Antenna, electronic device and vehicle

Abstract

The present application relates to an antenna, an electronic device and a vehicle. The antenna comprises a ground plane and a radiating mechanism. The ground plane is provided with at least two feed points. The radiating mechanism is arranged on the ground plane, and the radiating mechanism has at least two feed branches, wherein each feed branch is electrically connected to a feed point.

Description

Antenna, electronic device and vehicle

[0001] The present application claims priority to the Chinese patent application No. 202422409641.4, filed on September 30, 2024, with the Chinese Patent Office, the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The present application relates to the field of communication technology, in particular to an antenna, an electronic device and a vehicle. BACKGROUND

[0003] In the related art, antennas are widely used in many fields such as telecommunications, radar, navigation, mobile communication, smart devices, etc. Antennas are used to transmit and receive electromagnetic waves for wireless signal transmission. TECHNICAL PROBLEM

[0004] In the GNSS (Global Navigation Satellite System), one feed branch of an antenna corresponds to multiple feed points, which causes the surrounding environment to have a greater impact on the axial ratio and the directional diagram of the antenna. TECHNICAL SOLUTION

[0005] The present application provides an antenna, comprising a ground plate and a radiating mechanism, the ground plate is provided with at least two feed points, the radiating mechanism is arranged on the ground plate, and the radiating mechanism has at least two feed branches, each feed branch is electrically connected with a feed point.

[0006] The present application also provides an electronic device comprising the antenna as described above.

[0007] The present application also provides a vehicle comprising the electronic device as described above. ADVANTAGEOUS EFFECTS

[0008] The antenna provided by the present application sets at least two feed points on the ground plate and at least two feed branches on the radiating mechanism, so that each feed branch corresponds to a feed point, thereby forming an antenna structure with separated radiators. Thus, the influence of the surrounding environment on the axial ratio and the directional diagram of the antenna can be improved, and the antenna has good environmental influence resistance and can maintain good performance in a complex environment. BRIEF DESCRIPTION OF DRAWINGS

[0009] FIG. 1 is a structural schematic diagram of an antenna provided in an example embodiment of the present application;

[0010] FIG. 2 is another structural schematic diagram of an antenna provided in an example embodiment of the present application;

[0011] FIG. 3 is a structural schematic diagram of a high-frequency radiating element provided in an example embodiment of the present application;

[0012] Fig. 4 is a structural diagram of a low-frequency radiating element according to an exemplary embodiment of the present application;

[0013] Fig. 5 is a structural diagram of a floor according to an exemplary embodiment of the present application;

[0014] Fig. 6 is a structural diagram of a high-frequency substrate according to an exemplary embodiment of the present application;

[0015] Fig. 7 is another structural diagram of a high-frequency substrate according to an exemplary embodiment of the present application;

[0016] Fig. 8 is a structural diagram of a low-frequency substrate according to an exemplary embodiment of the present application;

[0017] Fig. 9 is another structural diagram of a low-frequency substrate according to an exemplary embodiment of the present application;

[0018] Fig. 10 is a structural block diagram of a floor according to an exemplary embodiment of the present application;

[0019] Fig. 11 is a structural block diagram of an electronic device according to an exemplary embodiment of the present application;

[0020] Fig. 12 is a structural block diagram of a vehicle according to an exemplary embodiment of the present application.

[0021] Reference Signs: 1, floor; 11, high-frequency feeding point; 12, low-frequency feeding point; 13, dielectric substrate; 14, cladding layer; 15, first power-division phase shifter; 16, second power-division phase shifter; 2, high-frequency radiating element; 21, high-frequency support; 211, high-frequency substrate; 22, high-frequency radiator; 221, high-frequency feeding branch; 222, high-frequency radiating branch; 2221, third end; 223, high-frequency grounding branch; 224, high-frequency loading branch; 2241, first end; 2242, second end; 3, low-frequency radiating element; 31, low-frequency support; 311, low-frequency substrate; 32, low-frequency radiator; 321, low-frequency feeding branch; 322, low-frequency radiating branch; 3221, sixth end; 323, low-frequency grounding branch; 324, low-frequency loading branch; 3241, fourth end; 3242, fifth end. Embodiments of the present application

[0022] Referring to Figs. 1 to 10, the present application provides an antenna. The antenna includes a floor 1 and a radiating mechanism. The floor 1 is provided with at least two feeding points. The radiating mechanism is arranged on the floor 1. The radiating mechanism has at least two feeding branches. Each feeding branch is electrically connected to a feeding point.

[0023] In the embodiments of the present application, at least two feeding points are arranged on the floor 1, and at least two feeding branches are arranged on the radiating mechanism, so that each feeding branch corresponds to a feeding point, thereby forming an antenna structure of separate radiators. In this way, the influence of the surrounding environment on the axial ratio and the radiation pattern of the antenna can be improved, so that the antenna has better anti-environmental influence ability and can maintain good performance in a complex environment.

[0024] For example, four feeding points are arranged on the floor 1, and the corresponding radiating mechanism has four feeding branches. The four feeding branches correspond to the four feeding points one by one, thereby forming an antenna structure of separate radiators. In this way, the influence of the surrounding environment on the axial ratio and the radiation pattern of the antenna can be improved, so that the antenna has good anti-environmental influence ability and can maintain good performance in a complex environment.

[0025] The floor 1 is a PCB (Printed Circuit Board), which is a circuit board used for grounding in the antenna.

[0026] The radiating mechanism is configured to receive a radiation signal and realize communication.

[0027] As shown in FIG. 1 and FIG. 2, in some embodiments, the radiating mechanism includes high-frequency radiating elements 2 and low-frequency radiating elements 3 arranged at intervals. The at least two feeding branches include high-frequency feeding branches 221 and low-frequency feeding branches 321. The high-frequency feeding branches 221 are arranged on the high-frequency radiating elements 2. The low-frequency feeding branches 321 are arranged on the low-frequency radiating elements 3.

[0028] It can be understood that the high-frequency radiating elements 2 are configured to receive high-frequency signals. The low-frequency radiating elements 3 are configured to receive low-frequency signals. The high-frequency radiating elements 2 and the low-frequency radiating elements 3 are arranged at intervals to reduce mutual interference therebetween.

[0029] In some embodiments, the high-frequency radiating elements 2 include high-frequency supports 21 and high-frequency radiators 22. The high-frequency supports 21 are connected to the floor 1. The high-frequency radiators 22 are arranged on one side of the high-frequency supports 21 facing the low-frequency radiating elements 3. Alternatively, the high-frequency radiators 22 are arranged on one side of the high-frequency supports 21 facing away from the low-frequency radiating elements 3.

[0030] It can be understood that by fixing the high-frequency supports 21 to the floor 1 and arranging the high-frequency radiators 22 on the high-frequency supports 21, the high-frequency radiators 22 can be arranged at a certain height position, facilitating signal structure and reducing interference.

[0031] As shown in FIG. 1, in some embodiments, the high-frequency radiators 22 are arranged on one side of the high-frequency supports 21 facing the low-frequency radiating elements 3.

[0032] As shown in FIG. 2, in some embodiments, the high-frequency radiator 22 is arranged on one side of the high-frequency support 21 which is away from the low-frequency radiating element 3.

[0033] In the above-mentioned embodiments, the high-frequency radiator 22 is arranged on one side of the high-frequency support 21 which is away from the low-frequency radiating element 3.

[0034] As shown in FIG. 3, in some embodiments, the high-frequency support 21 comprises four high-frequency substrates 211 which are connected in series. The four high-frequency substrates 211 form the high-frequency support 21 in a square frame structure. Each of the high-frequency substrates 211 is provided with the high-frequency radiator 22.

[0035] The four high-frequency substrates 211 are connected in series to form the high-frequency support 21 in a square frame structure, so that the high-frequency support 21 has high symmetry. In this way, the antenna can form a left-handed circular polarization characteristic or a right-handed circular polarization characteristic.

[0036] In the above-mentioned embodiments, the wiring patterns of the high-frequency radiators 22 on each of the high-frequency supports 21 are completely consistent.

[0037] In some embodiments, the floor 1 is also arranged in a square shape, so that the floor 1 also has high symmetry. In this way, the center point of the floor 1 coincides with the center point of the high-frequency support 21 in the square frame structure.

[0038] As shown in FIG. 3 and FIG. 5, in some embodiments, the at least two feeding points comprise a high-frequency feeding point 11 arranged on the floor 1. The high-frequency radiator 22 comprises a high-frequency feeding branch 221 and a high-frequency radiating branch 222. The high-frequency feeding branch 221 is electrically connected to the high-frequency feeding point 11. The high-frequency radiating branch 222 is electrically connected to one end of the high-frequency feeding branch 221 which is away from the high-frequency feeding point 11.

[0039] It can be understood that the high-frequency radiating branch 222 is configured to realize the radiation of the high-frequency signal. The high-frequency feeding branch 221 and the high-frequency radiating branch 222 cooperate to form a first high-frequency common-mode resonance point of the antenna.

[0040] Specifically, the high-frequency radiating branch 222 is connected perpendicularly to the high-frequency feeding branch 221.

[0041] As shown in FIG. 6 and FIG. 7, in some embodiments, the high-frequency feeding branch 221 is perpendicular to the floor 1. The length of the high-frequency feeding branch 221 is L1, which satisfies: 10mm≤L1≤12mm.

[0042] It can be understood that when the length L1 of the high-frequency feeding branch 221 is greater than 12 mm, the height of the high-frequency substrate 211 is too high, which is not conducive to the miniaturization, light weight and integration design of the antenna. When the length L1 of the high-frequency feeding branch 221 is less than 10 mm, the distance between the high-frequency feeding branch 221 and the high-frequency radiation branch 222 and the floor 1 is too small, so that the coupling between the high-frequency feeding branch 221 and the high-frequency radiation branch 222 and the floor 1 is large, the impedance is more discrete, and the bandwidth is narrow.

[0043] For example, the length L1 of the high-frequency feeding branch 221 can be set to 10 mm, 11 mm, 12 mm, or any value between any two of them. The length L1 of the high-frequency feeding branch 221 is not limited in the present application.

[0044] Please refer to FIG. 6 and FIG. 7, in some embodiments, the high-frequency radiation branch 222 is parallel to the floor 1. The length of the high-frequency radiation branch 222 is L2, which satisfies: 22 mm≤L2≤27 mm.

[0045] It can be understood that the high-frequency radiation branch 222 is configured to receive high-frequency radiation, and the length of the high-frequency radiation branch 222 will affect the frequency of the received signal. The longer the length of the high-frequency radiation branch 222, the lower the frequency band that can be received. The shorter the length of the high-frequency radiation branch 222, the higher the frequency band that can be received. When the length L2 of the high-frequency radiation branch 222 is greater than 27 mm or less than 22 mm, the high-frequency radiation branch 222 cannot cover the frequency band of 1550 MHz-1605 MHz (megahertz), and cannot cover the high-frequency part of the GNSS global frequency band.

[0046] For example, the length L2 of the high-frequency radiation branch 222 can be set to 22 mm, 25 mm, 27 mm, or any value between any two of them. The length L2 of the high-frequency radiation branch 222 is not limited in the present application.

[0047] As shown in FIG. 6, in some embodiments, the high-frequency radiator 22 further includes a high-frequency grounding branch 223. One end of the high-frequency grounding branch 223 is electrically connected to the floor 1, and the other end is electrically connected to the high-frequency radiation branch 222.

[0048] It can be understood that the high-frequency grounding branch 223 and the high-frequency radiation branch 222 cooperate to form a second high-frequency common-mode resonance point of the antenna.

[0049] Thus, two high-frequency common-mode resonance points can be formed based on the cooperation of the high-frequency feeding branch 221, the high-frequency grounding branch 223 and the high-frequency radiation branch 222, forming a double common-mode radiation mode. The working impedance bandwidth of the antenna can be effectively expanded, and the high-frequency part of the GNSS global frequency band can be covered without complex design.

[0050] Referring to FIGS. 6 and 7, in some embodiments, the high-frequency grounding branch 223 is perpendicular to the floor 1. The length of the high-frequency grounding branch 223 is L3, which satisfies: 10 mm≤L3≤12 mm.

[0051] It can be understood that the high-frequency grounding branch 223 is arranged in parallel with the high-frequency feeding branch 221. The high-frequency grounding branch 223 needs to be electrically connected with the high-frequency feeding branch 221 on one hand and needs to realize grounding on the other hand, so the length of the high-frequency grounding branch 223 needs to be equal to the length of the high-frequency feeding branch 221.

[0052] For example, the length L3 of the high-frequency grounding branch 223 can be set to 10 mm, 11 mm, 12 mm, or any value between any two of them. The present application does not limit the length L3 of the high-frequency grounding branch 223.

[0053] Referring to FIGS. 6 and 7, in some embodiments, the distance between the high-frequency grounding branch 223 and the high-frequency feeding branch 221 is X1, which satisfies: 5.5 mm≤X1≤7.5 mm.

[0054] The distance X1 between the high-frequency grounding branch 223 and the high-frequency feeding branch 221 is configured to adjust the high-frequency frequency band of the antenna and the impedance of the antenna. When the distance X1 between the high-frequency grounding branch 223 and the high-frequency feeding branch 221 is less than 5.5 mm or greater than 7.5 mm, the antenna cannot cover the high-frequency part of the GNSS global frequency band.

[0055] For example, the distance X1 between the high-frequency grounding branch 223 and the high-frequency feeding branch 221 can be set to 5.5 mm, 6.5 mm, 7.5 mm, or any value between any two of them. The present application does not limit the distance X1 between the high-frequency grounding branch 223 and the high-frequency feeding branch 221.

[0056] As shown in FIG. 6, in some embodiments, the high-frequency radiator 22 further includes a high-frequency loading branch 224. The high-frequency loading branch 224 is arranged in parallel with the high-frequency radiating branch 222. The high-frequency loading branch 224 is located at a position of the high-frequency substrate 211 away from the floor 1.

[0057] The high-frequency loading branch 224 can form a single-differential-mode radiation mode, which can effectively improve the radiation gain of the antenna towards the zenith direction, thereby improving the overall gain of the antenna in the high-frequency band, and can better receive GNSS signals.

[0058] Based on the fact that the high-frequency loading branch 224 is located at a position of the high-frequency substrate 211 away from the floor 1, the high-frequency loading branch 224 is located above the high-frequency radiating branch 222. Thus, the single-differential-mode radiation mode of the high-frequency loading branch 224 can be coupled and excited, thereby improving the gain of the antenna.

[0059] The high-frequency loading branch 224 is independently suspended and does not form an electrical connection with other branches.

[0060] Referring to FIGS. 6 and 7, in some embodiments, the high-frequency loading branch 224 is parallel to the floor 1. The length L4 of the high-frequency loading branch 224 satisfies 46 mm≤L4≤50 mm.

[0061] When the length L4 of the high-frequency loading branch 224 is greater than 50 mm, the high-frequency loading branch 224 can exceed the high-frequency grounding branch 223 in the length direction, and the high-frequency loading branch 224 and the high-frequency grounding branch 223 can couple reverse currents, which can cause poor radiation performance. When the length L4 of the high-frequency loading branch 224 is greater than 50 mm, the high-frequency loading branch 224 can also have a small distance from the edge of the high-frequency substrate 211, which can cause the radiation of adjacent two high-frequency substrates 211 to deviate due to interference.

[0062] When the length L4 of the high-frequency loading branch 224 is less than 46 mm, the high-frequency loading branch 224 can not extend to a position corresponding to the high-frequency radiation branch 222 in the length direction, and the high-frequency loading branch 224 can not achieve its own function.

[0063] For example, the length L4 of the high-frequency loading branch 224 can be set to 46 mm, 48 mm, 50 mm, or any value between any two of them. The present application does not limit the length L4 of the high-frequency loading branch 224.

[0064] Referring to FIGS. 6 and 7, in some embodiments, the high-frequency loading branch 224 has a first end 2241 and a second end 2242 at opposite ends in the length direction. The high-frequency radiation branch 222 has a third end 2221 away from the high-frequency feeding branch 221. The first end 2241 is located between the high-frequency grounding branch 223 and the third end 2221 in the projection along the height direction of the high-frequency substrate 211. The distance X2 between the second end 2242 and the edge of the high-frequency substrate 211 satisfies X2≥4 mm.

[0065] If the projection of the first end 2241 exceeds the projection of the high-frequency grounding branch 223, the high-frequency loading branch 224 and the high-frequency grounding branch 223 can couple reverse currents, which can cause poor radiation performance.

[0066] If the projection of the first end 2241 does not exceed the projection of the third end 2221, the high-frequency loading branch 224 can not achieve its own function.

[0067] If the distance X2 between the second end 2242 and the edge of the high-frequency substrate 211 is less than 4 mm, the high-frequency loading branch 224 can have a small distance from the edge of the high-frequency substrate 211, which can cause the radiation of adjacent two high-frequency substrates 211 to deviate due to interference.

[0068] In some embodiments, the spacing between the high-frequency loading branch 224 and the high-frequency radiation branch 222 is X3. It is satisfied that 1 millimeter ≤ X3 ≤ 2 millimeters.

[0069] When the spacing X3 between the high-frequency loading branch 224 and the high-frequency radiation branch 222 is less than 1 millimeter, it will cause impedance deterioration, resulting in frequency shift of the antenna. When the spacing X3 between the high-frequency loading branch 224 and the high-frequency radiation branch 222 is greater than 2 millimeters, it will cause less coupling energy, resulting in low antenna gain.

[0070] For example, the spacing X3 between the high-frequency loading branch 224 and the high-frequency radiation branch 222 can be set to 1 millimeter, 1.5 millimeters, 2 millimeters, or any value between any two of them. The present application does not limit the spacing X3 between the high-frequency loading branch 224 and the high-frequency radiation branch 222.

[0071] As shown in FIG. 3, in some embodiments, four high-frequency feeding points 11 are arranged on the floor 1. Each high-frequency feeding point 11 corresponds to a high-frequency feeding branch 221. Among them, the four high-frequency feeding points 11 are distributed in a central symmetry along the center point of the floor 1.

[0072] Based on the central symmetry of the four high-frequency feeding points 11 along the center point of the floor 1, the angular spacing of the four high-frequency feeding points 11 on the corresponding circumference is 90 degrees. Based on the distribution of the four high-frequency feeding points 11 and the equal amplitude feeding of the four high-frequency feeding points 11, the high-frequency radiating element 2 forms left-handed circular polarization characteristics or right-handed circular polarization characteristics. Thus, the high-frequency radiating element 2 can have high flexibility and reliability when facing different directions and different polarized signals. At the same time, it can also improve the antenna gain and efficiency, reduce the test distance and design difficulty, and improve the communication and navigation performance.

[0073] As shown in FIG. 10, in some embodiments, a first power division phase shifter 15 is arranged on the floor 1. The four high-frequency feeding points 11 are all electrically connected with the first power division phase shifter 15 and are configured to feed the four high-frequency feeding points 11 with equal amplitude.

[0074] It can be understood that the first power division phase shifter 15 can ensure that each high-frequency feeding point 11 is fed with equal amplitude, so that the antenna can form left-handed circular polarization characteristics or right-handed circular polarization characteristics.

[0075] For example, the four high-frequency feeding points 11 are respectively a first high-frequency feeding point, a second high-frequency feeding point, a third high-frequency feeding point, and a fourth high-frequency feeding point.

[0076] When the phases of the first, second, third and fourth high-frequency feeding points are sequentially increased by 90 degrees in the clockwise direction, and the four high-frequency feeding points 11 feed the four high-frequency substrates 211 with the same amplitude, right-hand circularly polarized radiation can be formed, and the requirements of the GNSS system can be met. For example, the phases corresponding to the first, second, third and fourth high-frequency feeding points 11 are 0°, 90°, 180° and 270°, respectively. For example, the phases corresponding to the first, second, third and fourth high-frequency feeding points 11 are X°, (X+90)°, (X+180)° and (X+270)°, respectively.

[0077] When the phases of the first, second, third and fourth high-frequency feeding points are sequentially increased by 90 degrees in the counterclockwise direction, and the four high-frequency feeding points 11 feed the four high-frequency substrates 211 with the same amplitude, left-hand circularly polarized radiation can be formed, and the requirements of the GNSS system can be met. For example, the phases corresponding to the first, second, third and fourth high-frequency feeding points 11 are 0°, 270°, 180° and 90°, respectively. For example, the phases corresponding to the first, second, third and fourth high-frequency feeding points 11 are X°, (X-90)°, (X-180)° and (X-270)°, respectively.

[0078] In the above embodiment, each high-frequency feeding point 11 corresponds to each high-frequency feeding branch 221, so that the four high-frequency substrates 211 are also distributed in a central symmetric manner around the center point of the floor 1. Thus, the phase difference between each adjacent two high-frequency substrates 211 is also 90 degrees.

[0079] As shown in FIG. 4, in some embodiments, the low-frequency radiating element 3 includes a low-frequency support 31 and a low-frequency radiator 32. The low-frequency support 31 is connected to the floor 1. The low-frequency support 31 is arranged in a spaced manner with the high-frequency support 21. The low-frequency radiator 32 is arranged on a side of the low-frequency support 31 facing the high-frequency support 21. Alternatively, the low-frequency radiator 32 is arranged on a side of the low-frequency support 31 facing away from the high-frequency support 21.

[0080] It can be understood that, by fixing the low-frequency support 31 to the floor 1 and arranging the low-frequency radiator 32 on the low-frequency support 31, the low-frequency radiator 32 can be arranged at a certain height position, facilitating signal structure and reducing interference.

[0081] As shown in FIG. 2, in some embodiments, the low-frequency radiator 32 is arranged on a side of the low-frequency support 31 facing the high-frequency support 21.

[0082] As shown in FIG. 1, in some embodiments, the low-frequency radiators 32 are arranged on one side of the low-frequency support 31 opposite to the high-frequency support 21.

[0083] In some embodiments, the low-frequency radiators 32 are arranged on one side of the low-frequency support 31 opposite to the high-frequency support 21.

[0084] As shown in FIG. 4, in some embodiments, the low-frequency support 31 includes four low-frequency substrates 311 connected end to end. The four low-frequency substrates 311 form the low-frequency support 31 in a square frame structure. Each of the low-frequency substrates 311 is provided with a low-frequency radiator 32.

[0085] The four low-frequency substrates 311 are connected to form the low-frequency support 31 in a square frame structure, so that the low-frequency support 31 has high symmetry. Thus, the antenna can form a left-handed circular polarization characteristic or a right-handed circular polarization characteristic.

[0086] In some embodiments, the low-frequency radiators 32 on each of the low-frequency supports 31 have the same trace pattern.

[0087] In some embodiments, the floor 1 is also square-shaped, so that the floor 1 also has high symmetry. The center point of the floor 1 coincides with the center point of the low-frequency support 31 in the square frame structure.

[0088] As shown in FIG. 4 and FIG. 5, in some embodiments, the at least two feeding points include a low-frequency feeding point 12 arranged on the floor 1. The low-frequency radiator 32 includes a low-frequency feeding branch 321 and a low-frequency radiating branch 322. The low-frequency feeding branch 321 is electrically connected to the low-frequency feeding point 12. The low-frequency radiating branch 322 is electrically connected to one end of the low-frequency feeding branch 321 away from the low-frequency feeding point 12.

[0089] It can be understood that the low-frequency radiating branch 322 is configured to radiate the low-frequency signal. The low-frequency feeding branch 321 and the low-frequency radiating branch 322 cooperate to form a first low-frequency common-mode resonance point of the antenna.

[0090] In some embodiments, the low-frequency radiating branch 322 is perpendicularly connected to the low-frequency feeding branch 321.

[0091] As shown in FIG. 8 and FIG. 9, in some embodiments, the low-frequency feeding branch 321 is perpendicular to the floor 1. The length of the low-frequency feeding branch 321 is L5, which satisfies: 5mm≤L5≤7mm.

[0092] It can be understood that when the length L5 of the low-frequency feeding branch 321 is greater than 7 mm, the height of the low-frequency substrate 311 is too high, which is not conducive to the miniaturization, light weight and integration design of the antenna. When the length L5 of the low-frequency feeding branch 321 is less than 5 mm, the distance between the low-frequency feeding branch 321 and the low-frequency radiation branch 322 and the floor 1 is too small, so that the coupling between the low-frequency feeding branch 321 and the low-frequency radiation branch 322 and the floor 1 is large, the impedance is more discrete, and the bandwidth is narrow.

[0093] For example, the length L5 of the low-frequency feeding branch 321 can be set to 5 mm, 6 mm, 7 mm, or any value between any two of them. The length L5 of the low-frequency feeding branch 321 is not limited in the present application.

[0094] Please refer to FIG. 8 and FIG. 9, in some embodiments, the low-frequency radiation branch 322 is parallel to the floor 1. The length of the low-frequency radiation branch 322 is L6, which satisfies: 27 mm≤L6≤33 mm.

[0095] It can be understood that the low-frequency radiation branch 322 is configured to receive low-frequency radiation, and the length of the low-frequency radiation branch 322 will affect the frequency of the received signal. The longer the length of the low-frequency radiation branch 322, the lower the frequency band that can be received. The shorter the length of the low-frequency radiation branch 322, the higher the frequency band that can be received. When the length L6 of the low-frequency radiation branch 322 is greater than 33 mm or less than 27 mm, the low-frequency radiation branch 322 cannot cover the frequency band of 1166 MHz-1296 MHz, and thus cannot cover the low-frequency part of the GNSS global frequency band.

[0096] For example, the length L6 of the low-frequency radiation branch 322 can be set to 27 mm, 30 mm, 33 mm, or any value between any two of them. The length L6 of the low-frequency radiation branch 322 is not limited in the present application.

[0097] As shown in FIG. 8, in some embodiments, the low-frequency radiator 32 further includes a low-frequency ground branch 323. One end of the low-frequency ground branch 323 is electrically connected to the floor 1, and the other end is electrically connected to the low-frequency radiation branch 322.

[0098] The low-frequency ground branch 323 and the low-frequency radiation branch 322 cooperate to form a second low-frequency common-mode resonance point of the antenna.

[0099] Thus, two low-frequency common-mode resonance points can be formed based on the cooperation of the low-frequency feeding branch 321, the low-frequency ground branch 323 and the low-frequency radiation branch 322, forming a double common-mode radiation mode. The working impedance bandwidth of the antenna can be effectively expanded, and the low-frequency part of the GNSS global frequency band can be covered without complex design.

[0100] Referring to FIGS. 8 and 9, in some embodiments, the low-frequency ground branch 323 is perpendicular to the floor 1. The length of the low-frequency ground branch 323 is L7, which satisfies: 5 mm≤L7≤7 mm.

[0101] It can be understood that the low-frequency ground branch 323 is arranged in parallel with the low-frequency feed branch 321. The low-frequency ground branch 323 needs to be electrically connected with the low-frequency feed branch 321 on one hand and needs to realize grounding on the other hand, so the length of the low-frequency ground branch 323 needs to be equal to the length of the low-frequency feed branch 321.

[0102] For example, the length L7 of the low-frequency ground branch 323 can be set to 5 mm, 6 mm, 7 mm, or any value between any two of them. The present application does not limit the length L7 of the low-frequency ground branch 323.

[0103] Referring to FIGS. 8 and 9, in some embodiments, the distance between the low-frequency ground branch 323 and the low-frequency feed branch 321 is X4, which satisfies: 3.5 mm≤X4≤5.5 mm.

[0104] The distance X4 between the low-frequency ground branch 323 and the low-frequency feed branch 321 can be configured to adjust the low-frequency frequency band of the antenna and the impedance of the antenna. When the distance X4 between the low-frequency ground branch 323 and the low-frequency feed branch 321 is less than 3.5 mm or greater than 5.5 mm, the antenna cannot cover the low-frequency part of the GNSS global frequency band.

[0105] For example, the distance X4 between the low-frequency ground branch 323 and the low-frequency feed branch 321 can be set to 3.5 mm, 4.5 mm, 5.5 mm, or any value between any two of them. The present application does not limit the distance X4 between the low-frequency ground branch 323 and the low-frequency feed branch 321.

[0106] As shown in FIG. 8, in some embodiments, the low-frequency radiator 32 further includes a low-frequency loading branch 324. The low-frequency loading branch 324 is arranged in parallel with the low-frequency radiating branch 322. The low-frequency loading branch 324 is located at a position of the low-frequency substrate 311 away from the floor 1.

[0107] The low-frequency loading branch 324 can form a single-differential-mode radiation mode, which can effectively improve the radiation gain of the antenna towards the zenith direction, thereby improving the overall gain of the antenna at low frequencies, and can better receive GNSS signals.

[0108] Based on the fact that the low-frequency loading branch 324 is located at a position of the low-frequency substrate 311 away from the floor 1, the low-frequency loading branch 324 is located above the low-frequency radiating branch 322. Thus, the single-differential-mode radiation mode of the low-frequency loading branch 324 can be coupled and excited, thereby improving the gain of the antenna.

[0109] The low-frequency loading branch 324 is independently suspended and does not form an electrical connection with other branches.

[0110] Referring to FIGS. 8 and 9, in some embodiments, the low-frequency loading branch 324 is parallel to the floor 1. The length L8 of the low-frequency loading branch 324 satisfies 68 mm≤L8≤77 mm.

[0111] When the length L8 of the low-frequency loading branch 324 is greater than 77 mm, the low-frequency loading branch 324 can exceed the low-frequency ground branch 323 in the length direction, and the low-frequency loading branch 324 and the low-frequency ground branch 323 can couple reverse currents, which can cause poor radiation performance. When the length L8 of the low-frequency loading branch 324 is greater than 77 mm, the low-frequency loading branch 324 can also have a small distance from the edge of the low-frequency substrate 311, which can cause the radiation of adjacent two low-frequency substrates 311 to deviate due to interference.

[0112] When the length L8 of the low-frequency loading branch 324 is less than 68 mm, the low-frequency loading branch 324 can not extend to a position corresponding to the low-frequency radiation branch 322 in the length direction, and the low-frequency loading branch 324 can not achieve its own function.

[0113] For example, the length L8 of the low-frequency loading branch 324 can be set to 68 mm, 70 mm, 72 mm, or any value between any two of them. The present application does not limit the length L8 of the low-frequency loading branch 324.

[0114] Referring to FIGS. 8 and 9, in some embodiments, the low-frequency loading branch 324 has a fourth end 3241 and a fifth end 3242 at opposite ends in the length direction. The low-frequency radiation branch 322 has a sixth end 3221 away from the low-frequency feed branch 321. The fourth end 3241 is located between the low-frequency ground branch 323 and the sixth end 3221 in the projection along the height direction of the low-frequency substrate 311. The distance X5 between the fifth end 3242 and the edge of the low-frequency substrate 311 satisfies X5≥4 mm.

[0115] If the projection of the fourth end 3241 exceeds the projection of the low-frequency ground branch 323, the low-frequency loading branch 324 and the low-frequency ground branch 323 can couple reverse currents, which can cause poor radiation performance.

[0116] If the projection of the fourth end 3241 does not exceed the projection of the sixth end 3221, the low-frequency loading branch 324 can not achieve its own function.

[0117] If the distance X5 between the fifth end 3242 and the edge of the low-frequency substrate 311 is less than 4 mm, the low-frequency loading branch 324 can have a small distance from the edge of the low-frequency substrate 311, which can cause the radiation of adjacent two low-frequency substrates 311 to deviate due to interference.

[0118] Please refer to FIG. 8 and FIG. 9, in some embodiments, the spacing between the low-frequency loading branch 324 and the low-frequency radiation branch 322 is X6, which satisfies: 1mm≤X6≤2mm.

[0119] When the spacing X6 between the low-frequency loading branch 324 and the low-frequency radiation branch 322 is less than 1mm, it will cause impedance deterioration, resulting in frequency shift of the antenna. When the spacing X6 between the low-frequency loading branch 324 and the low-frequency radiation branch 322 is greater than 2mm, it will cause less coupling energy, resulting in low antenna gain.

[0120] For example, the spacing X6 between the low-frequency loading branch 324 and the low-frequency radiation branch 322 can be set to 1mm, 1.5mm, 2mm, or any value between any two of them. The present application does not limit the spacing X6 between the low-frequency loading branch 324 and the low-frequency radiation branch 322.

[0121] As shown in FIG. 5, in some embodiments, four low-frequency feeding points 12 are arranged on the floor 1. Each low-frequency feeding point 12 corresponds to a low-frequency feeding branch 321. Among them, the four low-frequency feeding points 12 are distributed in a central symmetry along the center point of the floor 1.

[0122] Based on the central symmetry of the four low-frequency feeding points 12 along the center point of the floor 1, the angular spacing of the four low-frequency feeding points 12 on the corresponding circumference is 90 degrees. Based on the distribution of the four low-frequency feeding points 12 and the equal amplitude feeding of the four low-frequency feeding points 12, the low-frequency radiating element 3 forms left-handed circular polarization characteristics or right-handed circular polarization characteristics. Thus, the low-frequency radiating element 3 can have high flexibility and reliability when facing different directions and different polarized signals. At the same time, it can also improve the antenna gain and efficiency, reduce the test distance and design difficulty, and improve the communication and navigation performance.

[0123] As shown in FIG. 10, in some embodiments, a second power division phase shifter 16 is arranged on the floor 1. The four low-frequency feeding points 12 are all electrically connected with the second power division phase shifter 16 and are configured to feed the four low-frequency feeding points 12 with equal amplitude.

[0124] It can be understood that the second power division phase shifter 16 can ensure that each low-frequency feeding point 12 is fed with equal amplitude, so that the antenna can form left-handed circular polarization characteristics or right-handed circular polarization characteristics.

[0125] The four low-frequency feeding points 12 are respectively a first low-frequency feeding point, a second low-frequency feeding point, a third low-frequency feeding point, and a fourth low-frequency feeding point.

[0126] When the phases of the first, second, third and fourth low-frequency feeding points are sequentially increased by 90 degrees in the clockwise direction, and the four low-frequency feeding points 12 feed the four low-frequency substrates 311 with equal amplitude, right-hand circularly polarized radiation can be formed, which meets the requirements of GNSS systems. For example, the phases corresponding to the first, second, third and fourth low-frequency feeding points 12 are 0°, 90°, 180° and 270°, respectively. For example, the phases corresponding to the first, second, third and fourth low-frequency feeding points 12 are X°, (X+90)°, (X+180)° and (X+270)°, respectively.

[0127] When the phases of the first, second, third and fourth low-frequency feeding points are sequentially increased by 90 degrees in the counterclockwise direction, and the four low-frequency feeding points 12 feed the four low-frequency substrates 311 with equal amplitude, left-hand circularly polarized radiation can be formed, which meets the requirements of GNSS systems. For example, the phases corresponding to the first, second, third and fourth low-frequency feeding points 12 are 0°, 270°, 180° and 90°, respectively. For example, the phases corresponding to the first, second, third and fourth low-frequency feeding points 12 are X°, (X-90)°, (X-180)° and (X-270)°, respectively.

[0128] Wherein, each low-frequency feeding point 12 corresponds to each low-frequency feeding branch 321, so that the four low-frequency substrates 311 are also distributed in a central symmetric manner around the center point of the floor 1. Thus, the phase difference between each adjacent two low-frequency substrates 311 is also 90 degrees.

[0129] As shown in FIG. 3 and FIG. 4, in some embodiments, the height of the high-frequency support 21 is H1. The height of the low-frequency support 31 is H2. It is satisfied that H1>H2.

[0130] Based on the height H1 of the high-frequency support 21 being greater than the height H2 of the low-frequency support 31, the high-frequency radiation branch 222 on the high-frequency support 21 can be located above the low-frequency radiation branch 322 on the low-frequency support 31. Thus, the influence of the low-frequency radiation branch 322 on the coupling of the high-frequency radiation branch 222 can be reduced, and the distortion of the overall radiation pattern of the high-frequency radiation branch 222 can be reduced.

[0131] Wherein, since the working frequency band of the low-frequency radiation branch 322 is low, it is less affected by the high-frequency radiation branch 222, and the overall radiation pattern of the low-frequency radiation branch 322 will not be distorted.

[0132] Based on the height H1 of the high-frequency support 21 being greater than the height H2 of the low-frequency support 31, the high-frequency loading branch 224 on the high-frequency support 21 can be located above the low-frequency loading branch 324 of the low-frequency support 31.

[0133] Generally, the height H1 of the high-frequency support 21 is set to 15 mm. The height H2 of the low-frequency support 31 is set to 10 mm. The length of the high-frequency substrate 211 is set to 64 mm. The length of the low-frequency substrate 311 is set to 90 mm. The side length of the floor 1 is set to 100 mm.

[0134] As shown in FIG. 7 and FIG. 9, in some embodiments, the high-frequency support 21 is provided with a high-frequency radiation branch 222. The low-frequency support 31 is provided with a low-frequency radiation branch 322. The high-frequency radiation branch 222 and the low-frequency radiation branch 322 are both parallel to the floor 1. The spacing between the high-frequency radiation branch 222 and the floor 1 is D1. The spacing between the low-frequency radiation branch 322 and the floor 1 is D2. It is satisfied that D1>D2.

[0135] Based on the spacing D1 between the high-frequency radiation branch 222 and the floor 1 being greater than the spacing D2 between the low-frequency radiation branch 322 and the floor 1, the high-frequency radiation branch 222 can be located above the low-frequency radiation branch 322. In this way, the influence of the low-frequency radiation branch 322 on the coupling of the high-frequency radiation branch 222 can be reduced, and the distortion of the overall radiation pattern of the high-frequency radiation branch 222 can be reduced.

[0136] In addition, since the working frequency band of the low-frequency radiation branch 322 is low, it is less affected by the high-frequency radiation branch 222, and the overall radiation pattern of the low-frequency radiation branch 322 will not be distorted.

[0137] As shown in FIG. 2, in some embodiments, the high-frequency support 21 is located within the area enclosed by the low-frequency support 31. The spacing between the high-frequency support 21 and the low-frequency support 31 is D3. It is satisfied that 11 mm≤D3≤15 mm.

[0138] It can be understood that, since the height H1 of the high-frequency support 21 is greater than the height H2 of the low-frequency support 31, the high-frequency support 21 is arranged within the area enclosed by the low-frequency support 31, which can reduce the interference of the high-frequency support 21 on the low-frequency support 31. By controlling the spacing D3 between the high-frequency support 21 and the low-frequency support 31 within the range of 11 mm to 15 mm, the isolation effect between the high-frequency support 21 and the low-frequency support 31 can be ensured, and the small size design of the antenna is facilitated, which prevents the antenna from being too large to be installed.

[0139] When the distance D3 between the high-frequency support 21 and the low-frequency support 31 is less than 11 mm, the isolation effect between the high-frequency support 21 and the low-frequency support 31 is poor, and the high-frequency signal and the low-frequency signal can interfere with each other, which is not conducive to the structure of the signal. When the distance D3 between the high-frequency support 21 and the low-frequency support 31 is greater than 15 mm, the overall size of the antenna will be larger, which requires a larger installation position for the antenna, which is not conducive to the installation of the antenna.

[0140] The distance D3 between the high-frequency support 21 and the low-frequency support 31 can be set to 11 mm, 12 mm, 13 mm, 14 mm, or 15 mm, or any value between any two of them. The distance D3 between the high-frequency support 21 and the low-frequency support 31 is not limited in this application.

[0141] In some embodiments, the floor 1 includes a medium substrate 13 and a coating layer 14. The coating layer 14 covers the surface of the medium substrate 13.

[0142] In some embodiments, the coating layer 14 only covers the surface of one side of the medium substrate 13 where the high-frequency radiator 2 and the low-frequency radiator 3 are configured. Alternatively, the coating layer 14 can cover the surface of each side of the medium substrate 13.

[0143] The medium substrate 13 can be made of FR4 material (Flame-Retardant, flame-retardant material). The coating layer 14 can be a metal coating layer 14, for example, copper is selected as the coating layer 14. Based on the selection of the medium substrate 13 and the coating layer 14 materials, the use of expensive ceramic materials and the like can be avoided, thereby reducing the cost of the antenna.

[0144] The aforementioned high-frequency substrate 211 and low-frequency substrate 311 can be made of PC (Polycarbonate, polycarbonate), ABS (Acrylonitrile Butadiene Styrene, Acrylonitrile-Butadiene-Styrene Copolymer) and other plastic materials. Based on the material selection of the high-frequency substrate 211 and the low-frequency substrate 311, the cost of the antenna can also be reduced

[0145] In a second aspect, as shown in FIG. 11, the application also provides an electronic device. The electronic device includes the antenna in the above embodiments. The electronic device has all the beneficial effects of the above-mentioned antenna, which will not be repeated here.

[0146] In a third aspect, as shown in FIG. 12, the application also provides a vehicle. The vehicle includes the electronic device in the above embodiments. The vehicle has all the beneficial effects of the above-mentioned electronic device, which will not be repeated here.

[0147] The vehicle can be a fuel automobile, a plug-in hybrid electric vehicle, or a new energy vehicle, etc., which is not limited in this application.

Claims

1. An antenna, comprising: a ground plate (1) provided with at least two feeding points; a radiating mechanism provided on the ground plate (1), the radiating mechanism having at least two feeding branches, each of the feeding branches being electrically connected to one of the feeding points.

2. The antenna of claim 1, wherein, The radiating mechanism comprises high-frequency radiating elements (2) and low-frequency radiating elements (3) arranged at intervals, the at least two feeding branches comprise high-frequency feeding branches (221) and low-frequency feeding branches (321), the high-frequency feeding branches (221) are arranged on the high-frequency radiating elements (2), and the low-frequency feeding branches (321) are arranged on the low-frequency radiating elements (3).

3. The antenna of claim 2, wherein, The high-frequency radiating element (2) comprises: a high-frequency support (21) connected to the ground plate (1); a high-frequency radiating body (22) arranged on one side of the high-frequency support (21) facing the low-frequency radiating element (3), or arranged on the other side of the high-frequency support (21) facing away from the low-frequency radiating element (3).

4. The antenna of claim 3, wherein, The high-frequency support (21) comprises four high-frequency substrates (211) connected in a head-to-tail manner, the four high-frequency substrates (211) form a high-frequency support (21) in a square frame structure, and each of the high-frequency substrates (211) is provided with the high-frequency radiating body (22).

5. The antenna of claim 4, wherein, The at least two feeding points comprise a high-frequency feeding point (11) formed on the ground plate (1), the high-frequency radiating body (22) comprises a high-frequency radiating branch (222) and the high-frequency feeding branch (221), the high-frequency feeding branch (221) is electrically connected to the high-frequency feeding point (11), and the high-frequency radiating branch (222) is electrically connected to one end of the high-frequency feeding branch (221) away from the high-frequency feeding point (11).

6. The antenna of claim 5, wherein, The high-frequency feeding branch (221) is perpendicular to the ground plate (1), and the length of the high-frequency feeding branch (221) is L1, which satisfies 10 mm≤L1≤12 mm.

7. The antenna according to claim 5 or 6, wherein, The high-frequency radiating branch (222) is parallel to the ground plate (1), and the length of the high-frequency radiating branch (222) is L2, which satisfies 22 mm≤L2≤27 mm.

8. The antenna according to any one of claims 5 to 7, wherein, The high-frequency radiating body (22) further comprises: a high-frequency grounding branch (223) having one end electrically connected to the ground plate (1) and the other end electrically connected to the high-frequency radiating branch (222).

9. The antenna of claim 8, wherein, The high-frequency grounding branch (223) is perpendicular to the ground plate (1), and the length of the high-frequency grounding branch (223) is L3, which satisfies 10 mm≤L3≤12 mm.

10. The antenna according to claim 8 or 9, wherein, The distance between the high-frequency grounding branch (223) and the high-frequency feeding branch (221) is X1, which satisfies 5.5 mm≤X1≤7.5 mm.

11. The antenna according to any one of claims 8 to 10, wherein, The high-frequency radiating body (22) further comprises: a high-frequency loading branch (224) arranged parallel to the high-frequency radiating branch (222), the high-frequency loading branch (224) is located at a position of the high-frequency substrate (211) away from the ground plate (1).

12. The antenna of claim 11, wherein, The length of the high-frequency loading branch (224) is L4, which satisfies 46 mm≤L4≤50 mm.

13. The antenna according to claim 11 or 12, wherein, The high-frequency loading branch (224) has a first end (2241) and a second end (2242) at opposite ends in the length direction, and the high-frequency radiation branch (222) has a third end (2221) away from the high-frequency feeding branch (221), and the first end (2241) is located between the high-frequency ground branch (223) and the third end (2221) in the projection of the high-frequency substrate (211) in the height direction, and the distance between the second end (2242) and the edge of the high-frequency substrate (211) is X2, which satisfies: X2≥4mm.

14. The antenna according to any one of claims 11 to 13, wherein, The distance between the high-frequency loading branch (224) and the high-frequency radiation branch (222) is X3, which satisfies: 1mm≤X3≤2mm.

15. The antenna according to any one of claims 5 to 14, wherein, The floor (1) is provided with four high-frequency feeding points (11), and each high-frequency feeding point (11) corresponds to a high-frequency feeding branch (221), wherein the four high-frequency feeding points (11) are centrally symmetrically distributed along the center point of the floor (1).

16. The antenna of claim 15, wherein, The floor (1) is provided with a first power division phase shifter (15), and the four high-frequency feeding points (11) are electrically connected with the first power division phase shifter (15) and are configured to feed the four high-frequency feeding points (11) with equal amplitude.

17. The antenna according to any one of claims 3 to 16, wherein, The low-frequency radiator (3) comprises: A low-frequency support (31) connected with the floor (1), and the low-frequency support (31) is arranged in a spaced manner with the high-frequency support (21); A low-frequency radiator (32) arranged on one side of the low-frequency support (31) facing the high-frequency support (21), or arranged on one side of the low-frequency support (31) away from the high-frequency support (21).

18. The antenna of claim 17, wherein, The low-frequency support (31) comprises four low-frequency substrates (311) connected in series, and the four low-frequency substrates (311) form a low-frequency support (31) in the form of a square frame structure, wherein each low-frequency substrate (311) is provided with the low-frequency radiator (32).

19. The antenna of claim 18, wherein, The at least two feeding points comprise a low-frequency feeding point (12) configured on the floor (1), and the low-frequency radiator (32) comprises a low-frequency feeding branch (321) and a low-frequency radiation branch (322), wherein the low-frequency feeding branch (321) is electrically connected with the low-frequency feeding point (12), and the low-frequency radiation branch (322) is electrically connected with one end of the low-frequency feeding branch (321) away from the low-frequency feeding point (12).

20. The antenna of claim 19, wherein, The low-frequency feeding branch (321) is perpendicular to the floor (1), and the length of the low-frequency feeding branch (321) is L5, which satisfies: 5mm≤L5≤7mm.

21. The antenna according to claim 19 or 20, wherein, The low-frequency radiation branch (322) is parallel to the floor (1), and the length of the low-frequency radiation branch (322) is L6, which satisfies: 27mm≤L6≤33mm.

22. The antenna according to any one of claims 19 to 21, wherein, The low-frequency radiator (32) further comprises: A low-frequency ground branch (323) having one end electrically connected with the floor (1) and the other end electrically connected with the low-frequency radiation branch (322).

23. The antenna of claim 22, wherein, The low-frequency ground branch (323) is perpendicular to the floor (1), and the length of the low-frequency ground branch (323) is L7, which satisfies: 5mm≤L7≤7mm.

24. The antenna according to claim 22 or 23, wherein, The spacing between the low-frequency ground branch (323) and the low-frequency feeding branch (321) is X4, which satisfies: 3.5mm≤X4≤5.5mm.

25. The antenna according to any one of claims 22 to 24, wherein, The low-frequency radiator (32) further comprises: A low-frequency loading branch (324) is arranged in parallel with the low-frequency radiation branch (322), and the low-frequency loading branch (324) is located at a position of the low-frequency substrate (311) away from the floor (1).

26. The antenna of claim 25, wherein, The length of the low-frequency loading branch (324) is L8, which satisfies: 68mm≤L8≤77mm.

27. The antenna according to claim 25 or 26, wherein, The opposite ends of the low-frequency loading branch (324) in the length direction are a fourth end (3241) and a fifth end (3242), respectively, and the low-frequency radiation branch (322) has a sixth end (3221) away from the low-frequency feeding branch (321). The projection of the low-frequency substrate (311) in the height direction, the fourth end (3241) is located between the low-frequency ground branch (323) and the sixth end (3221), and the spacing between the fifth end (3242) and the edge of the low-frequency substrate (311) is X5, which satisfies: X5≥4mm.

28. The antenna according to any one of claims 25 to 27, wherein, The spacing between the low-frequency loading branch (324) and the low-frequency radiation branch (322) is X6, which satisfies: 1mm≤X6≤2mm.

29. The antenna according to any one of claims 19 to 28, wherein, Four low-frequency feeding points (12) are arranged on the floor (1), and each low-frequency feeding point (12) corresponds to a low-frequency feeding branch (321), wherein the four low-frequency feeding points (12) are centrally symmetrically distributed along the center point of the floor (1).

30. The antenna according to claim 29, wherein, A second power division phase shifter (16) is arranged on the floor (1), and the four low-frequency feeding points (12) are electrically connected to the second power division phase shifter (16) and are configured to feed the four low-frequency feeding points (12) with equal amplitude.

31. The antenna according to any one of claims 17 to 30, wherein, The height of the high-frequency support (21) is H1, and the height of the low-frequency support (31) is H2, which satisfies: H1>H2.

32. The antenna according to claim 31, wherein, The high-frequency support (21) is provided with a high-frequency radiation branch (222), and the low-frequency support (31) is provided with a low-frequency radiation branch (322), and the high-frequency radiation branch (222) and the low-frequency radiation branch (322) are parallel to the floor (1), the spacing between the high-frequency radiation branch (222) and the floor (1) is D1, and the spacing between the low-frequency radiation branch (322) and the floor (1) is D2, which satisfies: D1>D2.

33. The antenna according to claim 32, wherein, The high-frequency support (21) is located in the area enclosed by the low-frequency support (31), wherein the spacing between the high-frequency support (21) and the low-frequency support (31) is D3, which satisfies: 11mm≤D3≤15mm.

34. The antenna according to any one of claims 1 to 33, wherein, The floor (1) comprises: A dielectric substrate (13); A coating (14) covering the surface of the dielectric substrate (13).

35. An electronic device comprising the antenna of any one of claims 1 to 34.

36. A vehicle comprising the electronic device of claim 35.

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