Antenna device and electronic equipment

Abstract

The invention discloses an antenna device and electronic equipment, and relates to the technical field of antenna devices. The at least one antenna can be coupled with the antenna ground so as to transmit and receive wireless signals by utilizing at least part of the antenna ground; and the control assembly can change the surface current distribution of the antenna ground so as to adjust the radiation field pattern of the target antenna in the at least one antenna. The antenna device comprises the control assembly capable of changing the surface current distribution of the antenna ground, and the radiation field pattern of the target antenna can be adjusted through the control assembly, so that the radiation field pattern of the target antenna is adaptive to the current environment where the electronic equipment is located, and the communication performance of the electronic equipment can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of antenna devices, and in particular to an antenna device and an electronic device. Background Art

[0002] With the continuous development of science and technology, more and more electronic devices with wireless communication functions are widely used in people's daily life and work, bringing great convenience to people's daily life and work, and becoming an indispensable tool for people today.

[0003] For an electronic device, after the design is completed, the radiation pattern of the antenna device is fixed. Therefore, in existing electronic devices, the antenna device cannot adjust the radiation pattern according to the environment in which the electronic device is located, which will affect the communication performance of the electronic device. Summary of the invention

[0004] In view of the above problems, the present application provides an antenna device and an electronic device, and the specific solutions are as follows:

[0005] A first aspect of the present application provides an antenna device, including:

[0006] Antenna ground;

[0007] at least one antenna, the antenna being capable of coupling with the antenna ground to utilize at least a portion of the antenna ground to transmit and receive wireless signals;

[0008] The control component is capable of changing the surface current distribution of the antenna ground to adjust the radiation field pattern of the target antenna in at least one antenna.

[0009] Optionally, in the above antenna device, the control component includes at least one adjustment element capable of having different connection states with the antenna ground;

[0010] Different connection states between the target adjustment element in at least one adjustment element and the antenna ground result in different surface current distributions of the antenna ground, so that the target antenna has different radiation patterns.

[0011] Optionally, in the above antenna device, the adjustment element includes a radiation branch that is independently arranged from the antenna ground, and the radiation branch can have different first connection states and second connection states with the antenna ground;

[0012] In the first connection state, the radiation branch is disconnected from the antenna ground, the surface of the antenna ground has a first current distribution, and the target antenna has a first radiation field pattern;

[0013] In the second connection state, the radiation branch is electrically connected to the antenna ground, and the surface of the antenna ground has a second current distribution, which is different from the first current distribution, so that the target antenna has a second radiation pattern different from the first radiation pattern.

[0014] Optionally, in the above antenna device, the adjustment element includes a radiation slot opened on the antenna ground, the radiation slot includes an opening located on one side of the antenna ground, so that a part of the antenna ground serves as a radiation branch; the radiation slot and the antenna ground can have a first connection state and a second connection state;

[0015] In a first connection state, the surface of the antenna ground has a first current distribution, and the target antenna has a first radiation pattern;

[0016] In the second connection state, the surface of the antenna ground has a second current distribution, which is different from the first current distribution, so that the target antenna has a second radiation pattern different from the first radiation pattern.

[0017] Optionally, in the above antenna device, the distance between the target adjustment element and the target antenna is L, ,in, is the central wavelength of the target antenna's operating frequency;

[0018] And / or, the target adjustment element at least includes a radiation branch arranged toward the target antenna, and a size of the radiation branch is related to the central wavelength of the operating frequency of the target antenna.

[0019] Optionally, in the above antenna device, the target antenna includes a first antenna; the target adjustment element includes: a first radiation branch disposed toward the first antenna;

[0020] Or, the target antenna includes a first antenna and a second antenna arranged at intervals, and the target adjustment element includes: a first radiation branch arranged toward the first antenna and a second radiation branch arranged toward the second antenna;

[0021] The size of the first radiation branch is related to the central wavelength of the first antenna; the size of the second radiation branch is related to the central wavelength of the second antenna.

[0022] Optionally, in the above antenna device, the target adjustment element includes a third radiation branch arranged toward the target antenna;

[0023] The third radiation branch includes a first branch and a second branch, the size of the first branch is related to the central wavelength of the first communication frequency band of the target antenna, and the size of the second branch is related to the central wavelength of the second communication frequency band of the target antenna;

[0024] The first branch and the second branch are connected to the antenna ground based on the same switch element, or the first branch and the second branch are connected to the antenna ground via a switch element respectively.

[0025] Optionally, in the above-mentioned antenna device, the antenna ground includes at least two sub-antenna grounds, and the control component includes a connecting device arranged between the at least two sub-antenna grounds, and the connecting device can make the sub-antenna grounds have a connected state or an isolated state to change the surface current distribution of the antenna ground so that the target antenna has a different radiation field pattern.

[0026] A second aspect of the present application provides an electronic device, including:

[0027] at least one metal housing, the metal housing including an antenna ground;

[0028] at least one antenna, the antenna being capable of coupling with the antenna ground to utilize at least a portion of the antenna ground to transmit and receive wireless signals;

[0029] The control component located in the metal housing can change the surface current distribution of the antenna ground to adjust the radiation field pattern of the target antenna in at least one antenna.

[0030] Optionally, in the above electronic device, the control component includes: at least one adjustment element capable of having different connection states with the antenna ground;

[0031] Wherein, different connection states between the target adjustment element in at least one adjustment element and the antenna ground result in different surface current distributions of the antenna ground, so that the target antenna has different radiation field patterns;

[0032] and / or,

[0033] The control component can also adjust the connection state between the target adjustment element in at least one adjustment element and the antenna ground according to the operation state information of the electronic device to change the radiation field pattern of the target antenna.

[0034] By means of the above-mentioned technical scheme, in the antenna device and the electronic device provided by the present application, the antenna device includes a control component capable of changing the surface current distribution of the antenna ground. The radiation pattern of the target antenna can be adjusted through the control component so that the radiation pattern of the target antenna adapts to the current environment in which the electronic device is located, thereby improving the communication performance of the electronic device. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the related technologies, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0036] The structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with this technology. They are not used to limit the conditions under which this application can be implemented, and therefore have no substantive technical significance. Any structural modification, change in proportion or adjustment of size, without affecting the effects and purposes that can be achieved by this application, should still fall within the scope of the technical contents disclosed in this application.

[0037] Figure 1 It is a structural schematic diagram of an antenna device having an inverted F-type antenna;

[0038] Figure 2 for Figure 1 The radiation pattern diagram of the two middle antennas;

[0039] Figure 3 A schematic diagram of the structure of an antenna device provided in an embodiment of the present application;

[0040] Figure 4 A schematic diagram of the structure of another antenna device provided in an embodiment of the present application;

[0041] Figure 5 A schematic diagram of the structure of another antenna device provided in an embodiment of the present application;

[0042] Figure 6 A schematic diagram of the structure of another antenna device provided in an embodiment of the present application;

[0043] Figure 7 A schematic diagram of the structure of another antenna device provided in an embodiment of the present application;

[0044] Figure 8 for Figure 7 The antenna device shown has radiation patterns of the two target antennas respectively when the target adjustment element is disconnected from the antenna ground;

[0045] Fig. 9 for Figure 7 The antenna device shown has radiation patterns of the two target antennas when the target adjustment element is electrically connected to the antenna ground;

[0046] Fig.10 for Figure 7The current distribution diagram on the antenna ground surface of the antenna device shown in the figure when the target adjustment element is disconnected from the antenna ground;

[0047] Fig.11 for Figure 7 The current distribution diagram on the antenna ground surface of the antenna device shown in the figure when the target adjustment element is electrically connected to the antenna ground;

[0048] Fig.12 A schematic diagram of the structure of another antenna device provided in an embodiment of the present application;

[0049] Fig.13 A schematic diagram of the structure of another antenna device provided in an embodiment of the present application;

[0050] Fig.14 A schematic diagram of the structure of another antenna device provided in an embodiment of the present application;

[0051] Fig.15 A schematic diagram of the structure of another antenna device provided in an embodiment of the present application;

[0052] Fig.16 A schematic diagram of the structure of another antenna device provided in an embodiment of the present application;

[0053] Fig.17 A schematic diagram of the structure of another antenna device provided in an embodiment of the present application;

[0054] Fig.18 A schematic diagram of the structure of another antenna device provided in an embodiment of the present application;

[0055] Fig.19 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application.

[0056] Reference numerals:

[0057] 10-antenna ground; 101-sub-antenna ground; 11-antenna; 111-target antenna; 12-control component; 121-connector; 13-adjusting element; 131-target adjusting element; 132-switching element; 133-target position; 14-radiating branch; 14-first radiating branch; 142-second radiating branch; 143-third radiating branch; 15-radiating gap; 151-opening; 161-first antenna; 162-second antenna; 17-bent branch; 171-first branch; 172-second branch; 18-metal shell. DETAILED DESCRIPTION

[0058] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the embodiments of the present application. It is known to those skilled in the art that with the development of technology and the emergence of new scenarios, the technical solutions provided in the embodiments of the present application are also applicable to similar technical problems.

[0059] With the development of mobile terminal electronic devices, the requirements for wireless communication performance are getting higher and higher. However, due to the thin and light design and metal appearance requirements of electronic devices, antenna performance will be increasingly affected. Moreover, the requirements for the working aperture of the antenna cannot be reduced indefinitely. Due to space compression and the complex structural environment around the antenna, the performance is reduced, the radiation pattern becomes more directional, and the omnidirectional coverage capability is reduced. The antenna in an electronic device is usually a passive device. After the design is completed, its radiation direction and all performance parameters are fixed. If there are many blind spots in the radiation pattern, it will have a great impact on the overall wireless coverage and user experience.

[0060] In recent years, new antenna application methods have gradually emerged to address the above problems in order to improve the omnidirectional coverage of the radiation pattern. For example, the smart antenna system designs multiple working states of different radiation patterns on each antenna, and each radiation pattern has a different radiation direction. When the system is working, it automatically adjusts and adapts the radiation field according to the changes in the wireless signal path in different environments, selects the radiation direction with better signals, and enables the system to always work in the best transmission or reception state in any environment, providing better wireless connection characteristics.

[0061] Although smart antennas can change the antenna pattern based on the working environment to ensure better communication performance, smart antennas require improvements to the antenna structure and require the addition of a control unit to the antenna design in order to have different effects on the antenna and adjust the radiation pattern. This will increase the design complexity of the antenna structure and limit the adjustable modes. In addition, changes in the antenna structure will have an adverse effect on other antenna performance.

[0062] The inventors have discovered that for commonly used miniaturized antenna designs, a ground plane (or antenna ground) is usually used to enhance radiation performance. Also, since the antenna body is miniaturized and compressed, its own radiation capability decreases, and the energy radiated through the ground plane accounts for the majority. Therefore, changing the surface current distribution of the ground plane can more effectively adjust the far-field radiation pattern of the antenna.

[0063] refer to Figure 1 and Figure 2 , Figure 1 is a schematic diagram of the structure of an antenna device having an inverted F-type antenna, Figure 2 for Figure 1 Radiation pattern diagram of the two middle antennas. Figure 1In the antenna device shown, two antennas 11 are provided on the same side of the metal panel serving as the antenna ground 10, and both antennas 11 are inverted-F antennas (IFA for short). It should be noted that in the embodiment of the present application, the antenna type is not limited to IFA, and may also be other types of monopole antennas or other types of ground plane antennas. The embodiment of the present application does not limit the specific type of the antenna 11.

[0064] Figure 1 Taking the typical structure of the most commonly used inverted F-type antenna as an example, two typical inverted F-type antennas are designed on one side of a metal panel with a size of 300mm×200mm, wherein the first direction x and the second direction y intersect vertically, the antenna ground 10 is located in the xy plane, and the antenna 11 is located in the xy plane.

[0065] The two antennas 11 are connected to the antenna ground 10 respectively. Because of the existence of the antenna ground 10, the antenna ground 10 plays a major role in radiation. Figure 2 As shown, the distribution of the radiation patterns of the two antennas 11 is affected by the size of the antenna ground 10. The radiation patterns of the two antennas 11 have multiple lobes and the radiation energy is more concentrated in the direction represented by the antenna ground 10. Therefore, by controlling the surface current distribution of the antenna ground 10, the far-field radiation pattern of the antenna 11 can be effectively adjusted without affecting the original design of the antenna 11.

[0066] In view of this, an embodiment of the present application provides an antenna device, including:

[0067] Antenna ground;

[0068] at least one antenna, the antenna being capable of coupling with the antenna ground to utilize at least a portion of the antenna ground to transmit and receive wireless signals;

[0069] The control component is capable of changing the surface current distribution of the antenna ground to adjust the radiation field pattern of the target antenna in at least one antenna.

[0070] In the antenna device provided in the embodiment of the present application, the antenna device includes a control component that can change the surface current distribution of the antenna ground. The radiation field pattern of the target antenna can be adjusted through the control component so that the radiation field pattern of the target antenna adapts to the current environment in which the electronic device is located, thereby improving the communication performance of the electronic device.

[0071] Among them, the antenna is a grounded antenna, and the control component can adjust the radiation pattern of the target antenna by changing the surface current distribution of the antenna ground. The control component and the target antenna are different structural parts, and the two are connected to the antenna ground respectively. There is no need to change the structure of the target antenna, so the control component will not change the structural design of the target antenna. The control component can be designed independently of the target antenna, and the design of the control component is simpler and more flexible, and can have more adjustment modes. While achieving the goal of switching the radiation pattern of the target antenna, the performance of the target antenna is less affected.

[0072] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the present application is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0073] refer to Figure 3 , Figure 3 A schematic diagram of the structure of an antenna device provided in an embodiment of the present application is shown in FIG. Figure 3 The antenna device shown comprises:

[0074] Antenna ground 10;

[0075] at least one antenna 11, the antenna 11 being capable of coupling with the antenna ground 10 to utilize at least a portion of the antenna ground 10 to transmit and receive wireless signals;

[0076] The control component 12 can change the surface current distribution of the antenna ground 10 to adjust the radiation field pattern of the target antenna 111 in the at least one antenna 11.

[0077] In the embodiment of the present application, the antenna 11 is electrically connected to the antenna ground 10, and the antenna 11 is a ground plane antenna that can improve antenna performance by being grounded.

[0078] The radiation pattern of the antenna 11 refers to the distribution of the electric field and magnetic field of the electromagnetic waves radiated by the antenna 11 in space, and it describes the characteristics of the antenna 11 in transmitting or receiving radio waves, such as directivity and efficiency.

[0079] In the antenna device, the control component 12 for adjusting the radiation pattern of the target antenna 111 is located on the same side of the antenna ground 10 as the target antenna 111, so that the surface current distribution on the side of the antenna ground 10 on which the target antenna 111 is arranged can be effectively adjusted by the control component 12, thereby the radiation pattern of the target antenna 111 can be effectively adjusted by the control component 12.

[0080] When antenna 11 transmits a signal: the radiation pattern of antenna 11 determines the radiation direction and intensity distribution of the signal in space. For example, the omnidirectional antenna 11 has approximately the same radiation intensity in all directions, which is suitable for scenarios that require uniform coverage; the directional radiation pattern antenna has a sharp directional radiation characteristic, which can concentrate energy to radiate in a specific direction, and is suitable for point-to-point long-distance communications. When antenna 11 receives a signal: the radiation pattern of the receiving antenna will also affect its ability to receive waves from different directions. If the radiation pattern of the receiving antenna matches the radiation pattern of the transmitting antenna, the reception effect will be better. For example, when the transmitting antenna adopts a directional radiation pattern, the receiving antenna should also adopt a corresponding directional receiving mode to better receive signals from a specific direction.

[0081] Optionally, the target antenna 111 and the corresponding control component 12 can be arranged on the same side of the antenna ground 10. The target antenna 111 and the corresponding control component 12 are located at different positions on the same side of the antenna ground 10, and the radiation pattern of the target antenna 111 can be effectively adjusted by adjusting the control component 12.

[0082] Since the control component 12 and the target antenna 111 are located at different positions on the same side of the antenna base 10 , the design of the control component 12 is simpler and more flexible, and will not affect the design and performance of the target antenna 111 .

[0083] In an implementation manner of the embodiment of the present application, the antenna device may include a target antenna 111 whose radiation pattern can be adjusted by the control component 12 , or may include multiple target antennas 111 whose radiation pattern can be adjusted by the control component 12 .

[0084] When there are multiple target antennas 111, at the same time, for different target antennas 111, the current distribution parameters in the antenna ground 10 may be different, or, for different target antennas 111, the current distribution parameters in the antenna ground 10 may be the same. In the embodiment of the present application, the current distribution parameters of each target antenna 111 may be adjusted by the control component 12 to adjust the radiation pattern of each target antenna 111.

[0085] Optionally, different target antennas 111 can share the same control component 12, so that different target antennas 111 can adjust their respective radiation patterns through the same control component 12; different target antennas 111 can also be set to correspond to a control component 12, so that different target antennas 111 can adjust their respective radiation patterns through separate control components 12.

[0086] Optionally, the adjustment areas of the surface current distribution of each target antenna 111 on the antenna ground 10 are different. In this case, different target antennas 111 may use the same control component 12 or different control components.

[0087] refer to Figure 4 , Figure 4 This is a schematic diagram of the structure of another antenna device provided in an embodiment of the present application. Based on the above implementation, Figure 4 In the antenna device shown, the control component 12 includes at least one adjustment element 13 that can have different connection states with the antenna ground 10; wherein the different connection states between the target adjustment element 131 in at least one adjustment element 13 and the antenna ground 10 make the surface current distribution of the antenna ground 10 different, so that the target antenna 111 has a different radiation field pattern.

[0088] exist Figure 4 In the manner shown, the control component 12 can change the surface current distribution of the antenna ground 10 by adjusting the connection state between the target adjustment element 131 and the antenna ground, thereby adjusting the radiation pattern of the target antenna 111. The radiation pattern of the target antenna 111 is adjusted in a simple manner.

[0089] In the embodiment of the present application, by designing the layout of the target adjustment element 131 and the antenna ground 10 , the antenna device can change the current distribution of the entire antenna ground 10 or change the current distribution of the local antenna ground 10 through the target adjustment element 131 .

[0090] Optionally, the target adjustment element 131 and the antenna ground 10 can be connected via a switch element 132, and the switch element 132 can respond to a switch control signal to control the target adjustment element 131 and the antenna ground 10 to be short-circuited or open-circuited, thereby enabling different connection states between the target adjustment element 131 and the antenna ground 10.

[0091] For the same target antenna 111, a single target adjustment element 131 may be provided, or multiple target adjustment elements 131 may be provided, according to the use requirements of the working mode of the antenna device. For example, in the second direction y, one target adjustment element 131 may be provided on one side of the target antenna 111, or one target adjustment element 131 may be provided on both sides of the target antenna 111, or multiple target adjustment elements 131 may be provided on the same side of the target antenna 111.

[0092] When the same target antenna 111 is simultaneously provided with a plurality of target adjustment elements 131, more connection state combination modes can be realized between the plurality of target adjustment elements 131 and the antenna ground 10. The target antenna 111 can have different radiation patterns in different connection state combination modes, and different radiation patterns can adapt to different communication environments.

[0093] In one implementation of the present application, the Figure 4 As shown, the adjusting element 13 includes a radiating branch 14 independently arranged from the antenna ground 10, and the radiating branch 14 can have different first connection states and second connection states with the antenna ground 10; in the first connection state, the radiating branch 14 is disconnected from the antenna ground 10, the surface of the antenna ground 10 has a first current distribution, and the target antenna 111 has a first radiation field pattern; in the second connection state, the radiating branch 14 is electrically connected to the antenna ground 10, the surface of the antenna ground 10 has a second current distribution, and the second current distribution is different from the first current distribution, so that the target antenna 111 has a second radiation field pattern different from the first radiation field pattern.

[0094] The connection state between the radiation branch 14 and the antenna ground 10 can be switched through the corresponding switch element 132 .

[0095] exist Figure 4 In the illustrated embodiment, by setting the shape and size of the radiation branch 14, the target antenna 111 can have different radiation patterns when the radiation branch 14 is in the first connection state and the second connection state, thereby achieving flexible adjustment of the radiation pattern of the target antenna 111.

[0096] refer to Figure 5 , Figure 5 This is a schematic diagram of the structure of another antenna device provided in an embodiment of the present application. Based on the above method, Figure 5 In the antenna device shown, the adjustment element 13 includes a radiation slot 15 opened on the antenna ground 10, and the radiation slot 15 includes a portion located on one side of the antenna ground 10 (i.e. Figure 5 An opening 151 is formed on the upper side of the antenna ground 10 in the middle, so that a part of the antenna ground 10 serves as a radiation branch 14; the radiation slot 15 and the antenna ground 10 can have a first connection state and a second connection state; in the first connection state, the surface of the antenna ground 10 has a first current distribution, and the target antenna 111 has a first radiation field pattern; in the second connection state, the surface of the antenna ground 10 has a second current distribution, and the second current distribution is different from the first current distribution, so that the target antenna 111 has a second radiation field pattern different from the first radiation field pattern.

[0097] exist Figure 5In the illustrated method, by setting a radiation slot 15 on the antenna ground 10, a part of the antenna ground 10 can be used as a radiation branch 14, and by adjusting the connection state between the radiation slot 15 and the antenna ground 10, the target antenna 111 can have different radiation patterns when the radiation slot 15 is in a first connection state and a second connection state, thereby realizing flexible adjustment of the radiation pattern of the target antenna 111. This method does not require a separate conductive member to be set as a radiation branch 14, can improve the integration of the antenna device, and facilitates the miniaturization design of the antenna device.

[0098] Optionally, in Figure 5 In the manner shown, the connection state between the radiation slot 15 and the antenna ground 10 can be controlled by the switch element 132. If the switch element 132 short-circuits the two opposite side walls of the opening 151, the current in the antenna ground 10 can pass through the opening 151 based on the switch element 132. If the switch element 132 disconnects the two opposite side walls of the opening 151, the current in the antenna ground 10 is limited by the separation of the opening 151 and cannot be transmitted between the two opposite side walls at the position of the opening 151, so that the target antenna 111 can correspond to different current distributions when the radiation slot 15 is in the first connection state and the second connection state, and has different radiation field patterns.

[0099] In one implementation of the embodiment of the present application, the distance between the target adjustment element 131 and the target antenna 111 is L, and L is the distance between the target position and the grounding point of the target antenna 111 in the length direction of the target side. The target position is the position where the antenna ground 10 connects to the target adjustment element 131, and the target adjustment element 131 is connected to the antenna ground through the target position. If the adjustment element 13 includes a radiation branch 14 independent of the antenna ground 10, the target position is the connection position between the switch element 132 and the antenna ground 10. If the adjustment element 13 includes a radiation slot 15 opened on the antenna ground 10, and the radiation branch 14 is formed based on the radiation slot 15, then the target position is the area of ​​the antenna ground 10 at the end of the radiation slot 15 away from the target antenna 111. The side of the antenna ground 10 where the target adjustment element 131 and the target antenna 111 are provided is the target side.

[0100] Optionally, in the embodiment of the present application, ,in, is the central wavelength of the operating frequency of the target antenna 111. For a certain target antenna 111, the operating frequency of its transceiver signal is determined, and correspondingly, is a constant that can be determined.

[0101] In the embodiment of the present application, it is set , the distance L between the target adjustment element 131 and the target antenna 111 can be adapted to the central wavelength of the target antenna 111, so that when the target adjustment element 131 switches the state with the antenna ground 10, the surface current distribution of the antenna ground 10 can be adjusted to a large extent, and the surface current distribution of the antenna ground 10 can effectively change the radiation field pattern of the target antenna 111.

[0102] Optionally, the target adjustment element 131 may include at least a radiation branch 14 disposed toward the target antenna 111, and the size of the radiation branch 14 may be approximately equal to the central wavelength of the operating frequency of the target antenna 111. For example, the size of the radiation branch 14 can be set to be equal to or approximately equal to In this method, the size of the radiation branch 14 can be designed based on the central wavelength of the operating frequency of the target antenna 111, so that the size of the radiation branch 14 is consistent with the central wavelength. The radiation branch 14 is matched so that the radiation pattern of the target antenna 111 can be effectively adjusted.

[0103] refer to Figure 6 , Figure 6 This is a schematic diagram of the structure of another antenna device provided in an embodiment of the present application. Based on the above implementation, Figure 6 In the antenna device shown, the target antenna 111 includes a first antenna 161; the target adjustment element 131 includes: a first radiation branch 141 arranged toward the first antenna 161. In this manner, the antenna device includes a target antenna 111, the target antenna 111 is the first antenna 161, and its corresponding radiation branch 14 is the first radiation branch 141. The first antenna 161 can adjust the radiation pattern through the first radiation branch 141.

[0104] exist Figure 6 In the illustrated manner, the first radiating branch 141 is taken as an example of a radiating branch 14 independently provided on the antenna ground 10. Obviously, the first radiating branch 141 can also be a part of the antenna ground 10. As described above, the first radiating branch 141 can be formed based on the radiating slot 15 provided on the antenna ground 10.

[0105] refer to Figure 7 , Figure 7 This is a schematic diagram of the structure of another antenna device provided in an embodiment of the present application. Based on the above implementation, Figure 7In the antenna device shown, the target antenna 111 includes a first antenna 161 and a second antenna 162 arranged at intervals, and the target adjustment element 131 includes: a first radiation branch 141 arranged toward the first antenna 161 and a second radiation branch 142 arranged toward the second antenna 162; wherein the size of the first radiation branch 141 is equal to the first central wavelength of the first antenna 161. For example, the size of the first radiation branch 141 may be set equal to or approximately equal to The size of the second radiation branch 142 and the second central wavelength of the second antenna 162 For example, the size of the second radiation branch 142 may be set equal to or approximately equal to .

[0106] exist Figure 7 In the illustrated manner, the first antenna 161 and the second antenna 162 can adjust their respective radiation patterns through the first radiation branch 141 and the second radiation branch 142 respectively.

[0107] As described above, for a determined target antenna 111, the operating frequency of its transceiver signal is determined, and correspondingly, its central wavelength is a constant that can be determined. Therefore, for a determined first antenna 161 and a determined second antenna 162, and The operating frequencies of the first antenna 161 and the second antenna 162 can be the same or different. If the operating frequencies of the two antennas are the same, then and If the operating frequencies of the two are different, then and different.

[0108] In the same target adjustment element 131, the first radiation branch 141 and the second radiation branch 142 can be connected to the antenna ground 10 through the same switching element 132, so that the connection status of the first radiation branch 141 and the second radiation branch 142 and the antenna ground 10 can be synchronously controlled, so that the two are synchronously in an open-circuit state or synchronously in a short-circuit state with the antenna ground 10, so as to realize the synchronous adjustment of the radiation field patterns of the two target antennas 111.

[0109] When the layout space of the antenna device is small, it can be Figure 7 As shown, the first antenna 161 and the second antenna 162 share the same target adjustment element 131. Optionally, if the target adjustment element 131 is spaced from the first antenna 161 by a first distance L 1 , and has a second distance L with the second antenna 162 2 , , .

[0110] In other embodiments, if the layout space of the antenna device is sufficient, two target adjustment elements 131 can be arranged between the first antenna 161 and the second antenna 162, and a first distance L is provided between the first antenna 161 and the adjacent target adjustment element 131. 1 The second antenna 162 has a second distance L from the adjacent target adjustment element 131 2 , , .

[0111] exist Figure 7 In the illustrated manner, the antenna 10 can be connected to the target adjustment element 131 at the target position 133, and there is a first distance L between the target position 133 and the first antenna 161. 1 , and has a second distance L with the second antenna 162 2 .

[0112] Optionally, the first radiation branch 141 and the second radiation branch 142 are an integrated structure, and the two are connected to the target position 133 of the antenna ground 10 through the switch element 132. Figure 7 As shown, the target adjustment element 131 is a T-shaped structure, and the target adjustment element 131 is independently arranged outside the antenna ground 10 .

[0113] Optionally, in Figure 7 In the manner shown, the first antenna 161 and the second antenna 162 may be set to be the same and have the same operating frequency. , At this time, a T-shaped target adjustment element 131 can be set at the target position 133 between the first antenna 161 and the second antenna 162. The two arms of the T-shaped target adjustment element 131 are both , that is, the lengths of the first radiation branch 141 and the second radiation branch 142 are both .

[0114] The target adjustment element 131 of the T-shaped structure can switch the connection state with the antenna ground 10 through a switch element 132. Specifically, when the switch element 132 is turned on, the two radiation branches 14 are electrically connected to the antenna ground 10, and when the switch element 132 is turned off, the two radiation branches 14 are disconnected from the antenna ground 10.

[0115] refer to Figure 8 and Fig. 9 , Figure 8 for Figure 7 The radiation pattern diagrams of the two target antennas of the antenna device shown in FIG. 1 when the target adjustment element is disconnected from the antenna ground, Fig. 9 for Figure 7The radiation pattern diagrams of the two target antennas of the antenna device shown in the figure are respectively shown when the target adjustment element is electrically connected to the antenna ground. When the switch element 132 is disconnected, the first radiation branch 141 and the second radiation branch 142 are both in a floating state and are disconnected from the antenna ground 10; when the switch element 132 is turned on, the first radiation branch 141 and the second radiation branch 142 are both in a grounded state and are electrically connected to the antenna ground 10. Figure 8 The left figure in the middle is a radiation pattern diagram of the first antenna 161 when the first radiation branch 141 is floating, and the right figure is a radiation pattern diagram of the second antenna 162 when the second radiation branch 142 is floating. Fig. 9 The left figure in the middle is a radiation pattern diagram of the first antenna 161 when the first radiation branch 141 is grounded, and the right figure is a radiation pattern diagram of the second antenna 162 when the second radiation branch 142 is grounded.

[0116] contrast Figure 8 and Fig. 9 Middle left picture, comparison Figure 8 Middle right picture and Fig. 9 As can be seen from the middle right figure, for any one of the first antenna 161 and the second antenna 162, the radiation pattern is significantly different when the corresponding radiation branch 141 is in a connected state and a disconnected state with the antenna ground 10. There is no need to adjust the structural design of the target antenna 111. By controlling the connection state between the target adjustment element 131 and the antenna ground 10, the target antenna 111 can be effectively controlled to switch between different radiation patterns.

[0117] contrast Figure 1 and Figure 7 ,when Figure 1 When the two antennas 11 are used as the first antenna 161 and the second antenna 162 respectively, Figure 1 Based on the manner shown in the figure, a target adjustment element 131 is set between the first antenna 161 and the second antenna 162 to form the following Figure 7 The antenna device of the structure shown. That is, Figure 7 and Figure 1 The only difference is that the target adjustment element 131 is added, and other design parameters are the same.

[0118] When the target adjustment element 131 is disconnected from the antenna ground 10, the Figure 2 and Figure 8 As shown, it can be seen that Figure 2 and Figure 8 The radiation pattern of the first antenna 161 is the same as that of Figure 2 and Figure 8 The radiation pattern of the second antenna 162 is the same. It can be seen that in the embodiment of the present application, when the target adjustment element 131 is disconnected from the antenna ground 10, the original radiation pattern of the target antenna 111 is not affected.

[0119] When the target adjustment element 131 is electrically connected to the antenna ground 10, the radiation efficiency and radiation directivity of the two target antennas 111 remain at similar levels, and the radiation pattern of each target antenna 111 is greatly adjusted, and the radiation energy is more concentrated on the side of the antenna ground 10 where the target antenna 111 is provided. Therefore, the embodiment of the present application can achieve the switching of the radiation pattern of the target antenna 111 without affecting other performances of the target antenna 111.

[0120] refer to Fig.10 and Fig.11 , Fig.10 for Figure 7 The current distribution diagram on the antenna ground surface of the antenna device shown in FIG. 1 when the target adjustment element is disconnected from the antenna ground, Fig.11 for Figure 7 The antenna device shown is a current distribution diagram on the surface of the antenna ground when the target adjustment element is electrically connected to the antenna ground.

[0121] contrast Fig.10 and Fig.11 The overall surface current distribution in the antenna device shown in FIG. 1 shows that when the target adjustment element 131 of the T-shaped structure is used, if the target adjustment element 131 is disconnected from the antenna ground 10, the first radiation branch 141 is in a floating state, such as Fig.10 As shown, the current excited by the first antenna 161 periodically flows and diffuses to the entire antenna ground 10 with the first antenna 161 as the center; if the target adjustment element 131 is electrically connected to the antenna ground 10, the first radiation branch 141 is in a grounded state, such as Fig.11 The current excited by the first antenna 161 is more concentrated on the target adjustment element 131 and the antenna ground 10 on the same side, so the radiation pattern of the first antenna 161 is more concentrated on this side.

[0122] In addition, Figure 7 In the illustrated embodiment, since the target adjustment element 131 is located between the first antenna 161 and the second antenna 162 , the radiation patterns of the two target antennas 111 can be synchronously switched through the same target adjustment element 131 .

[0123] When the antenna device includes the first antenna 161 and the second antenna 162, the structure of the antenna device can also be as follows: Fig.12 shown.

[0124] refer to Fig.12 , Fig.12 This is a schematic diagram of the structure of another antenna device provided in an embodiment of the present application. Based on the above implementation, Fig.12In the antenna device shown, the antenna ground 10 is formed with a radiation slot 15 on both sides of the target position 133 to form a first radiation branch 141 and a second radiation branch 142 on one side where the target antenna 111 is disposed.

[0125] exist Fig.12 In the illustrated embodiment, the antenna ground 10 has two radiation slots 15 formed in a surface of one side where the target antenna 111 is provided, so as to form a T-shaped target adjustment element 131 , and reuse the local antenna ground 10 as the target adjustment element 131 .

[0126] As described above, in the embodiment of the present application, the radiation pattern of the corresponding target antenna 111 can be adjusted by the target adjustment element 131. The target adjustment element 131 includes a radiation branch 14 that can adjust the current distribution on the surface of the antenna ground 10, and the radiation branch 14 is directed toward the corresponding target antenna 111.

[0127] like Figure 4-Figure 6 In any of the ways shown, when there is a target antenna 111 , the target adjustment element 131 can be an inverted L-shaped structure with a radiation branch 14 .

[0128] When a plurality of target antennas 111 are disposed on the same side of the antenna ground 10, two adjacent target antennas 111 may share the same target adjustment element 131. Figure 7 or Fig.12 As shown, the target adjustment element 131 may be a T-shaped structure having two radiation branches 14 .

[0129] refer to Fig.13 , Fig.13 This is a schematic diagram of the structure of another antenna device provided in an embodiment of the present application. Based on the above implementation, Fig.13 In the antenna device shown, one end of the radiation branch 14 facing the corresponding target antenna 111 is connected to a bending branch 17 , and the bending branch 17 can be bent relative to the side of the connected radiation branch 14 facing the antenna ground 10 .

[0130] exist Fig.13 In the illustrated manner, an antenna device having two target antennas 111 is used as an example for illustration, and the first radiation branch 141 and the second radiation branch 142 are respectively connected with a bent branch 17. In this case, an inverted E-shaped target adjustment element 131 can be formed. In other manners, when there is one target antenna, the bent branch 17 can also be connected on the basis of the above-mentioned inverted L-shaped radiation branch.

[0131] refer to Fig.14 , Fig.14 A schematic diagram of the structure of another antenna device provided in an embodiment of the present application, Fig.13 The difference between the methods shown is that Fig.14 The middle bending branch 17 has a plurality of bending line segments.

[0132] like Fig.13 or Fig.14 As shown, in the embodiment of the present application, by connecting a bent branch 17 at one end of the radiating branch 14 toward the corresponding target antenna 111, and bending the bent branch 17 toward the antenna ground 10, the length of the branch structure corresponding to the target antenna 111 can be increased within a limited layout space, so that the length of the branch structure meets the length requirement for adjusting the radiation field pattern of the target antenna 111.

[0133] like Figure 4-Figure 7 , Figure 12-14 As shown in any of the methods, for a target antenna 111, if it is a single-band antenna, the radiation branch 14 corresponding to the target antenna 111 can be a single-branch structure with one branch.

[0134] When the target antenna 111 is a multi-band antenna, such as Fig.15 As shown, the radiation branch 14 corresponding to the target antenna 111 can be provided with a branch corresponding to each communication frequency band of the target antenna 111, and the radiation branch 14 is a multi-branch structure. For a multi-band antenna, different communication frequency bands correspond to different operating frequencies and different communication wavelengths.

[0135] refer to Fig.15 , Fig.15 This is a schematic diagram of the structure of another antenna device provided in an embodiment of the present application. Based on the above implementation, Fig.15 In the antenna device shown, for a target antenna 111, the corresponding target adjustment element 131 includes at least a third radiation branch 143 disposed toward the target antenna 111. The third radiation branch 143 includes a first branch 171 and a second branch 172, the size of the first branch 171 is related to the center wavelength of the first communication frequency band of the target antenna 111, and the size of the second branch 172 is related to the center wavelength of the second communication frequency band of the target antenna 111. In this manner, the first branch 171 and the second branch 172 in the radiation branch 14 are connected to the antenna ground 10 through the same switch element 132.

[0136] exist Fig.15 In the illustrated manner, the target antenna 111 includes two communication frequency bands as an example for illustration, and the radiation branch 14 corresponding to the target antenna 111 includes two branches, and the two branches respectively correspond to a communication frequency band of the target antenna 111. Optionally, the size of the branch in the third radiation branch 143 is equal to one quarter of the central wavelength of the corresponding communication frequency band.

[0137] refer to Fig.16 , Fig.16A schematic diagram of the structure of another antenna device provided in an embodiment of the present application, Fig.15 The difference between the methods shown is that Fig.16 In the illustrated embodiment, the first branch 171 and the second branch 172 in the third radiation branch 143 are connected to the antenna ground 10 via a switch element 132 respectively.

[0138] like Fig.15 or Fig.16 As shown, for the multi-band antenna 11, the distance between the branch in the radiation branch 14 and the antenna can be controlled to adjust the radiation pattern corresponding to different communication frequency bands. Fig.15 As shown, the branches corresponding to different communication frequency bands can be connected to the antenna ground 10 through the same switch element 132 to synchronously adjust the radiation field patterns of different communication frequency bands; or as shown in FIG. Fig.16 As shown, different switching elements 132 are respectively connected to the antenna ground, so that grounding branches can be arranged separately for different communication frequency bands, so that the branches of different communication frequency bands can independently control the grounding state, achieving a more targeted control effect.

[0139] refer to Fig.17 , Fig.17 This is a schematic diagram of the structure of another antenna device provided in an embodiment of the present application. Based on the above implementation, Fig.17 In the illustrated manner, a control component 12 is respectively disposed on opposite sides of a target antenna 111. In this manner, a control component 12 is respectively disposed on both sides of the target antenna 111, the target antenna 111 is located between the two control components 12, and the target adjustment elements 131 in the two control components 12 have four different combinations of connection states with the antenna ground 10, so that the target antenna 111 can have more radiation patterns, so as to be suitable for more communication environments.

[0140] refer to Fig.18 , Fig.18 This is a schematic diagram of the structure of another antenna device provided in an embodiment of the present application. Based on the above implementation, Fig.18In the illustrated manner, the antenna ground 10 includes at least two sub-antenna grounds 101, and the control component 12 includes a connecting device 121 disposed between at least two sub-antenna grounds 101. The connecting device 121 can make the sub-antenna grounds 101 have a connected state or an isolated state, so as to change the surface current distribution of the antenna ground 10, so that the target antenna 111 has a different radiation pattern. In this manner, at least one of the shape of the sub-antenna ground 101 connected to the target antenna 111, the area of ​​the sub-antenna ground 101, the hierarchical relationship and the arrangement relationship of the sub-antenna ground 101 can be changed through the connecting device 121, so as to adjust the surface current distribution of the antenna ground 10, and then adjust the radiation pattern of the target antenna 111.

[0141] For two adjacent sub-antennas 101, Fig.18 As shown, electrical connection needs to be made through two connecting devices 121. The conduction states of the two connecting devices 121 are synchronized to form a complete ground plane between the two sub-antenna grounds, thereby forming a return path.

[0142] exist Fig.18 In the illustrated manner, the antenna ground 10 includes two sequentially arranged sub-antenna grounds 101 as an example for illustration. In other manners, the antenna ground 10 may also include more than two sub-antenna grounds 101, and adjacent sub-antenna grounds 101 are connected via connecting devices 121 respectively.

[0143] Optionally, the connecting device 121 may be an electronic switch or a connecting circuit, etc. The embodiment of the present application does not limit the line of sight of the connecting device 121 .

[0144] Optionally, the shape of the sub-antenna ground 101 can be any one of a rectangle, a circle, a triangle, and an irregular plane figure. The shape of the sub-antenna ground 101 can be set according to the installation environment of the antenna device. The embodiment of the present application does not limit the shape of the sub-antenna ground 101. The shapes of different sub-antenna grounds 101 can be the same or different. In order to facilitate the process preparation of the antenna device, each sub-antenna ground 101 can be set to have the same shape.

[0145] In an embodiment of the present application, the control component 12 can be set to include multiple connecting devices 121, and the multiple connecting devices 121 have multiple different switch combination states. In different switch combination states, the antenna ground 10 has different surface current distributions, so that the target antenna 111 can have more radiation field patterns, so that a variety of different communication environments can be used.

[0146] It can be seen from the above description that in the antenna device provided in the embodiment of the present application, a target adjustment element 131 is provided on one side of the antenna ground 10 where the target antenna 111 is provided, and the target adjustment element 131 can be a T-shaped, inverted L-shaped, or inverted E-shaped structure. The antenna device can adjust the radiation field pattern of the target antenna 111 through the target adjustment element 131, and has no effect on other performances of the target antenna 111.

[0147] The radiation branch 14 in the target adjustment element 131 can be independently set outside the antenna ground 10, or it can be formed based on the radiation gap 15 by utilizing the internal space at the edge of the antenna ground 10, or it can be constructed by utilizing other structures such as the casing of the electronic device.

[0148] Since the present application can construct the target adjustment element 131 of the control component 12 on the antenna ground 10 outside the target antenna 111, there is no need to adjust the structural design of the target antenna 111, which can make the design of the target adjustment element 131 simpler and more flexible. Moreover, the target adjustment element 131 can also be set to control the branches of the corresponding communication frequency band radiation pattern for the multi-band antenna, so as to achieve efficient adjustment of the radiation pattern of different communication frequency bands.

[0149] In addition, when the layout space in the antenna device is limited, the size of the branch structure can be increased by the bent branch 17 connected to the radiation branch 14 to save the length occupied by the target adjustment element 131 .

[0150] As can be seen from the radiation pattern diagram provided in the embodiment of the present application and the surface current distribution diagram of the antenna ground 10, the embodiment of the present application can achieve flexible adjustment of the radiation pattern of the target antenna 111. Compared with the smart antenna design that requires changing the antenna structure, the technical solution of the present application is easier to implement and has little impact on the antenna performance.

[0151] Based on the antenna device provided in the above embodiment, another embodiment of the present application further provides an electronic device, which can be Fig.19 shown.

[0152] refer to Fig.19 , Fig.19 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application, combined with the above-mentioned embodiment drawings and Fig.19 As shown, the electronic device includes: at least one metal shell 18, the metal shell 18 includes an antenna ground 10; at least one antenna 11, the antenna 11 can be coupled to the antenna ground 10 to utilize at least a portion of the antenna ground 10 to send and receive wireless signals; a control component 12 located in the metal shell 18, which can change the surface current distribution of the antenna ground 10 to adjust the radiation field pattern of the target antenna 111 in the at least one antenna 11.

[0153] If the electronic device is a notebook computer, the metal shell 18 may be a C shell or a D shell of a keyboard body of the notebook computer, and the antenna device is integrated in the keyboard body.

[0154] In the embodiment of the present application, the electronic device may be any one of a laptop computer, a tablet computer and a wearable device, and is not limited to Fig.19 As described above, the design of the antenna device control component 12 in the embodiment of the present application does not affect the target antenna 111, and is easy to be integrated and applied in mobile communication terminals such as laptops, tablet computers and wearable devices.

[0155] In the electronic device, the control component 12 includes: at least one adjustment element 13 that can have different connection states with the antenna ground 10; wherein the different connection states between the target adjustment element 131 in the at least one adjustment element 13 and the antenna ground 10 make the surface current distribution of the antenna ground 10 different, so that the target antenna 111 has different radiation patterns. Therefore, the electronic device can adjust the radiation pattern of the target antenna 111 by controlling the connection state between the target adjustment element 131 and the antenna ground 10.

[0156] In the embodiment of the present application, the control component 12 can also adjust the connection state between the target adjustment element 131 in at least one adjustment element 13 and the antenna ground 10 according to the operating status information of the electronic device to change the radiation field pattern of the target antenna 111.

[0157] The electronic device includes an intelligent antenna system for scanning the performance parameters of the target antenna 111 under different connection states of the target adjustment element 131 to select a connection state adapted to the current environment of the electronic device so that the target antenna 111 can have better performance parameters in the current environment.

[0158] In the specification of this application, each embodiment is described in a progressive, parallel, or progressive and parallel manner, and each embodiment focuses on the differences from other embodiments, and the same or similar parts between the embodiments can be referred to each other. The embodiments provided in the embodiments of this application can be combined with each other if there is no contradiction.

[0159] It should be noted that in the description of the present application, it should be understood that the description of the drawings and embodiments is illustrative rather than restrictive. The same reference numerals throughout the embodiments of the specification identify the same structure. In addition, for the sake of understanding and ease of description, the drawings may exaggerate the thickness of some layers, films, panels, regions, etc. It is also understood that when an element such as a layer, film, region, or substrate is referred to as "on" another element, the element may be directly on the other element or there may be an intermediate element. In addition, "on" refers to positioning an element on or below another element, but does not essentially refer to positioning on the upper side of another element according to the direction of gravity.

[0160] The terms "upper", "lower", "top", "bottom", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. When a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centrally arranged component at the same time.

[0161] It should also be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprises", "comprising" or any other variants thereof are intended to cover non-exclusive inclusion, so that an article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such article or device. In the absence of further restrictions, the elements defined by the sentence "comprising a ..." do not exclude the existence of other identical elements in the article or device including the above elements.

[0162] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An antenna device, comprising: Antenna ground; at least one antenna, the antenna being capable of coupling with the antenna ground to utilize at least a portion of the antenna ground to transmit and receive wireless signals; The control component is capable of changing the surface current distribution of the antenna ground to adjust the radiation field pattern of the target antenna in the at least one antenna.

2. The antenna device according to claim 1, wherein: The control assembly includes at least one adjustment element capable of having different connection states with the antenna ground; Wherein, different connection states between the target adjustment element in the at least one adjustment element and the antenna ground result in different surface current distributions of the antenna ground, so that the target antenna has different radiation field patterns.

3. The antenna device according to claim 2, wherein: The adjusting element comprises a radiation branch which is independently arranged from the antenna ground, and the radiation branch can have different first connection states and second connection states with the antenna ground; In the first connection state, the radiation branch is disconnected from the antenna ground, the surface of the antenna ground has a first current distribution, and the target antenna has a first radiation pattern; In the second connection state, the radiation branch is electrically connected to the antenna ground, and the surface of the antenna ground has a second current distribution, which is different from the first current distribution, so that the target antenna has a second radiation pattern different from the first radiation pattern.

4. The antenna device according to claim 2, wherein: The adjusting element includes a radiation slot opened on the antenna ground, and the radiation slot includes an opening located on one side of the antenna ground, so that a part of the antenna ground serves as a radiation branch; the radiation slot and the antenna ground can have a first connection state and a second connection state; In the first connection state, the surface of the antenna ground has a first current distribution, and the target antenna has a first radiation pattern; In the second connection state, the surface of the antenna ground has a second current distribution, which is different from the first current distribution, so that the target antenna has a second radiation pattern different from the first radiation pattern.

5. The antenna device according to claim 2, wherein the distance between the target adjustment element and the target antenna is L, ,in, is the central wavelength of the operating frequency of the target antenna; And / or, the target adjustment element at least includes a radiation branch arranged toward the target antenna, and a size of the radiation branch is related to a central wavelength of an operating frequency of the target antenna.

6. The antenna device according to claim 2, wherein: The target antenna includes a first antenna; the target adjustment element includes: a first radiation branch disposed toward the first antenna; or, The target antenna includes a first antenna and a second antenna arranged at intervals, and the target adjustment element includes: a first radiation branch arranged toward the first antenna and a second radiation branch arranged toward the second antenna; The size of the first radiation branch is related to the central wavelength of the first antenna; the size of the second radiation branch is related to the central wavelength of the second antenna.

7. The antenna device according to claim 2, wherein: The target adjustment element includes a third radiating branch disposed toward the target antenna; The third radiation branch includes a first branch and a second branch, the size of the first branch is related to the center wavelength of the first communication frequency band of the target antenna, and the size of the second branch is related to the center wavelength of the second communication frequency band of the target antenna; The first branch and the second branch are connected to the antenna ground based on the same switch element, or the first branch and the second branch are connected to the antenna ground through one of the switch elements respectively.

8. The antenna device according to claim 1, wherein: The antenna ground includes at least two sub-antenna grounds, and the control component includes a connecting device arranged between the at least two sub-antenna grounds. The connecting device can make the sub-antenna grounds have a connected state or an isolated state to change the surface current distribution of the antenna ground so that the target antenna has a different radiation field pattern.

9. An electronic device, comprising: at least one metal housing, the metal housing comprising an antenna ground; at least one antenna, the antenna being capable of coupling with the antenna ground to utilize at least a portion of the antenna ground to transmit and receive wireless signals; The control component located in the metal shell can change the surface current distribution of the antenna ground to adjust the radiation field pattern of the target antenna in the at least one antenna.

10. The electronic device according to claim 9, wherein the control component comprises: at least one adjustment element capable of having different connection states with the antenna ground; Wherein, different connection states between the target adjustment element in the at least one adjustment element and the antenna ground result in different surface current distributions of the antenna ground, so that the target antenna has different radiation patterns; and / or, The control component can also adjust the connection state between the target adjustment element in the at least one adjustment element and the antenna ground according to the operating state information of the electronic device to change the radiation field pattern of the target antenna.

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