Antenna device and electronic equipment

Abstract

The invention provides an antenna device and electronic equipment, the antenna device comprises a first radiator, a first feeding point, a first grounding structure, a second radiator, a second feeding point and a second grounding structure, the first feeding point is electrically connected with a first end of the first radiator, the first grounding structure is electrically connected with a second end of the first radiator, and the second feeding point is electrically connected with a second end of the second radiator. The second feeding point is electrically connected with the first end of the second radiating body, the second grounding structure is electrically connected with the second end of the second radiating body, and the two ends of the connecting structure are electrically connected with the second end of the first radiating body and the third end of the second radiating body respectively, so that a decoupling path is formed between the first radiating body and the second radiating body. According to the antenna device, current coupling between the first radiator and the second radiator can be reduced, so that the isolation between the first radiator and the second radiator is improved.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of communication technology, and in particular, to an antenna device and an electronic device. Background Art

[0002] An antenna is a device used to send or receive radio waves. It is a device that transmits radio waves from devices such as cables, televisions, radios, radios, mobile phones, etc. into the air or from the air to the device.

[0003] With the continuous development of communication technology, whether it is the wireless access point (AP) of the wireless network (WLAN) or the 5G base station, in the context of the introduction of 6G frequency band by WiFi7 and the co-construction and sharing of multiple operators and multiple frequency bands by 5G, the number of radio frequency channels (corresponding to the number of antennas) in electronic devices has gradually increased. The increase in the number of antennas will make the layout between the antennas inside the electronic equipment difficult, which is mainly reflected in the deterioration of the isolation index and the radiation pattern index. In order to optimize the isolation and radiation pattern indicators, the antennas need to be spaced farther apart.

[0004] However, increasing the interval between antennas will increase the size of the electronic device, making it difficult for the electronic device to meet the demand for miniaturization. Summary of the invention

[0005] The embodiments of the present application provide an antenna device and an electronic device, which can offset electromagnetic waves in a spatial coupling path, so that two radiators that are close to each other have a higher degree of isolation, thereby facilitating the miniaturization of electronic devices.

[0006] The embodiments of the present application provide the following technical solutions to solve the above technical problems:

[0007] An embodiment of the present application provides an antenna device, including:

[0008] a first radiator, the first radiator having a first end and a second end;

[0009] a first feeding point and a first grounding structure, wherein the first feeding point is electrically connected to a first end of the first radiator, and the first grounding structure is electrically connected to a second end of the first radiator;

[0010] a second radiator, the second radiator having a third end and a fourth end;

[0011] a second feeding point and a second grounding structure, wherein the second feeding point is electrically connected to the fourth end of the second radiator, and the second grounding structure is electrically connected to the third end of the second radiator;

[0012] A connection structure, wherein two ends of the connection structure are electrically connected to the second end of the first radiator and the third end of the second radiator respectively, so as to form a decoupling path between the first radiator and the second radiator.

[0013] Beneficial effects of the embodiments of the present application: The antenna device provided in the embodiments of the present application includes a first radiator, a first feeding point and a first grounding structure, and a second radiator, a second feeding point and a second grounding structure, the first feeding point is electrically connected to the first end of the first radiator, the first grounding structure is electrically connected to the second end of the first radiator, the second feeding point is electrically connected to the first end of the second radiator, and the second grounding structure is electrically connected to the second end of the second radiator. The first radiator is coupled to the second radiator by indirect coupling to form a first coupling current, and the second radiator is coupled to the first radiator by indirect coupling to form a second coupling current. The above-mentioned first radiator is coupled to the second radiator by indirect coupling to form a path of the first coupling current, and the second radiator is coupled to the first radiator by indirect coupling to form a path of the second coupling current, which is defined as a spatial coupling path. In order to make the first radiator There is good isolation between the radiator and the second radiator. The antenna device provided in the embodiment of the present application electrically connects the connection structure between the second end of the first radiator and the third end of the second radiator to form a decoupling path between the first radiator and the second radiator, so that a first reverse coupling current that is opposite to the first coupling current is generated in the first radiator, and the first reverse coupling current is the current coupled to the first radiator by the second radiator through the decoupling path. A second reverse coupling current that is opposite to the second coupling current is generated in the second radiator, and the second reverse coupling current is the current coupled to the second radiator by the first radiator through the decoupling path. Therefore, the first reverse coupling current and the first coupling current are at least partially offset, and the second reverse coupling current and the second coupling current are at least partially offset, thereby reducing the current coupling between the first radiator and the second radiator, and thereby improving the isolation between the first radiator and the second radiator.

[0014] In a possible implementation manner, the first radiator includes a first horizontal radiating branch and a first vertical radiating branch, and the first vertical radiating branch is electrically connected to a first end of the first horizontal radiating branch;

[0015] The first feeding point is electrically connected to the first vertical radiation branch;

[0016] The second end of the first radiator is the second end of the first horizontal radiation branch, and the second end of the first horizontal radiation branch and the first end of the first horizontal radiation branch are two opposite ends of the first horizontal radiation branch.

[0017] In a possible implementation manner, the second radiator includes a second horizontal radiating branch and a second vertical radiating branch, and the second vertical radiating branch is electrically connected to the first end of the second horizontal radiating branch;

[0018] The second feeding point is electrically connected to the second vertical radiation branch;

[0019] The third end of the second radiator is the second end of the second horizontal radiation branch, and the second end of the second horizontal radiation branch and the first end of the second horizontal radiation branch are two opposite ends of the second horizontal radiation branch.

[0020] In a possible implementation manner, the first vertical radiation branch includes a first connection portion and a first extension portion connected to each other, the first connection portion is electrically connected to the first horizontal radiation branch, and in the direction of a connection line between the first connection portion and the first horizontal radiation branch, the first extension portion extends in a direction away from the first connection portion;

[0021] The second vertical radiating branch node includes a second connecting portion and a second extending portion connected to each other, the second connecting portion is connected to the second horizontal radiating branch node, and the second extending portion extends in a direction away from the second connecting portion in the direction of a connecting line between the second connecting portion and the second horizontal radiating branch node.

[0022] In a possible implementation manner, the antenna device further includes a first floor and a second floor, and the first floor and the second floor each have at least one fixing point;

[0023] The first grounding structure is a plate-shaped structure, one end of the first grounding structure is electrically connected to the second end of the first horizontal radiation branch, and the other end of the first grounding structure is electrically connected to the first floor;

[0024] The second grounding structure is a plate-shaped structure, one end of the second grounding structure is electrically connected to the second end of the second horizontal radiation branch, and the other end of the second grounding structure is electrically connected to the second ground plane.

[0025] In a possible implementation, the first radiator is located on one side of the first floor, the first grounding structure is located between the first floor and the first horizontal radiating branch, and two ends of the first grounding structure are electrically connected to the first floor and the first horizontal radiating branch, respectively, one end of the first vertical radiating branch is electrically connected to the first horizontal radiating branch, the other end of the first vertical radiating branch extends toward the first floor, and an end of the first vertical radiating branch extending toward the first floor has a spacing from the first floor;

[0026] The overall structure after the second radiator and the second floor are connected is the same as the overall structure after the first radiator and the first floor are connected.

[0027] In a possible implementation, the antenna device further includes a first feeder and a second feeder, the first feeder is connected to the first feeding point, and a portion of the first feeder is fixed to the first floor, the second feeder is connected to the second feeding point, and a portion of the first feeder is fixed to the first floor.

[0028] In a possible implementation manner, the antenna device further includes a connecting plate, and the connecting plate connects the first floor panel and the second floor panel.

[0029] In a possible implementation manner, the first floor and the second floor each have two fixing ears, the connecting plate has one fixing ear, and any of the fixing ears is provided with one fixing point;

[0030] One of the fixing ears of the first floor, the fixing ear of the connecting plate and the fixing ear of the second floor are located on the same side of the integral structure formed by the first floor, the connecting plate and the second floor, and are combined with the first floor, the connecting plate and the second floor to form a "mountain" shaped structure;

[0031] The other fixing ear of the first floor panel and the other fixing ear of the second floor panel are respectively located at two ends of the fixing ears of the connecting plate and on different sides from the fixing ears of the connecting plate.

[0032] In a possible implementation manner, the first floor, the connecting plate and the second floor are an integrally formed structure, and the structure is a grounding structure;

[0033] The first radiator, the first grounding structure, the connecting structure, the second radiator and the second grounding structure are an integrally formed structure, which is a radiating structure;

[0034] The overall cross-sectional height formed by the ground structure and the radiation structure is 6 mm to 12 mm.

[0035] In a possible implementation manner, the second end of the first horizontal radiation branch is opposite to the second end of the second horizontal radiation branch;

[0036] In a direction parallel to the second end of the first horizontal radiation branch, the width of the connection structure, the width of the first horizontal radiation branch, and the width of the second horizontal radiation branch are the same.

[0037] In a possible implementation manner, the second end of the first radiator is opposite to the third end of the second radiator;

[0038] The connection structure is a T-shaped structure having a transverse connection portion and a longitudinal connection portion connected to the middle of the transverse connection portion, and two ends of the transverse connection portion are electrically connected to the second end of the first radiator and the third end of the second radiator respectively.

[0039] An embodiment of the present application further provides an electronic device, which includes the antenna device described in any of the above solutions.

[0040] The beneficial effects of the electronic device provided by the embodiment of the present application are the same as the beneficial effects of the above-mentioned antenna device, which will not be repeated here.

[0041] In addition to the technical problems solved by the present application, the technical features that constitute the technical solutions, and the beneficial effects brought about by the technical features of these technical solutions described above, other technical problems that can be solved by the antenna device and electronic device provided by the present application, other technical features included in the technical solutions, and the beneficial effects brought about by these technical features will be further described in detail in the specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments of the present application or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only part of the embodiments of the present application. These drawings and text descriptions are not intended to limit the scope of the concept of the present application in any way, but to illustrate the concept of the present application for those skilled in the art by referring to specific embodiments. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0043] Figure 1 This is a schematic diagram of a first antenna device according to an embodiment of the present application;

[0044] Figure 2 This is a schematic diagram of a second antenna device according to an embodiment of the present application;

[0045] Figure 3 This is a schematic diagram of a third antenna device according to an embodiment of the present application;

[0046] Figure 4 A schematic diagram of a coupling path of an antenna device according to an embodiment of the present application;

[0047] Figure 5 It is a spatial coupling path of the electric field between the first radiator and the second radiator in the embodiment of the present application;

[0048] Figure 6 A decoupling path for the electric field between the first radiator and the second radiator in the embodiment of the present application;

[0049] Figure 7 This is a standing wave curve diagram of the first antenna device according to an embodiment of the present application;

[0050] Figure 8 This is an isolation curve diagram of the first antenna device according to an embodiment of the present application;

[0051] Fig. 9 This is the horizontal plane radiation pattern of the first antenna device according to the embodiment of the present application.

[0052] Description of reference numerals:

[0053] 100. The first radiator;

[0054] 110, first horizontal radiation branch; 120, first vertical radiation branch; 130, first grounding structure; 140, first feeder line;

[0055] 121. first connecting portion; 122. first extending portion;

[0056] 200, second radiator;

[0057] 210, second horizontal radiation branch; 220, second vertical radiation branch; 230, second grounding structure; 240, second feeder;

[0058] 221. second connecting portion; 222. second extending portion;

[0059] 300, connection structure;

[0060] 400, first floor;

[0061] 410, fixed ears;

[0062] 500, second floor;

[0063] 600. Connecting plate. DETAILED DESCRIPTION

[0064] With the continuous development of communication technology, whether it is the wireless access point (English: Access Point, abbreviated as AP) of the wireless network (WLAN) or the 5G base station, in the context of the introduction of 6G frequency bands by WiFi7 and the co-construction and sharing of multiple operators and multiple frequency bands by 5G, the number of radio frequency channels (corresponding to the number of antennas) in electronic devices has gradually increased. The increase in the number of antennas will make the layout between the antennas inside the electronic equipment difficult, which is mainly reflected in the deterioration of the isolation index and the directional pattern index. In order to optimize the isolation and directional pattern indicators, the antennas need to be spaced farther apart, which is contrary to the current trend of miniaturization of equipment. In related technologies, polarization isolation is usually used to feed two radio frequencies into an antenna body at the same time. However, although the above method solves the problem of coexistence of two antennas in a single frequency band, the problem caused by this cross-polarization is that the horizontal omnidirectional radiation pattern is poor, and at the same time, the profile is high, which is not conducive to the application in WLAN and small base stations and other mounted products.

[0065] In view of this, the embodiment of the present application constructs a coupling path between two radiators that is opposite to the spatial coupling path, thereby achieving electromagnetic wave energy cancellation, so that there is a higher isolation and better directional pattern indicators between the two radiators that are close to each other, which is conducive to the miniaturization of electronic equipment.

[0066] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0067] like Figure 1 As shown, the antenna device provided in the embodiment of the present application includes a first radiator 100, a first feeding point and a first grounding structure 130, and a second radiator 200, a second feeding point and a second grounding structure 230. The first radiator 100 has a first end and a second end, the first feeding point is electrically connected to the first end of the first radiator 100, and the first grounding structure 130 is electrically connected to the second end of the first radiator; the second radiator 200 has a third end and a fourth end, the second feeding point is electrically connected to the fourth end of the second radiator 200, and the second grounding structure 230 is electrically connected to the third end of the second radiator.

[0068] like Figure 4As shown, based on the fact that the first radiator 100 will couple to the second radiator 200 through indirect coupling to form a first coupling current, and the second radiator 200 will couple to the first radiator 100 through indirect coupling to form a second coupling current, in order to ensure that the first radiator 100 and the second radiator 200 have better isolation, the antenna device provided in the embodiment of the present application electrically connects the connecting structure 300 between the second end of the first radiator and the third end of the second radiator to form a decoupling path between the first radiator 100 and the second radiator 200. That is to say, the antenna device provided in the embodiment of the present application also includes a connecting structure 300, and the two ends of the connecting structure 300 are respectively electrically connected to the second end of the first radiator and the third end of the second radiator to form a decoupling path between the first radiator 100 and the second radiator 200. The decoupling path can generate a first reverse coupling current in the first radiator 100 that is in reverse phase with the first coupling current, and generate a second reverse coupling current in the second radiator 200 that is in reverse phase with the second coupling current, wherein the first reverse coupling current is a current coupled from the second radiator 200 to the first radiator 100 through the decoupling path, and the second reverse coupling current is a current coupled from the first radiator 100 to the second radiator 200 through the decoupling path, thereby, the first reverse coupling current at least partially offsets the first coupling current, and the second reverse coupling current at least partially offsets the second coupling current, thereby reducing the current coupling between the first radiator 100 and the second radiator 200, and thereby improving the isolation between the first radiator 100 and the second radiator 200.

[0069] like Figure 4 As shown, the first radiator 100 is coupled to the second radiator 200 by indirect coupling to form a path of the first coupling current, and the second radiator 200 is coupled to the first radiator 100 by indirect coupling to form a path of the second coupling current, which is defined as a spatial coupling path. The decoupling path is the decoupling path of the first radiator 100 and the second radiator 200.

[0070] It should be noted that the above-mentioned “indirect coupling” can be understood as two conductors being electrically connected in an air-separated / non-contact manner.

[0071] See also Figure 5 and Figure 6 , Figure 5 is the spatial coupling path of the electric field between the first radiator 100 and the second radiator 200 in the embodiment of the present application, Figure 6 It is the decoupling path of the electric field between the first radiator 100 and the second radiator 200 in the embodiment of the present application. Figure 5 Only a partial electric field flow diagram of the second radiator 200 coupling the second coupling current to the first radiator 100 through the spatial coupling path is shown. Figure 5and Figure 6 It can be seen that the second radiator 200 couples the second anti-phase coupling current which is anti-phase to the second coupling current to the first radiator 100 through the decoupling path.

[0072] Compared with setting a decoupling path at the circuit end, the antenna device provided in the embodiment of the present application sets a decoupling path between two radiators, which does not require modification of the RF circuit, can reduce the complexity of the circuit, and at the same time reduce the loss caused by circuit decoupling. In addition, the additional addition of circuit decoupling is effective in the direction Figure 1 Generally, the influence is large, and generally it is narrowband decoupling. The antenna device provided in the embodiment of the present application can be applicable to broadband decoupling, and has good isolation and good directional pattern indicators.

[0073] In addition, the decoupling path (connection structure 300) of the antenna device provided in the embodiment of the application is connected between two radiators and can participate in radiation in a small amount, so that it can play a role in adjusting the antenna impedance, and therefore it can play a role in fine-tuning the antenna bandwidth.

[0074] It is worth noting that the ends in the embodiments of the present application (for example, the first end, the second end, the third end, and the fourth end) cannot be narrowly understood as a point, or an edge line of an end, or an end face, and can also be considered as a section of a radiator close to the end. For example, the first end of the first radiator 100 can be considered as a section of a radiator within a first wavelength range of one eighth of the end edge of the first end, wherein the first wavelength can be a wavelength corresponding to the working frequency band of the antenna device, can be a wavelength corresponding to the center frequency of the working frequency band, or a wavelength corresponding to a resonance point.

[0075] In some embodiments of the present application, the first radiator 100 includes a first horizontal radiating branch 110 and a first vertical radiating branch 120, and the first vertical radiating branch 120 is electrically connected to the first end of the first horizontal radiating branch 110. The first feeding point is electrically connected to the first vertical radiating branch 120, the second end of the first radiator is the second end of the first horizontal radiating branch 110, and the second end of the first horizontal radiating branch 110 and the first end of the first horizontal radiating branch 110 are two opposite ends of the first horizontal radiating branch 110.

[0076] In the embodiment of the present application, the structure of the second radiator 200 is the same as that of the first radiator 100, that is, the second radiator 200 includes a second horizontal radiating branch 210 and a second vertical radiating branch 220, the second vertical radiating branch 220 is electrically connected to the first end of the second horizontal radiating branch 210, the second feeding point is electrically connected to the second vertical radiating branch 220, the third end of the second radiator is the second end of the second horizontal radiating branch 210, and the second end of the second horizontal radiating branch 210 and the first end of the second horizontal radiating branch 210 are two opposite ends of the second horizontal radiating branch 210.

[0077] The connection structure 300 in the embodiment of the present application connects the second end of the first horizontal radiation branch 110 and the second end of the second horizontal radiation branch 210, the second end of the first horizontal radiation branch 110 is connected to the first grounding structure 130, and is far away from the first vertical radiation branch 120 connected to the first feeding point, and the second end of the second horizontal radiation branch 210 is connected to the second grounding structure 230, and is far away from the second vertical radiation branch 220 connected to the second feeding point, that is, the connection structure 300 is connected to the area where the electromagnetic radiation of the first radiator 100 is weaker, and the area where the electromagnetic radiation of the second radiator 200 is weaker, thereby weakening the radiation amount of the connection structure 300, that is, the connection structure 300 participates in less radiation, and the connection structure 300 is connected to the second grounding structure 230. The connection structure 300 participates in a small amount of radiation, so that the connection structure 300 has a small influence on the spatial coupling path, thereby facilitating the debugging of the connection structure 300. That is, if the connection structure 300 wants to generate a decoupling path opposite to the spatial coupling path, it is necessary to analyze the spatial coupling path and adjust the parameters of the connection structure 300 according to the spatial coupling path (for example, adjusting the length of the connection structure 300) so that the connection structure 300 generates a decoupling path opposite to the spatial coupling path. The connection structure 300 participates in a small amount of radiation, so that when the connection structure 300 adjusts the parameters (for example, the length of the connection structure 300), the connection structure 300 has a small influence on the spatial coupling path, thereby facilitating the debugging of the connection structure 300. In addition, the connection structure 300 participates in a small amount of radiation, so that the connection structure 300 can be used to adjust the impedance of the first radiator 100 and the second radiator 200, and the parameters for adjusting the impedance of the first radiator 100 and the second radiator 200 are increased.

[0078] It is worth noting that the first vertical radiating branch 120 and the first horizontal radiating branch 110 cannot be narrowly understood as the first vertical radiating branch 120 and the first horizontal radiating branch 110 are perpendicular to each other, and it can also be considered that the first vertical radiating branch 120 and the first horizontal radiating branch 110 are nearly perpendicular to each other. For example, the angle between the first vertical radiating branch 120 and the first horizontal radiating branch 110 can range from 80° to 100°.

[0079] Please continue reading Figure 1The first vertical radiation branch 120 includes a first connection portion 121 and a first extension portion 122 connected to each other. The first connection portion 121 is electrically connected to the first horizontal radiation branch 110. In the direction of the connection line between the first connection portion 121 and the first horizontal radiation branch 110, the first extension portion 122 extends away from the first connection portion 121. The first feeding point is connected to the first connection portion 121. The first extension portion 122 is the main radiation arm of the first radiator 100, and the electromagnetic radiation at this location is relatively strong. The second vertical radiation branch 220 includes a second connection portion 221 and a second extension portion 222 connected to each other. The second connection portion 221 is connected to the second horizontal radiation branch 210. In the direction of the connection line between the second connection portion 221 and the second horizontal radiation branch 210, the second extension portion 222 extends away from the second connection portion 221. The second feeding point is connected to the second connection portion 221. The second extension portion 222 is the main radiation arm of the second radiator 200, and the electromagnetic radiation at this location is relatively strong. The first extension portion 122 serves as the main radiation area of ​​the first radiator 100, and the second extension portion 222 serves as the main radiation area of ​​the second radiator 200. The first extension portion 122 is located at an end of the first radiator 100 away from the second radiator 200, and the second extension portion 222 is located at an end of the second radiator 200 away from the first radiator 100. This arrangement makes the radiation intensity of the end of the first radiator 100 connected to the connection structure 300 and the radiation intensity of the end of the second radiator 200 connected to the connection structure 300 both relatively weak, thereby reducing the amount of radiation that the connection structure 300 participates in radiating, that is, the amount of radiation that the connection structure 300 participates in is relatively small, thereby facilitating the debugging of the connection structure 300.

[0080] In some embodiments of the present application, the second end of the first radiator is opposite to the third end of the second radiator, and the first extension portion 122 is opposite to the second extension portion 222, that is, the first extension portion 122 and the second extension portion 222 are located on the same side of the overall structure formed by sequentially connecting the first horizontal radiating branch 110, the connecting structure 300 and the second horizontal radiating branch 210.

[0081] Since the first extension portion 122 is the main radiation arm of the first radiator 100 and the electromagnetic radiation therein is relatively strong, and the second extension portion 222 is the main radiation arm of the second radiator 200 and the electromagnetic radiation therein is relatively strong, the distance between the first extension portion 122 and the second extension portion 222 determines the spatial coupling path between the first radiator 100 and the second radiator 200, that is, determines the electric field phase of the first radiator 100 coupled to the second radiator 200 along the spatial coupling path, and the electric field phase of the second radiator 200 coupled to the first radiator 100 along the spatial coupling path. Therefore, in the embodiment of the present application, the electric field phase of the spatial coupling path is adjusted by adjusting the distance between the first extension portion 122 and the second extension portion 222, as well as the length of the connecting structure 300, so that the spatial coupling paths of the antenna device at various frequency points are basically similar within a certain broadband frequency band (exemplarily, the frequency band is 5.13 GHz-7.41 GHz, and the first radiator 100 and the second radiator 200 are at the same frequency), thereby making the setting of the decoupling path applicable to an antenna device with a certain bandwidth. That is to say, in a certain broadband frequency band (exemplarily, the frequency band is 5.13 GHz-7.41 GHz, and the first radiator 100 and the second radiator 200 are of the same frequency), the distance between the first extension portion 122 and the second extension portion 222 of the antenna device can ensure that the first radiator 100 and the second radiator 200 have good isolation and good directivity indicators when the following conditions are met. The distance between the first extension portion 122 and the second extension portion 222 satisfies the condition that, in a certain broadband frequency band (exemplarily, the frequency band is 5.13 GHz-7.41 GHz, and the first radiator 100 and the second radiator 200 are of the same frequency), the electric field phase of the first radiator 100 coupled to the second radiator 200 along the spatial coupling path shows a nearly linear change with the change of the radiation frequency of the first radiator 100, and the electric field phase of the second radiator 200 coupled to the first radiator 100 along the spatial coupling path shows a nearly linear change with the change of the radiation frequency of the second radiator 200.

[0082] In order to facilitate the adjustment of the antenna device, when the antenna device is adjusted, the distance between the first extension portion 122 and the second extension portion 222 is increased or decreased by adjusting the length of the connection structure 300. That is, the structure of the first radiator 100 and the second radiator 200 has been set, and the spacing distance between the first radiator 100 and the second radiator 200 is the length of the connection structure 300, that is, the length of the connection structure becomes longer, and the distance between the first extension portion 122 and the second extension portion 222 becomes larger. Exemplarily, the length of the connection structure is one-fourth of the wavelength of the radiation signal of the first radiator, and the second radiator has the same frequency as the first radiator. Assuming that the distance between the first extension portion 122 and the second extension portion 222 is x at this time, when the length of the connection structure is adjusted to half of the wavelength of the radiation signal of the first radiator, the distance between the first extension portion 122 and the second extension portion 222 is x plus one-fourth of the wavelength of the radiation signal of the first radiator.

[0083] Exemplarily, the first radiator 100 and the second radiator 200 are of the same frequency. In the frequency band of 5.13 GHz-7.41 GHz, when adjusting the distance between the first extension portion 122 and the second extension portion 222, the length of the connecting structure 300 is usually first set to one quarter of the wavelength of the signal radiated by the first radiator, and then the length of the connecting structure 300 is adjusted (lengthened or shortened) so that the antenna device is in the frequency band of 5.13 GHz-7.41 GHz. The spatial coupling paths of the first radiator 100 at each frequency point are basically similar, and the spatial coupling paths of the second radiator 200 at each frequency point are basically similar.

[0084] Please continue reading Figure 1 , the antenna device also includes a first floor 400 and a second floor 500, each of which has at least one fixing point, and the fixing point is used to fix the first floor 400 and the second floor 500. In the embodiment of the present application, the first floor 400 and the second floor 500 are both floors, which can generally refer to at least a part of any grounding layer, or grounding plate, or grounding metal layer, etc. in an electronic device (such as a 5G small base station), or at least a part of any combination of any of the above grounding layers, or grounding plates, or grounding components, etc. The floor can be used for grounding components in the electronic device. In one embodiment, the circuit board can be a printed circuit board (abbreviated as PCB), such as an 8-layer, 10-layer or 12-14-layer board with 8, 10, 12, 13 or 14 layers of conductive material, or an element separated and electrically insulated by a dielectric layer or insulating layer such as glass fiber, polymer, etc. In one embodiment, the circuit board includes a dielectric substrate, a grounding layer and a wiring layer, and the wiring layer and the grounding layer are electrically connected through vias.

[0085] Any of the above-mentioned grounding layers, grounding plates, or grounding metal layers are made of conductive materials. In one embodiment, the conductive material can be any of the following materials: copper, aluminum, stainless steel, brass and their alloys, copper foil on an insulating substrate, aluminum foil on an insulating substrate, gold foil on an insulating substrate, silver-plated copper, silver-plated copper foil on an insulating substrate, silver foil and tin-plated copper on an insulating substrate, cloth impregnated with graphite powder, graphite-coated substrates, copper-plated substrates, brass-plated substrates, and aluminum-plated substrates. It will be appreciated by those skilled in the art that the grounding layer / grounding plate / grounding metal layer can also be made of other conductive materials.

[0086] In the embodiment of the present application, the first grounding structure 130 is a plate-shaped structure, one end of the first grounding structure 130 is electrically connected to the second end of the first horizontal radiation branch 110, and the other end is electrically connected to the first floor 400. The first grounding structure 130 is used for grounding the first radiator 100 on the one hand, and for adjusting the impedance of the first radiator 100 on the other hand. Similarly, the second grounding structure 230 is a plate-shaped structure, one end of the second grounding structure 230 is electrically connected to the second end of the second horizontal radiation branch 210, and the other end is electrically connected to the second floor 500. The second grounding structure 230 is used for grounding the second radiator 200 on the one hand, and for adjusting the impedance of the second radiator 200 on the other hand.

[0087] Exemplarily, a structure after the first radiator 100 is connected to the first floor 400 is as follows: the first radiator 100 is located on one side of the first floor 400, the first grounding structure 130 is located between the first floor 400 and the first horizontal radiating branch 110, and the two ends of the first grounding structure 130 are electrically connected to the first floor 400 and the first horizontal radiating branch 110 respectively. One end of the first vertical radiating branch 120 is electrically connected to the first horizontal radiating branch 110, and the other end of the first vertical radiating branch 120 extends in a direction close to the first floor 400, and one end of the first vertical radiating branch 120 extending in a direction close to the first floor 400 is separated from the first floor 400 by a space. That is, in addition to the above-mentioned functions of grounding the second radiator 200 on the one hand and adjusting the impedance of the second radiator 200 on the other hand, the first grounding structure 130 also supports the first radiator 100, so that the first radiator 100 is suspended. In addition, the first vertical radiation branches 120 are arranged to extend in a direction close to the first floor 400 , so that the cross-sectional height of the first radiator 100 is relatively small.

[0088] For example, Figure 1As shown, the first radiator 100 is located on the upper side of the first floor 400, the first horizontal radiation branch 110 is parallel to the first floor 400, and the two ends of the first grounding structure 130 are respectively electrically connected to the edge of the first floor 400 and the edge of the first horizontal radiation branch 110. Of course, the first radiator 100 is located on the upper side of the first floor 400 when the first floor 400 is placed horizontally. If the first floor 400 is set vertically, the first radiator 100 can be located on the left or right side of the first floor 400, or when the first floor 400 is set tilted, the first radiator 100 can be located at the upper part in a direction perpendicular to the tilt direction of the first floor 400.

[0089] In the embodiment of the present application, in order to facilitate the production and processing of the antenna device and to increase the aesthetics of the antenna device, the overall structure after the second radiator 200 is connected to the second floor 500 is the same as the overall structure after the first radiator 100 is connected to the first floor 400. That is to say, the structure of the second radiator 200 is the same as that of the first radiator 100, the structure of the second floor 500 is the same as that of the first floor 400, and the connection position relationship between the second radiator 200 and the second floor 500 is also the same as the connection position relationship between the first radiator 100 and the first floor 400. It is worth noting that the same structure here means that the structure, size and shape are the same. That is to say, the overall structure after the second radiator 200 is connected to the second floor 500 is a symmetrical structure of the overall structure after the first radiator 100 is connected to the first floor 400.

[0090] Please continue reading Figure 1 The antenna device further includes a first feeder 140 and a second feeder. The first feeder 140 is connected to the first feeding point, and a portion of the first feeder 140 is fixed to the first floor 400. The current wave or electromagnetic wave transmitted by the first feeder 140 is input from the first feeding point to the first radiator 100. The second feeder 240 is connected to the second feeding point, and a portion of the first feeder 240 is fixed to the first floor 400. The current wave or electromagnetic wave transmitted by the second feeder 240 is input from the second feeding point to the second radiator 200.

[0091] In order to strengthen the structure of the first floor 400 and the second floor 500, the antenna device further includes a connecting plate 600, which connects the first floor 400 and the second floor 500. This arrangement enables the first floor 400 and the second floor 500 to have a higher strength and can more stably support the first radiator 100 and the second radiator 200. Of course, in some embodiments of the present application, based on the fact that the first floor 400 and the second floor 500 have no effect on the radiation of the antenna device, the connecting plate 600 may not be arranged between the first floor 400 and the second floor 500, which is not specifically limited here.

[0092] Optionally, in order to facilitate the processing of the antenna device, the first floor 400, the connecting plate 600 and the second floor 500 are an integrally formed structure, which is a grounding structure.

[0093] Please continue reading Figure 1 , exemplarily, the first floor 400 and the second floor 500 each have two fixing ears 410, the connecting plate 600 has one fixing ear 410, and each fixing ear 410 is provided with a fixing point, and one of the fixing ears 410 of the first floor 400, the fixing ear 410 of the connecting plate 600, and the fixing ear 410 of the second floor 500 are located on the same side of the overall structure formed by the first floor 400, the connecting plate 600, and the second floor 500, and are combined with the first floor 400, the connecting plate 600, and the second floor 500 to form a "mountain" shaped structure. Another fixing ear 410 of the first floor 400 and another fixing ear 410 of the second floor 500 are respectively located at both ends of the fixing ear 410 of the connecting plate 600, and on different sides from the fixing ear 410 of the connecting plate 600. That is to say, the overall structure formed by the first floor 400, the connecting plate 600 and the second floor 500 has five fixing ears 410, three of which are located on one side of the overall structure formed by the first floor 400, the connecting plate 600 and the second floor 500, and the other two are located on the other side of the overall structure formed by the first floor 400, the connecting plate 600 and the second floor 500, and the five fixing ears 410 are cross-arranged. This arrangement can increase the stability of the overall structure formed by the first floor 400, the connecting plate 600 and the second floor 500 when it is fixed.

[0094] In some embodiments of the present application, in order to facilitate the production and processing of the antenna device, the first radiator 100, the first grounding structure 130, the connecting structure 300, the second radiator 200 and the second grounding structure 230 are an integrated structure, which is a radiation structure. This arrangement not only facilitates the production and processing of the antenna device, but also makes the addition of the connecting structure 300 have a smaller effect on the impedance of the first radiator 100 and the second radiator 200.

[0095] In some embodiments of the present application, the cross-sectional height of the whole formed by the grounding structure and the radiating structure is 6mm-12mm. The cross-sectional height here refers to the height of the whole structure formed by the grounding structure and the radiating structure in a direction perpendicular to the first floor when the whole structure is cut by a plane perpendicular to the first floor. Exemplarily, the cross-sectional height of the whole structure formed by the grounding structure and the radiating structure is 8mm, thereby enabling the antenna device provided in the embodiment of the present application to be adapted to wall-mounted products, and the decoupling path provided in the antenna device provided in the embodiment of the present application can be suitable for the decoupling of low-profile wire devices.

[0096] In the embodiment of the present application, the structure of the connection structure 300 can be diversified, as long as it can connect the second end of the first radiator and the third end of the second radiator 200. For example, the structure of the connection structure 300 can be in the following three forms:

[0097] First, see Figure 1 , the second end of the first horizontal radiation branch 110 is opposite to the second end of the second horizontal radiation branch 210, and in the direction parallel to the second end of the first horizontal radiation branch 110, the width of the connection structure 300, the width of the first horizontal radiation branch 110, and the width of the second horizontal radiation branch 210 are the same. In other words, the connection structure 300, the first horizontal radiation branch 110, and the second horizontal radiation branch 210 are of equal width. This arrangement can make the structure of the antenna device more stable and easy to process, so that the design of the antenna device tends to be simple.

[0098] For the second one, see Figure 2 , the second end of the first radiator is opposite to the third end of the second radiator, the connection structure 300 is a long strip structure, one end of the connection structure 300 is electrically connected to the second end of part of the first horizontal radiating branch 110, and the other end of the connection structure 300 is connected to the second end of part of the second horizontal radiating branch 210. That is to say, when the first horizontal radiating branch 110, the connection structure 300 and the second horizontal radiating branch 210 are an integrally formed structure, there is a gap in the area of ​​the connection structure 300, and this setting can reduce the overall weight of the antenna device. In the embodiment of the present application, the connection structure 300 can form a decoupling path as long as it connects the second end of the first radiator and the third end of the second radiator 200.

[0099] For the third type, see Figure 3 , the second end of the first radiator is opposite to the third end of the second radiator, the connection structure 300 is a T-shaped structure, the T-shaped structure has a transverse connection part, and a longitudinal connection part connected to the middle of the transverse connection part, and the two ends of the transverse connection part are electrically connected to the second end of the first radiator and the third end of the second radiator respectively. In other words, the connection structure 300 forms a multi-mode resonator structure, which can increase the debugging parameters of the connection structure 300 during debugging, so that the debugging parameters of the connection structure 300 are not limited to the length of the connection structure 300, thereby making the antenna device have more adjustable parameters during debugging.

[0100] The above three connection structures 300 are merely exemplary structures, and they may also be other structures, which are not listed here one by one.

[0101] Exemplarily, the antenna device provided in the embodiment of the present application can be applied to a low-profile broadband same-frequency dual-feed PIFA (Planar Inverted F-shaped Antenna) antenna. Exemplarily, the frequency range is 5.13GHz-7.41GHz, which can cover the full frequency bands of 5G and 6G defined by wifi7. At the same time, good isolation is achieved in the full frequency band, thereby ensuring the MIMO effect. At the same time, it has a simple structure, low cost, saves equipment volume, and has a uniform radiation direction in the upper half of the space, which overcomes the coverage problem when the antenna is close.

[0102] Exemplarily, the connection structure 300 of the embodiment of the present application is in the first structure (i.e. Figure 1 Take the structure shown in the figure as an example to draw the standing wave curve, isolation curve and directivity diagram. The results are as follows Figure 7 , Figure 8 and Fig. 9 As shown, in Figure 1 In the structure shown, the length of the connection structure is 11 mm (approximately one quarter of the wavelength of the center frequency), and the distance between the first extension portion 122 and the second extension portion 222 is 39.4 mm.

[0103] Figure 7 This is a standing wave curve diagram of the first antenna device according to the embodiment of the present application. Figure 8 is an isolation curve diagram of the first antenna device according to the embodiment of the present application, Figure 7 and Figure 8 It can be seen that when the return loss is below -10.12dB and the frequency range is 5.13GHz-7.41GHz, that is, when the absolute bandwidth is 2.28GHz, the isolation of the antenna device provided in the embodiment of the present application is lower than 23dB, indicating that the antenna device has good isolation and can meet the application requirements, indicating that the decoupling path provided in the embodiment of the present application can offset the current coupled into the antenna through the spatial coupling path.

[0104] Fig. 9 is the horizontal plane radiation pattern of the first antenna device in the embodiment of the present application, Fig. 9 It can be seen that the antenna device provided in the embodiment of the present application has good directivity pattern indicators and can meet the application requirements, which means that the decoupling path provided in the embodiment of the present application can offset the current coupled into the antenna through the spatial coupling path.

[0105] An embodiment of the present application further provides an electronic device, which includes the antenna device of any of the above solutions.

[0106] Among them, the terms "upper" and "lower" are used to describe the relative position relationship of each structure in the accompanying drawings, which is only for the convenience of description and is not used to limit the scope of implementation of the present application. Changes or adjustments to their relative relationships should also be regarded as the scope of implementation of the present application without substantially changing the technical content.

[0107] It should be noted that: in this application, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0108] In addition, in this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0109] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0110] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. An antenna device, characterized in that: include: a first radiator, the first radiator having a first end and a second end; a first feeding point and a first grounding structure, wherein the first feeding point is electrically connected to a first end of the first radiator, and the first grounding structure is electrically connected to a second end of the first radiator; a second radiator, the second radiator having a third end and a fourth end; a second feeding point and a second grounding structure, wherein the second feeding point is electrically connected to the fourth end of the second radiator, and the second grounding structure is electrically connected to the third end of the second radiator; A connection structure, wherein two ends of the connection structure are electrically connected to the second end of the first radiator and the third end of the second radiator respectively, so as to form a decoupling path between the first radiator and the second radiator.

2. The antenna device according to claim 1, characterized in that The first radiator comprises a first horizontal radiating branch and a first vertical radiating branch, wherein the first vertical radiating branch is electrically connected to a first end of the first horizontal radiating branch; The first feeding point is electrically connected to the first vertical radiation branch; The second end of the first radiator is the second end of the first horizontal radiation branch, and the second end of the first horizontal radiation branch and the first end of the first horizontal radiation branch are two opposite ends of the first horizontal radiation branch.

3. The antenna device according to claim 2, characterized in that The second radiator comprises a second horizontal radiating branch and a second vertical radiating branch, and the second vertical radiating branch is electrically connected to the first end of the second horizontal radiating branch; The second feeding point is electrically connected to the second vertical radiation branch; The third end of the second radiator is the second end of the second horizontal radiation branch, and the second end of the second horizontal radiation branch and the first end of the second horizontal radiation branch are two opposite ends of the second horizontal radiation branch.

4. The antenna device according to claim 3, characterized in that: The first vertical radiation branch node comprises a first connection portion and a first extension portion connected to each other, the first connection portion is electrically connected to the first horizontal radiation branch node, and in the direction of the connection line between the first connection portion and the first horizontal radiation branch node, the first extension portion extends in a direction away from the first connection portion; The second vertical radiating branch node includes a second connecting portion and a second extending portion connected to each other, the second connecting portion is connected to the second horizontal radiating branch node, and the second extending portion extends in a direction away from the second connecting portion in the direction of a connecting line between the second connecting portion and the second horizontal radiating branch node.

5. The antenna device according to claim 3, characterized in that: The antenna device further comprises a first floor panel and a second floor panel, wherein the first floor panel and the second floor panel each have at least one fixing point; The first grounding structure is a plate-shaped structure, one end of the first grounding structure is electrically connected to the second end of the first horizontal radiation branch, and the other end of the first grounding structure is electrically connected to the first floor; The second grounding structure is a plate-shaped structure, one end of the second grounding structure is electrically connected to the second end of the second horizontal radiation branch, and the other end of the second grounding structure is electrically connected to the second ground plane.

6. The antenna device according to claim 5, characterized in that The first radiator is located on one side of the first floor, the first grounding structure is located between the first floor and the first horizontal radiating branch, and two ends of the first grounding structure are electrically connected to the first floor and the first horizontal radiating branch, respectively, one end of the first vertical radiating branch is electrically connected to the first horizontal radiating branch, the other end of the first vertical radiating branch extends in a direction close to the first floor, and an end of the first vertical radiating branch extending in a direction close to the first floor has a spacing space from the first floor; The overall structure after the second radiator and the second floor are connected is the same as the overall structure after the first radiator and the first floor are connected.

7. The antenna device according to claim 6, characterized in that: The antenna device further includes a connection plate connecting the first floor panel and the second floor panel.

8. The antenna device according to claim 7, characterized in that: The first floor, the connecting plate and the second floor are an integrally formed structure, which is a grounding structure; The first radiator, the first grounding structure, the connecting structure, the second radiator and the second grounding structure are an integrally formed structure, which is a radiating structure; The overall cross-sectional height formed by the ground structure and the radiation structure is 6 mm to 12 mm.

9. The antenna device according to claim 3, characterized in that: The second end of the first horizontal radiating branch is opposite to the second end of the second horizontal radiating branch; In a direction parallel to the second end of the first horizontal radiation branch, the width of the connection structure, the width of the first horizontal radiation branch, and the width of the second horizontal radiation branch are the same.

10. The antenna device according to claim 1, characterized in that: The second end of the first radiator is opposite to the third end of the second radiator; The connection structure is a T-shaped structure having a transverse connection portion and a longitudinal connection portion connected to the middle of the transverse connection portion, and two ends of the transverse connection portion are electrically connected to the second end of the first radiator and the third end of the second radiator respectively.

11. An electronic device, characterized in that: The invention comprises the antenna device according to any one of claims 1 to 10.

Images