, without conflict, the frequency bands of the wireless signals supported by multiple resonance modes among the first, second, third, fourth, and fifth resonance modes can be within the same frequency band range, for example, but not limited to, simultaneously within the Wi-Fi 7 frequency band range; of course, the frequency bands of the wireless signals supported by the first, second, third, fourth, and fifth resonance modes can also be completely different from each other. This application does not specifically limit the frequency band range of multiple resonances in its embodiments.

[0100] For example, please refer to Figure 12 and Figure 13 As shown, Figure 12 This is a schematic diagram of the S-parameter curve of the antenna device 100 provided in the embodiments of this application. Figure 13 This is a schematic diagram of an antenna efficiency curve for an antenna device 100 provided in an embodiment of this application. Figure 12 Curve S1 is a schematic diagram of the return loss parameter (S11 parameter) curve of antenna device 100. Figure 13 Curves S2 and S3 represent the radiation efficiency curve and system efficiency curve of the antenna device 100, respectively. When the length of the first conductor segment 101 is equal to the length of the second conductor segment 102, the feed source 130 can feed an excitation signal to the antenna radiator 110. As shown in curve S1, the antenna device 100 can simultaneously operate in the first resonant mode, the second resonant mode, and the fifth resonant mode. Furthermore, these first, second, and fifth resonant modes can support wireless signals in the 5.15 GHz to 7.15 GHz frequency band (Wi-Fi 7 band). Under the action of the excitation current provided by the feed source 130, the antenna radiator 110 can support wireless signals in the 5.15 GHz to 7.15 GHz frequency band. Moreover, as shown in curves S2 and S3, within the Wi-Fi 7 band, the average efficiency of the antenna device 100 is -2 dB, indicating that the antenna device 100 has superior operating efficiency.

[0101] The antenna device 100 of this application embodiment can operate in the first resonant mode of a loop antenna, the second resonant mode of two monopole modes, or the fifth resonant mode of a dipole mode. On the one hand, the three resonant modes can widen the bandwidth of the antenna device 100, enabling it to support a wider frequency band of Wi-Fi 7. On the other hand, the three resonant modes of the antenna device 100 have different radiation modes, resulting in less interference between them and higher antenna efficiency.

[0102] Please refer to the following: Figure 14 , Figure 14 This is a fifth structural schematic diagram of the antenna device 100 provided in an embodiment of this application. The antenna device 100 in this embodiment may further include a matching circuit.

[0103] One end of the matching circuit, such as the first matching circuit 180, can be directly or indirectly connected to the grounding point 114, and the other end of the matching circuit, such as the first matching circuit 180, can be directly or indirectly connected to the ground system 140 to achieve grounding. The matching circuit, such as the first matching circuit 180, can perform impedance matching adjustment on the excitation current provided by the feed 130.

[0104] Understandably, the first matching circuit 180 can adjust the impedance of the excitation current provided by the feed source so that the antenna radiator 110, the ground system 140, and the conductor 120 can jointly support the aforementioned resonance. For example, the first matching circuit 180 can adjust the impedance of one or more (two or more) of the first excitation current I1, the second excitation current I2, the third excitation current I3, the fourth excitation current I4, the fifth excitation current I5, and the sixth excitation current I6 so that the antenna radiator 110 supports one or more (two or more) of the first resonance, the second resonance, the third resonance, the fourth resonance, and the fifth resonance.

[0105] Understandably, please refer to Figure 15 , Figure 15 This is a sixth structural schematic diagram of the antenna device 100 provided in an embodiment of this application. The antenna device 100 may also include a second matching circuit 190, which can be connected in series between the feed source 130 and the feed point 113. The second matching circuit 190 can perform impedance matching adjustment on the excitation current provided by the feed source 130. For example, the second matching circuit 190 can perform impedance matching adjustment on the first excitation current I1, the second excitation current I2, the third excitation current I3, the fourth excitation current I4, the fifth excitation current I5, and the sixth excitation current I6 provided by the feed source, so that the antenna radiator 110 operates in one or more of the first resonant mode, the second resonant mode, the third resonant mode, the fourth resonant mode, and the fifth resonant mode.

[0106] It is understood that the first matching circuit 180 and the second matching circuit 190 may include multiple branches so that different branches can match and adjust the impedance of the different resonances mentioned above.

[0107] It is understood that the first matching circuit 180 and the second matching circuit 190 may include one or more electronic devices such as capacitors, inductors, and switches connected in series or parallel. This application does not limit the specific structure of the first matching circuit 180 and the second matching circuit 190.

[0108] The antenna device 100 in this embodiment is equipped with a matching circuit, which makes it easier to tune and support multiple resonances. The matching circuit can reduce the difficulty of debugging the antenna device 100.

[0109] The antenna device 100 of the embodiments of this application has been briefly described above. It should be noted that the above-described embodiments can be arbitrarily combined without conflict, and the combined solutions are also within the protection scope of the embodiments of this application. Furthermore, the accompanying drawings of the embodiments of this application should not be construed as limiting the embodiments of this application. For example, Figures 5 to 15The conductive element 120 is not limited to being located near the ground terminal 114 of the antenna radiator 110 as shown in the accompanying drawings. This application embodiment does not limit this.

[0110] Based on the structure of the antenna device 100 described above, this application also provides an electronic device 10. The electronic device 10 can be a smartphone, tablet computer, or other similar device, as well as a gaming device, augmented reality (AR) device, automotive device, data storage device, audio playback device, video playback device, laptop computer, desktop computing device, etc. Please refer to... Figure 16 , Figure 16 This is a schematic diagram of a first structure of an electronic device 10 provided in an embodiment of this application. The electronic device 10 may include the antenna device 100 in any of the above embodiments.

[0111] Among them, such as Figure 16 As shown, the electronic device 10 may also include a display screen 200, a mid-frame 300, a circuit board 400, a battery 500, and a back cover 600.

[0112] The display screen 200 is disposed on the mid-frame 300 to support the display surface of the electronic device 10 for displaying information such as images and text. The display screen 200 may be a liquid crystal display (LCD) or an organic light-emitting diode (OLED) display screen.

[0113] The middle frame 300 can be a thin plate or sheet structure, or a hollow frame structure. The middle frame 300 provides support for the electronic devices or functional components in the electronic device 10, allowing them to be mounted together. For example, the middle frame 300 can have recesses, protrusions, through holes, or other structures to facilitate the mounting of the electronic devices or functional components of the electronic device 10. Understandably, the material of the middle frame 300 can include metal or plastic.

[0114] The circuit board 400 is mounted on the mid-frame 300 for fixation. The circuit board 400 may integrate a processor, and may also integrate one or more functional components such as a headphone jack, accelerometer, gyroscope, and motor. Simultaneously, the display screen 200 can be electrically connected to the circuit board 400 to control its display via the processor on the circuit board 400.

[0115] The battery 500 is mounted on the mid-frame 300 and sealed inside the electronic device 10 by the rear cover 600. The battery 500 is electrically connected to the circuit board 400 to power the electronic device 10. The circuit board 400 may contain a power management circuit. This power management circuit distributes the voltage provided by the battery 500 to the various electronic components within the electronic device 10.

[0116] The back cover 600 can be connected to the middle frame 300. For example, the back cover 600 can be attached to the middle frame 300 using an adhesive such as double-sided tape to achieve the connection with the middle frame 300. The back cover 600, together with the middle frame 300 and the display screen 200, seals the electronic devices and functional components of the electronic device 10 inside the electronic device 10, providing support and protection for the electronic devices and functional components of the electronic device 10.

[0117] Please refer to the following: Figure 17 and Figure 18 , Figure 17 This is a schematic diagram of a second structure of the electronic device provided in an embodiment of this application. Figure 18 This is a third structural schematic diagram of the electronic device provided in the embodiments of this application. The circuit board 400 can support and house the conductive element 120 of the antenna device 100. The conductive element 120 can be disposed on the circuit board 400 and can be directly or indirectly connected to the circuit board 400 to achieve a detachable or fixed connection between the conductive element 120 and the circuit board 400. A ground system 140 can be provided on the circuit board 400, and the conductive element 120 can be electrically connected to the ground system 140 to achieve grounding.

[0118] like Figure 17 and Figure 18 As shown, the antenna device 100 in this embodiment may further include a support 700. The support 700 may be spaced apart from the circuit board 400, and an antenna radiator 110 may be disposed on the support 700. The antenna radiator 110 may be supported on the support 700.

[0119] It is understood that the bracket 700 can be stacked with the circuit board 400, and the bracket 700 can be set on one side of the circuit board 400. The two can have a certain height difference. Thus, the antenna radiator 110 set on the bracket 700 can have a height difference with the conductive part 120 set on the circuit board 400, so that a gap 170 is formed between the two and a certain height distance is formed.

[0120] It is understood that the circuit board 400 can be the motherboard structure of the electronic device 10, and the main control device of the electronic device 10 can be disposed on the circuit board 400. Of course, the circuit board 400 can also be other structures of the electronic device 10, such as, but not limited to, a small board or a flexible circuit board. Any structure that can carry the conductive element 120 can be the circuit board 400 of this application, and the embodiments of this application do not limit this. In some embodiments, the feed source 130 can be disposed on the circuit board 400, so that the circuit board 400 can carry the feed source 130, the ground system 140 and the conductive element 120. Of course, the feed source 130 can also be disposed on other carrier plates, such as, but not limited to, the bracket 700 or a small board, and the embodiments of this application do not limit the specific placement of the feed source 130.

[0121] It is understood that a grounding area can be provided on the circuit board 400, which can form a ground system 140. It is understood that the ground system 140 can be disposed on the surface of the circuit board 400; the ground system 140 can also be formed inside the circuit board 400, for example, the circuit board 400 can be a multi-layer structure, and a grounding area can be provided on one or more of these layers to form the ground system 140. By disposing of the ground system 140 on the circuit board 400, the conductive components 120 disposed on the circuit board 400 can more easily be electrically connected to the ground system 140, thus reducing the difficulty of electrical connection routing. It should be noted that the ground system 140 in this embodiment can also be disposed on other structures, such as, but not limited to, a dedicated ground system layer; this embodiment does not limit this.

[0122] It is understood that the support 700 may include a non-conductive material so that after the antenna radiator 110 is disposed on the support 700, the non-conductive material of the support 700 will not adversely affect the antenna radiator 110. Of course, the support 700 may also be a conductive material so that the antenna radiator 110 can be formed on the support 700, and a portion of the support 700 can serve as the antenna radiator 110.

[0123] It is understood that the bracket 700 can be an antenna bracket for the electronic device 10, and the electronic device 10 can be specially equipped with a support bracket to support the antenna radiator 110. Of course, the bracket 700 can also be a support structure already existing within the electronic device 10, such as, but not limited to, the battery cover, back cover, camera module base, speaker support frame, etc. of the electronic device 10. The specific structure of the bracket 700 is not limited in this embodiment. The antenna radiator 110 can be adapted to a suitable position on the bracket 700 according to the position of the conductive component 120, and the placement of the antenna radiator 110 is more flexible.

[0124] It is understood that the antenna radiator 110 can be directly formed on the support 700, for example, but not limited to, by means of laser direct forming (LDS), silver paste spraying, laser etching, etc. When the support 700 is a conductive structure, the antenna radiator 110 can also be formed on the support 700 by creating a free end through a slit. Of course, the antenna radiator 110 can also be directly or indirectly connected to a surface of the support 700, for example, but not limited to, by means of welding, screw fixing, etc. The embodiments of this application do not limit the specific way in which the antenna radiator 110 is disposed on the support 700.

[0125] The circuit board 400 may have a first element (not shown), and the conductive element 120 may be electrically connected to the first element to ground it. In this case, the conductive element 120 can serve as both a grounding element for the first element and part of the loop current path of the antenna device 100, allowing for multiplexing. For example, the conductive element 120 may be a grounding spring structure on the circuit board 400.

[0126] The circuit board 400 may have a second component (not shown). The conductive element 120 can be connected to both the second component and the circuit board 400, and can fix the second component to the circuit board 400. In this case, the conductive element 120 can serve as both a grounding element for the first component and a fixing connector for the second component; the conductive element 120 can also be reused. For example, the conductive element 120 can be a metal screw on the circuit board 400.

[0127] It should be noted that the first element and the second element can be components of the antenna device 100, for example, the first element and the second element can be another antenna radiator 110. Of course, the first element and the second element may not be components of the antenna device 100. The specific structure of the first element and the second element is not limited in the embodiments of this application.

[0128] It should be noted that the electronic device 10 is not limited to the structure described above. For example, it may also include a camera module, a sensor module, etc. For details on its specific structure, please refer to the description of the relevant technology, which will not be described here.

[0129] It should be understood that in the description of this application, terms such as "first" and "second" are used only to distinguish similar objects and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated.

[0130] The antenna device and electronic device provided in the embodiments of this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are only for the purpose of helping to understand the methods and core ideas of this application; at the same time, those skilled in the art will recognize that, based on the ideas of this application, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. An antenna device, characterized in that, include: The antenna radiator includes a first end, a second end, and a feed point and a grounding point disposed between the first end and the second end. The grounding point is electrically connected to the ground system and is grounded. A conductive element has a gap between it and the antenna radiator, allowing the conductive element to electromagnetically couple with the antenna radiator through the gap. The conductive element is also electrically connected to the ground system for grounding. A feed source, electrically connected to the feed point, is used to provide an excitation current, which is used to excite the antenna device to support wireless signals within a first frequency band. The excitation current flows through the antenna radiator, the ground system, and the conductive element, and is electromagnetically coupled to the antenna radiator via the gap to form a loop current path, thereby exciting the antenna radiator, the ground system, and the conductive element to work together in a first resonant mode to support wireless signals within the first frequency band. The excitation current is also used to enable the first conductor segment between the feed point and the first end to operate in a quarter-wavelength mode and the second conductor segment between the ground point and the second end to operate in a quarter-wavelength mode together in a resonant mode, so as to support wireless signals in the first frequency band range; The excitation current is also used to flow along the direction from the first end to the second end on the antenna radiator to excite the antenna radiator to operate in the fifth resonant mode and support wireless signals within the first frequency band.

2. The antenna device according to claim 1, characterized in that, The grounding point is located between the feed point and the second terminal. The grounding system has a first grounding terminal and a second grounding terminal. The conductive element is electrically connected to the first grounding terminal, and the grounding point is electrically connected to the second grounding terminal. A first path exists between the first grounding terminal and the second grounding terminal. The distance between the projection of the conductive element on the antenna radiator and the grounding point is less than the distance between the projection and the feed point. The excitation current flows through the antenna radiator between the second end and the grounding point, the first path, and the conductive element, and is electromagnetically coupled to the antenna radiator through the gap.

3. The antenna device according to claim 1, characterized in that, The grounding point is located between the feed point and the second terminal. A first grounding terminal is provided on the ground system. The conductive element is electrically connected to the first grounding terminal. The projection of the feed source onto the ground system is a projection area, and the second path is formed between the first grounding terminal and the projection area. The distance between the projection of the conductive element on the antenna radiator and the feed point is less than the distance between the projection and the ground point. The excitation current flows through the antenna radiator from the first end to the feed point, the second path, the conductive element, and is electromagnetically coupled to the antenna radiator through the gap.

4. The antenna device according to claim 1, characterized in that, At least a portion of the conductive element's projection onto the antenna radiator coincides with either the first end or the second end.

5. The antenna device according to claim 1, characterized in that, The feed point is located between the grounding point and the first end, and the length of the first conductor segment between the feed point and the first end is equal to the length of the second conductor segment between the grounding point and the second end; wherein... The excitation current flows in opposite directions on the first conductor segment and the second conductor segment, and the current density distributed on the first conductor segment is equal to the current density distributed on the second conductor segment, so as to excite the first conductor segment and the second conductor segment to work together in a second resonant mode to support wireless signals in the first frequency band range. The second resonant mode is different from the first resonant mode.

6. The antenna device according to claim 1, characterized in that, The feed point is located between the grounding point and the first end, and the length of the first conductor segment between the feed point and the first end is different from the length of the second conductor segment between the grounding point and the second end; wherein... The excitation current flows in opposite directions on the first conductor segment and the second conductor segment, and the current density distributed in the first conductor segment is different from the current density distributed in the second conductor segment, so as to excite the first conductor segment and the second conductor segment to work together in a resonant mode different from the first resonant mode, so as to support wireless signals in the first frequency band range.

7. The antenna device according to claim 6, characterized in that, The length of the first conductor segment is greater than the length of the second conductor segment, and the current density of the excitation current in the first conductor segment is greater than the current density distributed in the second conductor segment, so as to excite the first conductor segment and the second conductor segment to work together in a third resonant mode; and / or, The first conductor segment is larger than the second conductor segment, and the current density of the excitation current in the first conductor segment is less than the current density distributed in the second conductor segment, so as to excite the first conductor segment and the second conductor segment to work together in the fourth resonant mode.

8. The antenna device according to claim 1, characterized in that, The electrical length of the antenna radiator is equal to half the wavelength of the resonant frequency of the fifth resonant mode.

9. The antenna device according to any one of claims 1 to 8, characterized in that, Also includes: A matching circuit is provided, one end of which is electrically connected to the grounding point and the other end of which is electrically connected to the ground system and grounded. The matching circuit is used to perform impedance matching on the excitation current provided by the feed source.

10. The antenna device according to any one of claims 1 to 8, characterized in that, The first frequency band is the 5.15GHz-7.15GHz band.

11. An electronic device, characterized in that, Includes the antenna device as described in any one of claims 1 to 10.

12. The electronic device according to claim 11, characterized in that, The electronic device also includes: A circuit board, wherein a ground system is provided on the circuit board, and the conductive element is disposed on the circuit board; and A support frame is stacked on top of and spaced apart from the circuit board, and the support frame carries the antenna radiator.

13. An electronic device, characterized in that, include: Circuit board, wherein a ground system is provided on the circuit board; A conductive element is disposed on the circuit board, and the conductive element is electrically connected to the ground system to achieve grounding; The bracket is stacked and spaced apart from the circuit board. An antenna radiator is disposed on the bracket and has a gap between it and the conductive component. The antenna radiator can be electromagnetically coupled to the conductive component. The antenna radiator includes a first end and a second end, as well as a feed point and a grounding point disposed between the first end and the second end. The grounding point is electrically connected to the ground system and achieves grounding. The feed source is electrically connected to the feed point and provides excitation current. The excitation current flows through the antenna radiator, the ground system, and the conductive element, and is electromagnetically coupled to the antenna radiator via the gap to form a loop current path, thereby exciting the antenna radiator, the ground system, and the conductive element to work together in a first resonant mode to support wireless signals within a first frequency band. The excitation current is also used to enable the first conductor segment between the feed point and the first end to operate in a quarter-wavelength mode and the second conductor segment between the ground point and the second end to operate in a quarter-wavelength mode together in a resonant mode, so as to support wireless signals in the first frequency band range; The excitation current is also used to flow along the direction from the first end to the second end on the antenna radiator to excite the antenna radiator to operate in the fifth resonant mode and support wireless signals within the first frequency band.

14. The electronic device according to claim 13, characterized in that, The feed point is located between the grounding point and the first end. The length of the first conductor segment between the feed point and the first end is equal to the length of the second conductor segment between the grounding point and the second end. The excitation current flows in opposite directions on the first conductor segment and the second conductor segment, and the current density distributed on the first conductor segment is equal to the current density distributed on the second conductor segment, so as to excite the first conductor segment and the second conductor segment to work together in the second resonant mode.

15. The electronic device according to claim 13, characterized in that, The power supply point is located between the grounding point and the first end, and the length of the first conductor segment between the power supply point and the first end is greater than the length of the second conductor segment between the grounding point and the second end; The excitation current flows in opposite directions on the first conductor segment and the second conductor segment, and the current density distributed in the first conductor segment is greater than the current density distributed in the second conductor segment, so as to excite the first conductor segment and the second conductor segment to work together in the third resonant mode; and / or, The excitation current flows in opposite directions on the first conductor segment and the second conductor segment, and the current density distributed in the first conductor segment is less than the current density distributed in the second conductor segment, so as to excite the first conductor segment and the second conductor segment to work together in the fourth resonant mode.

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