Antenna apparatus and electronic device

Abstract

Provided in the present application are an antenna apparatus and an electronic device. The antenna apparatus comprises a first radiator, a first feeding point, a first grounding structure, a second radiator, a second feeding point and a second grounding structure, wherein the first feeding point is electrically connected to a first end of the first radiator, the first grounding structure is electrically connected to a second end of the first radiator, the second feeding point is electrically connected to a first end of the second radiator, the second grounding structure is electrically connected to a second end of the second radiator, and two ends of a connecting structure are electrically connected to the second end of the first radiator and a third end of the second radiator, respectively, so that a decoupling path is formed between the first radiator and the second radiator.

Description

Antenna devices and electronic equipment

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to the Chinese patent application filed with the China Patent Office on July 19, 2023, with application number 202310889216.7 and invention name “Antenna device and electronic device”, the entire contents of which are incorporated by reference into this application. Technical Field

[0003] 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

[0004] 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.

[0005] With the continuous development of communication technology, whether it is the introduction of 6G frequency band in Wi-Fi 7 by wireless access points (APs) of wireless local area networks (WLANs), or the need for 5G base stations to achieve multi-operator and multi-band co-construction and sharing, the number of radio frequency channels in electronic devices has gradually increased, and the number of antennas corresponding to the radio frequency channels has also increased accordingly.

[0006] Summary of the Invention

[0007] The present application provides an antenna device and an electronic device.

[0008] In a first aspect, an embodiment of the present application provides an antenna device, including:

[0009] a first radiator having a first end and a second end;

[0010] 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;

[0011] a second radiator having a third end and a fourth end;

[0012] 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;

[0013] A connecting structure, wherein two ends of the connecting 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.

[0014] Beneficial effects of the embodiments of the present application: The antenna device provided by 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, so that 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. 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. 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, thereby improving the isolation between the first radiator and the second radiator.

[0015] 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 the first end of the first horizontal radiating branch;

[0016] The first feeding point is electrically connected to the first vertical radiation branch;

[0017] The second end of the first radiator is the second end of the first horizontal radiating branch, and the second end of the first horizontal radiating branch and the first end of the first horizontal radiating branch are two opposite ends of the first horizontal radiating branch.

[0018] In a possible implementation, 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;

[0019] The second feeding point is electrically connected to the second vertical radiating branch;

[0020] The third end of the second radiator is the second end of the second horizontal radiating branch, and the second end of the second horizontal radiating branch and the first end of the second horizontal radiating branch are two opposite ends of the second horizontal radiating branch.

[0021] In a possible embodiment, the first vertical radiating branch includes a first connecting portion and a first extending portion connected to each other, the first connecting portion is electrically connected to the first horizontal radiating branch, and the first extending portion extends in a direction away from the first connecting portion in a direction of a connecting line between the first connecting portion and the first horizontal radiating branch;

[0022] The second vertical radiating branch 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, and the second extending portion extends in a direction away from the second connecting portion in the direction of the connecting line between the second connecting portion and the second horizontal radiating branch.

[0023] In this embodiment, the first extension portion serves as the main radiation area of ​​the first radiator, and the second extension portion serves as the main radiation area of ​​the second radiator. The first extension portion is located at the end of the first radiator away from the second radiator, and the second extension portion is located at the end of the second radiator away from the first radiator. This arrangement makes the radiation intensity of the end of the first radiator connected to the connection structure and the radiation intensity of the end of the second radiator connected to the connection structure both relatively weak, thereby reducing the amount of radiation participated in by the connection structure, that is, the amount of radiation participated in by the connection structure is relatively small, thereby facilitating the debugging of the connection structure.

[0024] In a possible implementation manner, the first extension portion and the second extension portion are arranged opposite to each other.

[0025] In a possible implementation manner, the first feeding point is connected to the first connecting portion, and the second feeding point is connected to the second connecting portion.

[0026] In this embodiment, the first feed point is connected to the first connection portion, and the first extension portion serves as the main radiating arm of the first radiator, where electromagnetic radiation is relatively strong. The second feed point is connected to the second connection portion, and the second extension portion serves as the main radiating arm of the second radiator, where electromagnetic radiation is relatively strong. This arrangement results in a lower radiation intensity at both the end where the first radiator is connected to the connection structure and the end where the second radiator is connected to the connection structure. This reduces the amount of radiation contributed by the connection structure, thus facilitating debugging of the connection structure.

[0027] In a possible implementation, the antenna device further includes a first floor and a second floor, wherein the first floor and the second floor each have at least one fixing point;

[0028] 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;

[0029] 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.

[0030] In one possible embodiment, 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 both 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, and the other end of the first vertical radiating branch extends toward the first floor, with a space between the end of the first vertical radiating branch extending toward the first floor and the first floor.

[0031] The overall structure of the second radiator and the second floor after being connected is the same as the overall structure of the first radiator and the first floor after being connected.

[0032] In this embodiment, the first grounding structure, in addition to grounding the second radiator and adjusting its impedance, also supports the first radiator, allowing it to be suspended. Furthermore, the arrangement of the first vertical radiating branches extending toward the first floor reduces the cross-sectional height of the first radiator.

[0033] In a possible implementation, the antenna device further includes a first feeder and a second feeder, wherein 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.

[0034] In a possible implementation, the first floor panel includes a dielectric substrate, a ground layer, and a wiring layer, and the wiring layer and the ground layer are electrically connected through vias.

[0035] In a possible implementation, the antenna device further includes a connecting plate, and the connecting plate connects the first floor panel and the second floor panel.

[0036] In this embodiment, the connection plate is provided so that the first floor panel and the second floor panel have higher strength and can support the first radiator and the second radiator more stably.

[0037] In a possible implementation, the first floor, the second floor, and the connecting plate are respectively provided with fixing ears, and the fixing ears are each provided with a fixing point, and the fixing point is configured to fix the first floor and the second floor.

[0038] In a possible embodiment, the first floor and the second floor each have two fixing ears, the connecting plate has one fixing ear, and each fixing ear is provided with one fixing point;

[0039] One of the fixing ears of the first floor panel, the fixing ear of the connecting plate, and the fixing ear of the second floor panel are located on the same side of the integral structure formed by the first floor panel, the connecting plate, and the second floor panel, and form a "mountain"-shaped structure in combination with the first floor panel, the connecting plate, and the second floor panel;

[0040] 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 ear of the connecting plate and on different sides from the fixing ear of the connecting plate.

[0041] In this embodiment, by providing the fixing ears, the stability of the integral structure formed by the first floor panel, the connecting plate and the second floor panel can be increased during fixation.

[0042] In a possible implementation manner, the first floor panel, the connecting plate, and the second floor panel are an integrally formed structure, and the structure is a grounding structure.

[0043] In a possible implementation manner, 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.

[0044] In this embodiment, the integrally formed radiation structure not only facilitates the production and processing of the antenna device, but also ensures that the addition of the connection structure has less impact on the impedance of the first radiator and the second radiator.

[0045] In a possible implementation manner, a cross-sectional height of the entire structure formed by the ground structure and the radiation structure is 6 mm to 12 mm.

[0046] 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;

[0047] In a direction parallel to the second end of the first horizontal radiating branch, the width of the connecting structure, the width of the first horizontal radiating branch, and the width of the second horizontal radiating branch are the same.

[0048] In this embodiment, the connection structure, the first horizontal radiation branch and the second horizontal radiation branch are of equal width. This arrangement can make the structure of the antenna device more stable and facilitate processing, thereby simplifying the design of the antenna device.

[0049] In a possible implementation manner, the second end of the first radiator is opposite to the third end of the second radiator;

[0050] The connection structure is in a long strip shape, one end of the connection structure is electrically connected to the second ends of some of the first horizontal radiation branches, and the other end of the connection structure is connected to the second ends of some of the second horizontal radiation branches.

[0051] In this embodiment, when the first horizontal radiation branch, the connection structure, and the second horizontal radiation branch are integrally formed, a notch is provided in the region of the connection structure. This arrangement can reduce the overall weight of the antenna device.

[0052] In a possible implementation manner, the second end of the first radiator is opposite to the third end of the second radiator;

[0053] 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 both 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.

[0054] In this embodiment, the connection structure forms a multi-mode resonator structure, which can increase the debugging parameters of the connection structure during debugging, so that the debugging parameters of the connection structure are not limited to the length of the connection structure, thereby making the antenna device have more adjustable parameters during debugging.

[0055] In a possible implementation, the first end of the first radiator is a section of the radiator within a first wavelength range of one eighth of the distance from the end edge of the first end, wherein the first wavelength is a wavelength corresponding to the operating frequency band of the antenna device.

[0056] In a possible implementation manner, the angle between the first vertical radiating branch and the first horizontal radiating branch ranges from 80° to 100°.

[0057] In a second aspect, an embodiment of the present application further provides an electronic device, which includes the antenna device described in any of the above solutions.

[0058] 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, and will not be repeated here.

[0059] 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

[0060] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the embodiments of the present application or the description of the prior art. 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 any creative work.

[0061] FIG1 is a schematic diagram of a first antenna device according to an embodiment of the present application.

[0062] FIG2 is a schematic diagram of a second antenna device according to an embodiment of the present application.

[0063] FIG3 is a schematic diagram of a third antenna device according to an embodiment of the present application.

[0064] FIG4 is a schematic diagram of the coupling path of the antenna device according to an embodiment of the present application.

[0065] FIG5 is a diagram showing the spatial coupling path of the electric field between the first radiator and the second radiator in an embodiment of the present application.

[0066] FIG6 shows a decoupling path of the electric field between the first radiator and the second radiator in an embodiment of the present application.

[0067] FIG. 7 is a standing wave curve diagram of the first antenna device according to an embodiment of the present application.

[0068] FIG8 is an isolation curve diagram of the first antenna device according to an embodiment of the present application.

[0069] FIG9 is a horizontal plane radiation pattern of the first antenna device according to an embodiment of the present application.

[0070] Explanation of the accompanying drawings: 100, first radiator; 110, first horizontal radiating branch; 120, first vertical radiating branch; 130, first grounding structure; 140, first feeding line; 121, first connecting portion; 122, first extension portion; 200, second radiator; 210, second horizontal radiating branch; 220, second vertical radiating branch; 230, second grounding structure; 240, second feeding line; 221, second connecting portion; 222, second extension portion; 250, second feeding point; 260, first feeding point; 300, connection structure; 400, first floor; 410, fixing ear; 500, second floor; and 600, connecting plate. DETAILED DESCRIPTION

[0071] With the continuous development of communication technology, whether it is the introduction of 6G frequency bands in Wi-Fi7 by wireless local area network (WLAN) wireless access points (APs), or the need for multi-operator and multi-band co-construction and sharing of 5G base stations, the number of RF channels in electronic devices has gradually increased, and the number of antennas corresponding to the RF channels has also increased accordingly. The increase in the number of antennas makes it difficult to layout the antennas inside electronic devices. If the traditional layout scheme is adopted, both the isolation index and the directional pattern index will deteriorate. In order to optimize the isolation index and the directional pattern index, the spacing between antennas needs to be increased when laying out the antennas inside electronic devices. This is contrary to the current trend of miniaturization of equipment.

[0072] Related technologies typically use polarization isolation to simultaneously feed two radio frequencies into a single antenna. While this approach solves the problem of two antennas coexisting within a single frequency band, the cross-polarization introduces a problem: a poor horizontal omnidirectional radiation pattern and a high profile, making it unsuitable for deployment in products like WLAN and small base stations.

[0073] In view of this, the embodiment of the present application constructs a coupling path that is opposite to the spatial coupling path between two radiators in the same frequency band, thereby achieving the cancellation of electromagnetic wave energy, so that the two radiators that are close to each other have higher isolation and better directional pattern indicators; and the antenna cross-section in the embodiment of the present application is low, which is conducive to the miniaturization of electronic equipment.

[0074] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0075] As shown in FIG1 , the antenna device provided in an embodiment of the present application includes a first radiator 100, a first feed point (not shown), and a first ground structure 130, as well as a second radiator 200, a second feed point 250, and a second ground structure 230. The first radiator 100 has a first end and a second end, the first feed point is electrically connected to the first end of the first radiator 100, and the first ground structure 130 is electrically connected to the second end of the first radiator 100. The second radiator 200 has a third end and a fourth end, the second feed point 250 is electrically connected to the fourth end of the second radiator 200, and the second ground structure 230 is electrically connected to the third end of the second radiator 200.

[0076] As shown in FIG4 , the antenna device includes a first radiator 100, a first feed point 260, and a first ground structure 130, as well as a second radiator 200, a second feed point 250, and a second ground structure 230. The first radiator 100 indirectly couples to the second radiator 200 to form a first coupling current, and the second radiator 200 indirectly couples to the first radiator 100 to form a second coupling current. To ensure good isolation between the first radiator 100 and the second radiator 200, the antenna device provided in this embodiment of the present application includes a connecting structure 300 electrically connected between the second end of the first radiator 100 and the third end of the second radiator 200, thereby forming a decoupling path between the first radiator 100 and the second radiator 200. In other words, the antenna device provided in this embodiment of the present application further includes a connecting structure 300, the two ends of which are electrically connected to the second end of the first radiator 100 and the third end of the second radiator 200, respectively, to form a decoupling path between the first radiator 100 and the second radiator 200. The decoupling path can generate a first reverse-phase coupling current in the first radiator 100 that is in opposite phase to the first coupling current, and a second reverse-phase coupling current in the second radiator 200 that is in opposite phase to the second coupling current. The first reverse-phase coupling current is the current coupled from the second radiator 200 to the first radiator 100 through the decoupling path, and the second reverse-phase coupling current is the current coupled from the first radiator 100 to the second radiator 200 through the decoupling path. As a result, the first reverse-phase coupling current and the first coupling current at least partially offset each other, and the second reverse-phase coupling current and the second coupling current at least partially offset each other, thereby reducing current coupling between the first radiator 100 and the second radiator 200, thereby improving isolation between the first radiator 100 and the second radiator 200.

[0077] As shown in Figure 4 , the first radiator 100 indirectly couples to the second radiator 200 to form a first coupling current path, and the second radiator 200 indirectly couples to the first radiator 100 to form a second coupling current path, defined as a spatial coupling path. The decoupling path is the decoupling path between the first radiator 100 and the second radiator 200.

[0078] It should be noted that the above-mentioned “indirect coupling” can be understood as two conductors being electrically connected in an air-spaced / non-contact manner.

[0079] Please refer to Figures 5 and 6. Figure 5 illustrates the spatial coupling path of the electric field between the first radiator 100 and the second radiator 200 according to an embodiment of the present application, while Figure 6 illustrates the decoupling path of the electric field between the first radiator 100 and the second radiator 200 according to an embodiment of the present application. Figure 5 only shows a portion of the electric field flow diagram showing the second radiator 200 coupling a second coupling current to the first radiator 100 via the spatial coupling path. Combining Figures 5 and 6 shows that the second radiator 200 couples a second, anti-phase coupling current to the first radiator 100 via the decoupling path, which is opposite in phase to the second coupling current.

[0080] Compared to setting a decoupling path at the circuit end, the antenna device provided in the embodiment of the present application sets a decoupling path between the two radiators, eliminating the need to modify the RF circuit, reducing circuit complexity, and at the same time, reducing losses caused by circuit decoupling. In addition, the additional addition of circuit decoupling generally has a significant impact on the radiation pattern, and is generally narrowband decoupling. The antenna device provided in the embodiment of the present application is suitable for broadband decoupling and has good isolation and good radiation pattern indicators.

[0081] In addition, the decoupling path (connection structure 300) of the antenna device provided in the embodiment of the present application is connected between the 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.

[0082] It is worth noting that the ends in the embodiments of the present application (e.g., the first end, second end, third end, and fourth end) cannot be narrowly understood as being a single point, an edge line, or an end face of an end. They can also be considered as a section of the radiator near the end. For example, the first end of the first radiator 100 can be considered as a section of the radiator within a range of one-eighth of a first wavelength from the edge of the first end. The first wavelength can be a wavelength corresponding to the operating frequency band of the antenna device, a wavelength corresponding to the center frequency of the operating frequency band, or a wavelength corresponding to a resonance point.

[0083] 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. 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 100 is the second end of the first horizontal radiating branch 110. The second end of the first horizontal radiating branch 110 and the first end of the first horizontal radiating branch 110 are opposite ends of the first horizontal radiating branch 110.

[0084] 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, and the second feeding point is electrically connected to the second vertical radiating branch 220. The third end of the second radiator 200 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 opposite ends of the second horizontal radiating branch 210.

[0085] In the embodiment of the present application, the connection structure 300 connects the second end of the first horizontal radiating branch 110 and the second end of the second horizontal radiating branch 210. The second end of the first horizontal radiating branch 110 is connected to the first ground structure 130 and is located away from the first vertical radiating branch 120 connected to the first feed point. The second end of the second horizontal radiating branch 210 is connected to the second ground structure 230 and is located away from the second vertical radiating branch 220 connected to the second feed point. Specifically, the connection structure 300 is connected to areas where the electromagnetic radiation of the first radiator 100 and the second radiator 200 is relatively weak. This reduces the amount of radiation that the connection structure 300 contributes to. This reduced contribution to radiation reduces the impact of the connection structure 300 on the spatial coupling path, thereby facilitating debugging of the connection structure 300. In other words, in order for the connection structure 300 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 (for example, adjusting the length of the connection structure 300) based on the spatial coupling path. This allows the connection structure 300 to generate a decoupling path opposite to the spatial coupling path. The connection structure 300 contributes less to radiation, so when adjusting parameters of the connection structure 300 (for example, the length of the connection structure 300), the connection structure 300 has a smaller impact on the spatial coupling path, thereby facilitating debugging of the connection structure 300. Furthermore, the connection structure 300's small contribution to radiation allows it to be used to adjust the impedance of the first radiator 100 and the second radiator 200, thereby increasing the parameters for adjusting the impedance of the first radiator 100 and the second radiator 200.

[0086] It is worth noting that the first vertical radiating branches 120 and the first horizontal radiating branches 110 cannot be narrowly understood as being perpendicular to each other. It can also be considered that the first vertical radiating branches 120 and the first horizontal radiating branches 110 are nearly perpendicular to each other. For example, the angle between the first vertical radiating branches 120 and the first horizontal radiating branches 110 can range from 80° to 100°.

[0087] Continuing with Figure 1, the first vertical radiating branch 120 includes a first connecting portion 121 and a first extending portion 122. The first connecting portion 121 is electrically connected to the first horizontal radiating branch 110. The first extending portion 122 extends away from the first connecting portion 121 along the direction of the connecting line intersecting the first connecting portion 121 and the first horizontal radiating branch 110. The first feeding point is connected to the first connecting portion 121. The first extending portion 122 is the main radiating arm of the first radiator 100, where electromagnetic radiation is stronger. The second vertical radiating branch 220 includes a second connecting portion 221 and a second extending portion 222. The second connecting portion 221 is connected to the second horizontal radiating branch 210. The second extending portion 222 extends away from the second connecting portion 221 along the direction of the connecting line intersecting the second horizontal radiating branch 210. The second feed point is connected to the second connection portion 221. The second extension portion 222 forms the main radiating arm of the second radiator 200, where electromagnetic radiation is relatively strong. The first extension portion 122 serves as the main radiation zone of the first radiator 100, while the second extension portion 222 serves as the main radiation zone of the second radiator 200. The first extension portion 122 is located at the end of the first radiator 100 away from the second radiator 200, while the second extension portion 222 is located at the end of the second radiator 200 away from the first radiator 100. This arrangement reduces the radiation intensity at the end of the first radiator 100 connected to the connection structure 300 and the end of the second radiator 200 connected to the connection structure 300. This reduces the amount of radiation contributed by the connection structure 300, thereby facilitating the debugging of the connection structure 300.

[0088] In some embodiments of the present application, the second end of the first radiator 100 is opposite to the third end of the second radiator 200, 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.

[0089] Since the first extension portion 122 is the main radiating arm of the first radiator 100 and the electromagnetic radiation therein is relatively strong, and the second extension portion 222 is the main radiating 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 phase of the electric field coupled from the first radiator 100 to the second radiator 200 along the spatial coupling path, and the phase of the electric field coupled from the second radiator 200 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 (for example, the frequency band is 5.13GHz-7.41GHz, and the first radiator 100 and the second radiator 200 are at the same frequency), thereby enabling the setting of the decoupling path to be applicable to an antenna device with a certain bandwidth. That is to say, within a certain broadband frequency band (for example, 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), the distance between the first extension portion 122 and the second extension portion 222 of the antenna device can ensure good isolation and good directivity between the first radiator 100 and the second radiator 200 when the following conditions are met. The distance between the first extension portion 122 and the second extension portion 222 meets the condition that within a certain broadband frequency band (for example, 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), 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.

[0090] To facilitate adjustment of the antenna device, the distance between the first extension portion 122 and the second extension portion 222 is increased or decreased by adjusting the length of the connecting structure 300 during adjustment. Specifically, the structure of the first radiator 100 and the second radiator 200 is already set, and the distance between the first radiator 100 and the second radiator 200 is the length of the connecting structure 300. Specifically, as the length of the connecting structure increases, the distance between the first extension portion 122 and the second extension portion 222 increases. For example, the length of the connecting structure 300 can be one-quarter the wavelength of the signal radiated by the first radiator 100. If the second radiator 200 and the first radiator 100 have the same frequency, assuming the distance between the first extension portion 122 and the second extension portion 222 is x, then when the length of the connecting structure 300 is adjusted to half the wavelength of the signal radiated by the first radiator 100, the distance between the first extension portion 122 and the second extension portion 222 is x plus one-quarter the wavelength of the signal radiated by the first radiator 100.

[0091] For example, the first radiator 100 and the second radiator 200 are of the same frequency. When adjusting the distance between the first extension portion 122 and the second extension portion 222 in the frequency band of 5.13 GHz-7.41 GHz, the length of the connecting structure 300 is usually first set to one-fourth 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.

[0092] Continuing with FIG1 , the antenna device further includes a first floor panel 400 and a second floor panel 500 . Each of the first floor panel 400 and the second floor panel 500 has at least one fixing point. The fixing point is used to fix the first floor panel 400 and the second floor panel 500 . In the embodiment of the present application, the first floor panel 400 and the second floor panel 500 are both floor panels. The floor panel can generally refer to at least a portion of any ground layer, ground plate, or ground metal layer within an electronic device (such as a 5G small base station), or at least a portion of any combination of any of the above ground layers, ground plates, or grounding components. The floor panel can be used for grounding components within the electronic device. In one embodiment, the floor panel can be a printed circuit board (PCB), such as an 8-layer, 10-layer, or 12-14-layer board having 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 fiberglass or polymer. In one embodiment, the floor panel includes a dielectric substrate, a ground layer, and a trace layer, with the trace layer and the ground layer being electrically connected via vias.

[0093] Any of the above-mentioned grounding layers, grounding plates, or grounding metal layers are made of a conductive material. In one embodiment, the conductive material can be any of the following: copper, aluminum, stainless steel, brass, and alloys thereof, 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, a graphite-coated substrate, a copper-plated substrate, a brass-plated substrate, and an aluminum-plated substrate. Those skilled in the art will appreciate that the grounding layer / grounding plate / grounding metal layer can also be made of other conductive materials.

[0094] 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 radiating branch 110, and the other end is electrically connected to the first ground plane 400. The first grounding structure 130 is provided for both grounding the first radiator 100 and adjusting the impedance of the first radiator 100. 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 radiating branch 210, and the other end is electrically connected to the second ground plane 500. The second grounding structure 230 is provided for both grounding the second radiator 200 and adjusting the impedance of the second radiator 200.

[0095] In an exemplary embodiment, the first radiator 100 is connected to the first floor panel 400 in a structure as follows: the first radiator 100 is located on one side of the first floor panel 400, and the first grounding structure 130 is located between the first floor panel 400 and the first horizontal radiating branch 110. The first grounding structure 130 has two ends electrically connected to the first floor panel 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 toward the first floor panel 400. The end of the first vertical radiating branch 120 extending toward the first floor panel 400 is separated from the first floor panel 400 by a space. In other words, in addition to the aforementioned functions of grounding the first radiator 100 and adjusting the impedance of the first radiator 100, the first grounding structure 130 also supports the first radiator 100, allowing it to be suspended in the air. In addition, the first vertical radiating branches 120 are arranged to extend toward the first floor 400 , so that the cross-sectional height of the first radiator 100 is relatively small.

[0096] For example, as shown in FIG1 , the first radiator 100 is located on the upper side of the first floor panel 400, the first horizontal radiating branch 110 is parallel to the first floor panel 400, and the two ends of the first grounding structure 130 are electrically connected to the edge of the first floor panel 400 and the edge of the first horizontal radiating branch 110, respectively. Of course, the first radiator 100 is located on the upper side of the first floor panel 400 when the first floor panel 400 is placed horizontally. If the first floor panel 400 is arranged vertically, the first radiator 100 can be located on the left or right side of the first floor panel 400. Alternatively, if the first floor panel 400 is arranged tilted, the first radiator 100 can be located at the upper portion in a direction perpendicular to the tilt direction of the first floor panel 400.

[0097] In this embodiment of the present application, to facilitate the production and processing of the antenna device and enhance its aesthetics, the overall structure of the second radiator 200 and the second floor panel 500 is identical to the overall structure of the first radiator 100 and the first floor panel 400. That is, the structure of the second radiator 200 is identical to that of the first radiator 100, the structure of the second floor panel 500 is identical to that of the first floor panel 400, and the positional relationship between the second radiator 200 and the second floor panel 500 is also identical to the positional relationship between the first radiator 100 and the first floor panel 400. It is worth noting that the term "identical structure" here refers to identical structure, size, and shape. In other words, the overall structure of the second radiator 200 and the second floor panel 500 is symmetrical to the overall structure of the first radiator 100 and the first floor panel 400.

[0098] Continuing with FIG1 , the antenna device further includes a first feeder line 140 and a second feeder line 240. The first feeder line 140 is connected to a first feeding point, and a portion of the first feeder line 140 is fixed to a first floor panel 400. Current waves or electromagnetic waves transmitted by the first feeder line 140 are input from the first feeding point to the first radiator 100. The second feeder line 240 is connected to a second feeding point, and a portion of the second feeder line 240 is fixed to a second floor panel 500. Current waves or electromagnetic waves transmitted by the second feeder line 240 are input from the second feeding point to the second radiator 200.

[0099] To strengthen the structure of the first floor panel 400 and the second floor panel 500, the antenna device further includes a connecting plate 600, which connects the first floor panel 400 and the second floor panel 500. This arrangement provides the first floor panel 400 and the second floor panel 500 with greater strength, enabling them to more stably support the first radiator 100 and the second radiator 200. Of course, in some embodiments of the present application, since the first floor panel 400 and the second floor panel 500 have no effect on the radiation of the antenna device, the connecting plate 600 may not be provided between the first floor panel 400 and the second floor panel 500. This is not specifically limited herein.

[0100] Optionally, in order to facilitate the processing of the antenna device, the first floor panel 400 , the connecting plate 600 and the second floor panel 500 are integrally formed into a structure that is a grounding structure.

[0101] Continuing with Figure 1 , illustratively, each of the first floor panel 400 and the second floor panel 500 has two fixing ears 410 , and the connecting plate 600 has one fixing ear 410 . Each fixing ear 410 is provided with a fixing point. One fixing ear 410 of the first floor panel 400 , the fixing ear 410 of the connecting plate 600 , and the fixing ear 410 of the second floor panel 500 are located on the same side of the overall structure formed by the first floor panel 400 , the connecting plate 600 , and the second floor panel 500 , and together with the first floor panel 400 , the connecting plate 600 , and the second floor panel 500 , form an "E"-shaped structure. The other fixing ear 410 of the first floor panel 400 and the other fixing ear 410 of the second floor panel 500 are located at either end of the fixing ear 410 of the connecting plate 600 , and on different sides of the fixing ear 410 of the connecting plate 600 . That is to say, the overall structure formed by the first floor panel 400, the connecting plate 600 and the second floor panel 500 has five fixing ears 410, three of which are located on one side of the overall structure formed by the first floor panel 400, the connecting plate 600 and the second floor panel 500, and the other two are located on the other side of the overall structure formed by the first floor panel 400, the connecting plate 600 and the second floor panel 500, and the five fixing ears 410 are arranged crosswise. This arrangement can increase the stability of the overall structure formed by the first floor panel 400, the connecting plate 600 and the second floor panel 500 when it is fixed.

[0102] In some embodiments of the present application, to facilitate the production and processing of the antenna device, the first radiator 100, the first ground structure 130, the connecting structure 300, the second radiator 200, and the second ground structure 230 are integrally formed into a radiating structure. This arrangement not only facilitates the production and processing of the antenna device, but also minimizes the impact of the connecting structure 300 on the impedance of the first radiator 100 and the second radiator 200.

[0103] In some embodiments of the present application, the cross-sectional height of the whole formed by the above-mentioned grounding structure and the above-mentioned radiating structure is 6mm-12mm. The cross-sectional height here refers to the height of the whole structure formed by the above-mentioned grounding structure and the above-mentioned radiating structure in a direction perpendicular to the first floor 400 when the whole structure formed by the above-mentioned grounding structure and the above-mentioned radiating structure is cut along a plane perpendicular to the first floor 400. Exemplarily, the cross-sectional height of the whole structure formed by the above-mentioned grounding structure and the above-mentioned radiating structure is 8mm, thereby enabling the antenna device provided in the embodiment of the present application to be adapted for wall-mounted and wall-mounted products, and the decoupling path provided in the antenna device provided in the embodiment of the present application is suitable for decoupling of low-profile wiring devices.

[0104] In the embodiment of the present application, the structure of the connection structure 300 can be diverse, as long as it can connect the second end of the first radiator 100 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:

[0105] In the first embodiment, referring to FIG1 , the second end of the first horizontal radiating branch 110 is opposite the second end of the second horizontal radiating branch 210. In a direction parallel to the second end of the first horizontal radiating branch 110 (i.e., the extension direction of the first horizontal radiating branch 110), the width of the connecting structure 300, the width of the first horizontal radiating branch 110, and the width of the second horizontal radiating branch 210 are the same. In other words, the connecting structure 300, the first horizontal radiating branch 110, and the second horizontal radiating branch 210 are of equal width. This arrangement makes the antenna device more stable, facilitates processing, and simplifies the design of the antenna device.

[0106] In the second embodiment, referring to Figure 2 , the second end of the first radiator 100 is opposite the third end of the second radiator 200. The connecting structure 300 is an elongated strip-shaped structure. One end of the connecting structure 300 is electrically connected to the second ends of a portion of the first horizontal radiating branches 110, and the other end of the connecting structure 300 is connected to the second ends of a portion of the second horizontal radiating branches 210. In other words, when the first horizontal radiating branches 110, the connecting structure 300, and the second horizontal radiating branches 210 are integrally formed, a gap is provided in the connecting structure 300 (i.e., the width of the connecting structure 300 is smaller than the width of the first horizontal radiating branches 110 and / or the width of the second horizontal radiating branches 210). This configuration can reduce the overall weight of the antenna device. In this embodiment of the present application, the connecting structure 300 simply connects the second end of the first radiator 100 and the third end of the second radiator 200 to form a decoupling path.

[0107] In the third example, referring to Figure 3 , the second end of the first radiator 100 is opposite the third end of the second radiator 200, and the connecting structure 300 is a T-shaped structure having a transverse connecting portion and a longitudinal connecting portion connected to the middle of the transverse connecting portion. The ends of the transverse connecting portion are electrically connected to the second end of the first radiator 100 and the third end of the second radiator 200, respectively. In other words, the connecting structure 300 forms a multi-mode resonator. This structure increases the number of adjustable parameters (e.g., the length of the protruding portion) that can be adjusted during debugging of the connecting structure 300. This allows the antenna device to have more adjustable parameters during debugging.

[0108] The above three connection structures 300 are merely exemplary structures, and may also be other structures, which are not listed here one by one.

[0109] Exemplarily, the antenna device provided in the embodiment of the present application can be applied to a low-profile broadband same-frequency dual-feed planar inverted F antenna (English: Planar Inverted F-shaped Antenna, abbreviated as PIFA). Exemplarily, the frequency range is 5.13GHz-7.41GHz, which can cover the full 5G and 6G frequency bands 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, the structure is simple, the cost is low, the volume of the equipment is saved, and the radiation direction in the upper half space is uniform, which overcomes the coverage problem after the antenna is close.

[0110] Exemplarily, the connection structure 300 of the embodiment of the present application takes the above-mentioned first structure (i.e., the structure shown in Figure 1) as an example to draw a standing wave curve, an isolation curve and a radiation diagram, and the results are shown in Figures 7, 8 and 9. In the structure shown in Figure 1, the length of the connection structure is 11 mm (approximately one-quarter wavelength of the center frequency), and the distance between the first extension portion 122 and the second extension portion 222 is 39.4 mm.

[0111] Figure 7 is a standing wave curve diagram of the first antenna device according to an embodiment of the present application, and Figure 8 is an isolation curve diagram of the first antenna device according to an embodiment of the present application. It can be seen from Figures 7 and 8 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 by 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 by the embodiment of the present application can offset the current coupled into the antenna through the spatial coupling path.

[0112] Figure 9 is the horizontal plane radiation pattern of the first antenna device according to the embodiment of the present application. It can be seen from Figure 9 that the antenna device provided by the embodiment of the present application has good radiation pattern indicators and can meet the application requirements, indicating that the decoupling path provided by the embodiment of the present application can offset the current coupled into the antenna through the spatial coupling path.

[0113] An embodiment of the present application further provides an electronic device, which includes the antenna device of any of the above solutions.

[0114] 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 this application. Changes or adjustments to their relative relationships should also be regarded as the scope of implementation of this application without substantially changing the technical content.

[0115] It should be noted that, in this application, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, a first feature being "above," "above," and "above" a 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 at a higher level than the second feature. A first feature being "below," "below," and "below" a 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 at a lower level than the second feature.

[0116] Furthermore, in this application, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connected," "fixed," and the like should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integration; they may refer to direct connection or indirect connection through an intermediate medium; they may refer to internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0117] Throughout this specification, reference to terms such as "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 illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0118] 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 them. 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 make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. An antenna device, comprising: 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; as well as 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, wherein: 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; as well as 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, wherein: 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; as well as 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, wherein: The second end of the first horizontal radiating branch is opposite to the second end of the second horizontal radiating branch; as well as 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.

5. The antenna device according to claim 3, wherein: 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; as well as 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.

6. The antenna device according to claim 5, wherein: The first extending portion and the second extending portion are arranged opposite to each other.

7. The antenna device according to claim 5, wherein: The first feeding point is connected to the first connection portion, and the second feeding point is connected to the second connection portion.

8. The antenna device according to claim 3, wherein: 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; as well as 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.

9. The antenna device according to claim 8, wherein: 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; as well as 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.

10. The antenna device according to claim 9, wherein: The antenna device also includes a first feed line and a second feed line; The first feeder is connected to the first feeder point, and a portion of the first feeder is fixed to the first floor; as well as The second feeder line is connected to the second feeder point, and a portion of the first feeder line is fixed to the first floor.

11. The antenna device according to claim 9, wherein: The antenna device further includes a connection plate connecting the first floor panel and the second floor panel.

12. The antenna device according to claim 11, wherein: The first floor, the second floor and the connecting plate are respectively provided with fixing ears, and the fixing ears are each provided with a fixing point, and the fixing point is configured to fix the first floor and the second floor.

13. The antenna device according to claim 11, wherein: The first floor panel, the second floor panel and the connection plate constitute a grounding structure, and The grounding structure is an integrally formed structure.

14. The antenna device according to claim 13, wherein: The first radiator, the first ground structure, the connection structure, the second radiator and the second ground structure constitute a radiating structure, and The radiation structure is an integrally formed structure.

15. The antenna device according to claim 14, wherein: The overall cross-sectional height formed by the ground structure and the radiation structure is 6 mm to 12 mm.

16. The antenna device according to claim 1, wherein: One end of the connection structure is partially electrically connected to the second end of the first horizontal radiation branch, and the other end of the connection structure is partially connected to the second end of the second horizontal radiation branch.

17. The antenna device according to claim 1, wherein: The second end of the first radiator is opposite to the third end of the second radiator; and 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.

18. The antenna device according to claim 1, wherein: The first end of the first radiator is a section of the radiator within a first wavelength range of one eighth of the distance from the end edge of the first end; wherein the first wavelength is a wavelength corresponding to the working frequency band of the antenna device.

19. The antenna device according to claim 1, wherein: The included angle between the first vertical radiating branch and the first horizontal radiating branch is in a range of 80° to 100°.

20. An electronic device comprising the antenna device according to any one of claims 1 to 19.

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