Antenna assembly and vehicle

Abstract

The invention provides an antenna assembly and a vehicle. The antenna assembly includes one or more antenna modules. The antenna module comprises a substrate, a first antenna, a second antenna, a third antenna and a fourth antenna. The first antenna, the second antenna, the third antenna and the fourth antenna are arranged on the first surface and are electrically connected with the grounding region; the projection of the first antenna on the first surface falls into the first clearance zone; the first antenna works in a first frequency band; the projection of the second antenna on the first surface falls into the second clearance zone; the second antenna works in a second frequency band; the projection of the third antenna on the first surface falls into a third clearance zone; the third antenna works in a third frequency band; the projection of the fourth antenna on the first surface falls into the grounding area; the fourth antenna works in a fourth frequency band. By arranging the antenna modules with the same structure, the number and installation positions of the antenna modules can be adjusted according to actual requirements, so that the antenna assembly is easy to expand and adjust, rapid optimization is facilitated, and the design efficiency and flexibility are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of antenna assemblies, in particular to an antenna assembly and a vehicle. BACKGROUND

[0002] The application of 5G communication technology and WIFI 6E can greatly improve the communication performance of the Internet of Vehicles. In order to meet the communication needs of vehicles, the design of vehicle-mounted antennas needs to integrate LTE, 5G-NR and GNSS operating frequency bands, which makes it difficult to miniaturize the size of the antenna assembly. At the same time, considering the communication performance of the antenna, the antenna usually needs to be installed outside the vehicle, such as shark fin antenna assemblies and whip antenna assemblies on the top of the vehicle, which are easy to be damaged and affect the overall aesthetics of the vehicle. SUMMARY

[0003] In order to solve the problems in the prior art, the present application provides an antenna assembly and a vehicle to improve the design efficiency and flexibility of the antenna assembly.

[0004] The present application provides an antenna assembly, which comprises one or more antenna modules.

[0005] The antenna module comprises a substrate, a first antenna, a second antenna, a third antenna and a fourth antenna; a first surface of the substrate is provided with a first clearance area, a second clearance area, a third clearance area and a grounding area;

[0006] The first antenna, the second antenna, the third antenna and the fourth antenna are all arranged on the first surface and are all electrically connected with the grounding area; the projection of the first antenna on the first surface falls into the first clearance area; the first antenna works at a first frequency band; the projection of the second antenna on the first surface falls into the second clearance area; the second antenna works at a second frequency band; the projection of the third antenna on the first surface falls into the third clearance area; the third antenna works at a third frequency band; the projection of the fourth antenna on the first surface falls into the grounding area; the fourth antenna works at a fourth frequency band.

[0007] In an embodiment, the first frequency band comprises 1710-2700Mhz and 3300-3800Mhz; the second frequency band comprises 698-960Mhz, 1710-2700Mhz and 3300-3800Mhz; the third frequency band comprises 2400-2500Mhz and 5150-7125Mhz; the center frequency point of the fourth frequency band comprises 1176.45Mhz and 1575.42Mhz.

[0008] In an embodiment, the first antenna comprises a first feeding portion, a first grounding portion, a first radiation portion and a second radiation portion.

[0009] The first feeding portion and the first grounding portion are both electrically connected with the grounding area, a first end of the first radiating portion is electrically connected with the first feeding portion and the first grounding portion, and the second radiating portion is electrically connected with the first end of the first radiating portion; the first radiating portion and the second radiating portion are both L-shaped.

[0010] In an embodiment, the second antenna comprises a second feeding portion, a second grounding portion, a third radiating portion, a fourth radiating portion and a fifth radiating portion.

[0011] The second feeding portion and the second grounding portion are both electrically connected with the grounding area, a first end of the third radiating portion is electrically connected with the second feeding portion, a first end of the fourth radiating portion is electrically connected with the second feeding portion, and a first end of the fifth radiating portion is electrically connected with the second feeding portion; the third radiating portion, the fourth radiating portion and the fifth radiating portion are all L-shaped.

[0012] In an embodiment, the third antenna comprises a third feeding portion, a third grounding portion, a sixth radiating portion and a seventh radiating portion.

[0013] The third feeding portion is electrically connected with the grounding area; a first end of the third grounding portion is electrically connected with the third feeding portion, a second end of the third grounding portion is electrically connected with the grounding area, and the third grounding portion is L-shaped; a first end of the sixth radiating portion is electrically connected with the third feeding portion, and a first end of the seventh radiating portion is electrically connected with the third feeding portion.

[0014] In an embodiment, the fourth antenna is a ceramic antenna; and the fourth antenna is fixedly arranged on the grounding area.

[0015] In an embodiment, the first surface is a rectangular surface, the first clearance area is located at a first side edge region of the first surface, the second clearance area is located at a second side edge region of the first surface, the third clearance area is located at a third side edge region of the first surface, and the grounding area is located at a fourth side edge region of the first surface; the first side edge region is arranged opposite to the third side edge region, and the second side edge region is arranged opposite to the fourth side edge region.

[0016] In an embodiment, the antenna assembly comprises a first antenna module and a second antenna module; a substrate of the first antenna module is integrally formed with a substrate of the second antenna module, and a grounding area on the substrate of the first antenna module and a grounding area on the substrate of the second antenna module have a first preset interval therebetween.

[0017] In an embodiment, the first antenna module and the second antenna module are arranged in a central symmetry, and an area in the first preset interval is a clearance area.

[0018] The application also provides a vehicle comprising the antenna assembly.

[0019] The application can adjust the number and installation position of the antenna modules according to actual requirements by setting the antenna modules with the same structure, so that the antenna assembly is easy to expand and adjust, fast to optimize, and high in design efficiency and flexibility. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 The figure is a structural diagram of the antenna module of an embodiment of the application.

[0021] Figure 2 The figure is a structural diagram of the antenna assembly of an embodiment of the application.

[0022] Figure 3 The figure is a structural diagram of the first antenna of an embodiment of the application.

[0023] Figure 4 The figure is a structural diagram of the second antenna of an embodiment of the application.

[0024] Figure 5 The figure is a structural diagram of the third antenna of an embodiment of the application.

[0025] Figure 6 The figure is a structural diagram of the vehicle of an embodiment of the application.

[0026] MAIN ELEMENT SYMBOL EXPLANATION

[0027] Antenna assembly 10 Substrate 110

[0028] First antenna 120 Second antenna 130

[0029] Third antenna 140 Fourth antenna 150

[0030] First feeding portion 121 First grounding portion 122

[0031] First radiating portion 123 Second radiating portion 124

[0032] Second grounding portion 132 Second feeding portion 131

[0033] Fourth radiating portion 134 Third radiating portion 133

[0034] Third grounding portion 142 Fifth radiating portion 135

[0035] Seventh radiating portion 144 Third feeding portion 141

[0036] First preset interval 160 Sixth radiating portion 143

[0037] Grounding area 114 Antenna module 100

[0038] Vehicle 1 mounting hole 115

[0039] First clearance area 111 Second clearance area 112

[0040] Third clearance area 113 First antenna module 101

[0041] Second antenna module 102

[0042] The following detailed description will further describe the present application in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0043] The following description will refer to the accompanying drawings to more fully describe the present application. The drawings show exemplary embodiments of the present application. However, the present application can be embodied in many different forms and should not be construed as limited to the exemplary embodiments set forth herein. These exemplary embodiments are provided so that this application will be thorough and complete, and fully convey the scope of the present application to those skilled in the art. Like reference numerals refer to like or similar components throughout the specification.

[0044] Referring to Figure 1 and Figure 2 , the present application proposes an antenna assembly 10, which comprises one or more antenna modules 100. The antenna module 100 comprises a substrate 110, a first antenna 120, a second antenna 130, a third antenna 140 and a fourth antenna 150; a first surface of the substrate 110 is provided with a first clearance area 111, a second clearance area 112, a third clearance area 113 and a grounding area 114; the first antenna 120, the second antenna 130, the third antenna 140 and the fourth antenna 150 are all arranged on the first surface of the substrate 110 and are all electrically connected with the grounding area 114; the projection of the first antenna 120 on the first surface of the substrate 110 falls into the first clearance area 111; the first antenna 120 works at a first frequency band; the projection of the second antenna 130 on the first surface of the substrate 110 falls into the second clearance area 112; the second antenna 130 works at a second frequency band; the projection of the third antenna 140 on the first surface of the substrate 110 falls into the third clearance area 113; the third antenna 140 works at a third frequency band; the projection of the fourth antenna 150 on the first surface of the substrate 110 falls into the grounding area 114; the fourth antenna 150 works at a fourth frequency band.

[0045] In this embodiment, the number of antenna modules 100 can be set according to actual communication needs. For example, when the demand for vehicle-mounted wireless communication increases, the number of antenna modules 100 can be increased accordingly. The antenna modules 100 of the present application have the same structure, are modular and expandable, and are easy to layout when the number of antenna modules 100 is increased or decreased. The modular antenna design helps to save antenna material costs and shorten the development cycle.

[0046] In an embodiment, the first surface is a rectangular surface, the first clearance area 111 is located at a first side edge region of the first surface, the second clearance area 112 is located at a second side edge region of the first surface, the third clearance area 113 is located at a third side edge region of the first surface, and the grounding area 114 is located at a fourth side edge region of the first surface. The first side edge region is arranged opposite to the third side edge region, and the second side edge region is arranged opposite to the fourth side edge region. The first clearance area 111, the second clearance area 112, and the third clearance area 113 are arranged around the grounding area 114. In this way, the first antenna 120, the second antenna 130, and the third antenna 140 can be distributed on the side of the grounding area 114, and the fourth antenna 150 can be arranged above the grounding area 114. The four antennas can maintain a certain distance to improve the isolation, and the space on the surface of the substrate 110 can also be reasonably utilized to realize miniaturization of the antenna assembly 10. The grounding area 114 can be a metal layer, such as a copper foil, laid on the surface of the substrate 110 or the inner layer of the substrate 110. The first clearance area 111, the second clearance area 112, and the third clearance area 113 can be regions on the surface of the substrate 110 from which the copper foil is removed. The shape of the substrate 110 can be set according to actual application, for example, as a square, polygon, circle, ellipse, etc.

[0047] In an embodiment, the substrate 110 can be square-shaped, and the grounding area 114 can also be square-shaped. One side edge of the grounding area 114 can coincide with one side edge of the substrate 110, and the other three side edges of the grounding area 114 have a spacing from the corresponding side edges of the substrate 110 for setting the first clearance area 111, the second clearance area 112, and the third clearance area 113. In this way, the miniaturized and flattened design can effectively reduce the volume of the antenna, making the installation position of the antenna assembly 10 more flexible. The positions of the first clearance area 111, the second clearance area 112, and the third clearance area 113 can be set according to actual application. For example, referring to Figure 1 , the first clearance area 111 and the second clearance area 112 can be arranged at two corners of the substrate 110, and the third clearance area 113 can be arranged at a middle position of a side edge of the substrate 110. The spacing area left free can be used to set mounting holes 115 for fixed installation of the antenna assembly 10.

[0048] In an embodiment, the first antenna 120 can be a MIMO (multiple-in multiple-out) antenna, and the working frequency band includes 1710-2700 Mhz and 3300-3800 Mhz. The second antenna 130 can be a 5G antenna, and the working frequency band includes 698-960 Mhz, 1710-2700 Mhz and 3300-3800 Mhz. The third antenna 140 can be a WiFi antenna, and the working frequency band includes 2400-2500 Mhz and 5150-7125 Mhz. The fourth antenna 150 can be a GNSS (Global Navigation Satellite System) antenna, and the center frequency points include 1176.45 Mhz and 1575.42 Mhz.

[0049] In the embodiment, the four antennas can meet the requirements of multiple frequency bands, and the overlapping part of the working frequency bands between the four antennas is less, so that the interference between the antennas can be reduced.

[0050] Reference Figure 3 In an embodiment, the first antenna 120 includes a first feeding portion 121, a first grounding portion 122, a first radiating portion 123 and a second radiating portion 124. The first feeding portion 121 and the first grounding portion 122 are both electrically connected with the grounding area 114, the first end of the first radiating portion 123 is electrically connected with the first feeding portion 121 and the first grounding portion 122, and the second radiating portion 124 is electrically connected with the first end of the first radiating portion 123. The first radiating portion 123 and the second radiating portion 124 are both L-shaped.

[0051] In the embodiment, the first antenna 120 can be realized by using a metal material, for example, a steel sheet is integrally formed. The first radiating portion 123 is a high-frequency branch, and the second radiating portion 124 is a low-frequency branch. The first feeding signal is input through the first feeding portion 121, transmitted to the first radiating portion 123 and the second radiating portion 124 to generate radiation of the corresponding frequency band, and signal transmission is realized. The first radiating portion 123 and the second radiating portion 124 are both arranged in an L shape, so that the current path can be adjusted, and then the radiation magnetic field is adjusted to realize the radiation of the corresponding frequency band.

[0052] The first antenna 120 further includes a first fixing portion. The first fixing portion is bent and extended from the first radiating portion 123 to a direction parallel to the first feeding portion 121, and is fixed to the first clearance area 111. In this way, the first antenna 120 is designed with three supporting points for structural reinforcement, so that the stability of the first antenna 120 can be improved, and the first antenna 120 can be prevented from being shaken by collision during assembly, transportation and use.

[0053] Reference Figure 4In an embodiment, the second antenna 130 comprises a second feeding portion 131, a second grounding portion 132, a third radiating portion 133, a fourth radiating portion 134, and a fifth radiating portion 135. The second feeding portion 131 and the second grounding portion 132 are both electrically connected with the grounding area 114. The first end of the third radiating portion 133 is electrically connected with the second feeding portion 131. The first end of the fourth radiating portion 134 is electrically connected with the second feeding portion 131. The first end of the fifth radiating portion 135 is electrically connected with the second feeding portion 131. The third radiating portion 133, the fourth radiating portion 134, and the fifth radiating portion 135 are all L-shaped.

[0054] In the embodiment, the second antenna 130 can be implemented by using a metal material, for example, a steel sheet. The third radiating portion 133 is a high-frequency branch. The fourth radiating portion 134 is a medium-frequency branch. The fifth radiating portion 135 is a low-frequency branch. The second feeding signal is input via the second feeding portion 131 and transmitted to the third radiating portion 133, the fourth radiating portion 134, and the fifth radiating portion 135 to generate radiation of corresponding frequency bands, thereby realizing signal transmission. By setting the third radiating portion 133, the fourth radiating portion 134, and the fifth radiating portion 135 to be L-shaped, the current path can be adjusted, and then the magnetic field of radiation can be adjusted, thereby realizing radiation of corresponding frequency bands.

[0055] In the embodiment, the second end of the third radiating portion 133 can be bent downward to extend and form another L-shaped branch in a plane perpendicular to the plane where the fourth radiating portion 134 and the fifth radiating portion 135 are located. The side of the L-shaped branch is fixed to the second clearance area 112. In this way, the length of the third radiating portion 133 can be adjusted to realize adjustment of the radiation performance of the third radiating portion 133 in the high-frequency band. In addition, three supporting points can be designed for the second antenna 130 to strengthen the structure, thereby improving the stability of the second antenna 130 and avoiding shaking caused by collision during assembly, transportation, and use.

[0056] Referring to Figure 5 In an embodiment, the third antenna 140 comprises a third feeding portion 141, a third grounding portion 142, a sixth radiating portion 143, and a seventh radiating portion 144. The third feeding portion 141 is electrically connected with the grounding area 114. The first end of the third grounding portion 142 is electrically connected with the third feeding portion 141. The second end of the third grounding portion 142 is electrically connected with the grounding area 114. The third grounding portion 142 is L-shaped. The first end of the sixth radiating portion 143 is electrically connected with the third feeding portion 141. The first end of the seventh radiating portion 144 is electrically connected with the third feeding portion 141.

[0057] In this embodiment, the third antenna 140 can be implemented by metal material, for example, by steel sheet integrated molding. The sixth radiation part 143 is a high-frequency branch, and the seventh radiation part 144 is a low-frequency branch. The third feeding signal is input via the third feeding part 141 and transmitted to the sixth radiation part 143 and the seventh radiation part 144 to generate radiation of corresponding frequency bands and realize signal transmission. The sixth radiation part 143 can be provided in the shape of a long strip or L-shaped, and the seventh radiation part 144 can be provided in the shape of L-shaped to adjust the current path and realize radiation of corresponding frequency bands.

[0058] The seventh radiation part 144 can also be bent downward to extend and form another L-shaped branch in a plane perpendicular to the plane where the sixth radiation part 143 is located, and the side edge of the L-shaped branch is fixed to the third clearance area 113. In this way, the length of the seventh radiation part 144 can be adjusted to realize adjustment of the radiation performance of the seventh radiation part 144 in the high-frequency band. In addition, the third antenna 140 is designed with three supporting points for structural reinforcement, which can improve the stability of the second antenna 130 and avoid shaking due to collision during assembly, transportation and use.

[0059] In an embodiment, the fourth antenna 150 can be implemented by a ceramic antenna. The fourth antenna 150 includes a fourth feeding part and a fourth grounding part. The fourth feeding signal is input via the fourth feeding part to excite the ceramic antenna to generate radiation of corresponding frequency bands and realize signal transmission.

[0060] In an embodiment, the substrates 110 of the plurality of antenna modules 100 are integrated.

[0061] In this embodiment, the number of antenna modules 100 can be set according to actual communication needs, for example, two, three, four or the like, which is not limited herein. The plurality of antenna modules 100 can use the same substrate 110 to save materials.

[0062] In an embodiment, the antenna assembly 10 includes a first antenna module 101 and a second antenna module 102; the substrate 110 of the first antenna module 101 and the substrate 110 of the second antenna module 102 are integrated. The grounding areas 114 on the substrate 110 of the first antenna module 101 and the grounding areas 114 on the substrate 110 of the second antenna module 102 have a first preset interval 160, and the area within the first preset interval 160 is a clearance area.

[0063] In this embodiment, by setting the first preset interval 160, the first antenna module 101 and the second antenna module 102 are not grounded, and the isolation of the first antenna module 101 and the second antenna module 102 is improved.

[0064] In an embodiment, the first antenna module 101 and the second antenna module 102 are arranged in a central symmetric manner.

[0065] In the embodiment, the side edge on which the ground region 114 on the substrate 110 of the first antenna module 101 is located is adjacent to the side edge on which the ground region 114 on the substrate 110 of the second antenna module 102 is located, so that the first antenna module 101 and the second antenna module 102 with the same structure are centrally symmetrical. In this way, the first antenna 120 of the first antenna module 101 and the first antenna 120 of the second antenna module 102, the second antenna 130 of the first antenna module 101 and the second antenna 130 of the second antenna module 102, and the third antenna 140 of the first antenna module 101 and the third antenna 140 of the second antenna module 102 can maintain a certain distance, reducing the interference between antennas in the same frequency band. Moreover, the ground region 114 of the first antenna module 101 and the ground region 114 of the second antenna module 102 have a first preset interval 160, which can improve the isolation of the first antenna module 101 and the second antenna module 102.

[0066] In an embodiment, the substrate 110 further includes a mounting hole 115. The mounting hole 115 can be arranged in the corner region or the side edge region of the substrate 110 to avoid the clearance region and the ground region 114, so as to reduce the interference with the antenna and improve the stability of the antenna assembly 10. For example, the substrate 110 includes three mounting holes 115. The three mounting holes 115 are arranged in the corner close to the first antenna 120, the corner close to the third antenna 140, and the interval region between the first antenna 120 and the second antenna 130, respectively.

[0067] The mounting hole 115 can cooperate with a mounting member such as a screw to fix the antenna assembly 10. In this way, by designing the mounting hole 115 at the key position, the reliability of the antenna assembly 10 can be improved, the influence of vibration on the antenna can be reduced, and the communication quality of the antenna assembly 10 can be ensured.

[0068] In an embodiment, the antenna assembly 10 further includes a shell, and the shell and the substrate 110 enclose a receiving cavity, and the first surface of the substrate 110 faces the receiving cavity.

[0069] In the embodiment, the shell can protect the antenna in the receiving cavity. The shape of the shell can be designed according to the shape of the substrate 110. For example, when the substrate 110 is square, the shell can be arranged as a quadrangular prism. In this way, the antenna assembly 10 can be installed at different positions in the conventional quadrangular prism shape, improving the flexibility of the antenna assembly 10.

[0070] In an embodiment, the number of the shell can be one or more. For example, when multiple antenna modules 100 use the same substrate 110, the number of the shell can be one. When the substrates 110 of the multiple antenna modules 100 exist independently, the number of the shell can be multiple, so as to facilitate the installation of the multiple antenna modules 100 at different positions.

[0071] The present application can adjust the number and installation position of the antenna module 100 according to actual needs by setting the antenna module 100 with the same structure, so that the antenna assembly 10 is easy to expand and adjust, facilitating rapid optimization, improving design efficiency and flexibility.

[0072] Referring to Figure 6 The present application also provides a vehicle 1 comprising the above-mentioned antenna assembly 10.

[0073] The detailed structure of the antenna assembly 10 can refer to the above-mentioned embodiments, which will not be described here again. It can be understood that, since the above-mentioned antenna assembly 10 is used in the vehicle 1 of the present application, the embodiments of the vehicle 1 of the present application include all the technical solutions of all the embodiments of the above-mentioned antenna assembly 10, and the technical effects achieved are also completely the same, which will not be described here again.

[0074] In an embodiment, the vehicle 1 comprises a front pillar, a rear pillar, a bumper, a fender, a spoiler. The antenna assembly 10 comprises one or more antenna modules 100, and the antenna module 100 is installed on any one of the front pillar, the rear pillar, the bumper, the fender and the spoiler.

[0075] In the present embodiment, the number and installation position of the antenna module 100 can be flexibly adjusted according to actual needs. For example, considering the signal receiving quality, the antenna module 100 can be installed on the roof. The antenna module 100 can form a flat quadrangular body with the shell, and the antenna module 100 can also be installed in the roof. In this way, the antenna module 100 can be hidden in the vehicle, which has no effect on the appearance of the vehicle 1, maintains the smooth lines of the vehicle body, and improves the aesthetics of the vehicle 1.

[0076] Alternatively, in a vehicle 1 with a panoramic sunroof, the antenna module 100 can also be installed at any position of the front pillar, the rear pillar, the bumper, the fender, the spoiler, etc. The communication quality is guaranteed, and the stealth of the antenna module 100 is realized.

[0077] When the communication demand of the vehicle 1 increases, the number of the antenna module 100 can be increased accordingly. For example, the number of the antenna module 100 is two. The two antenna modules 100 can be installed as a whole at one position, or can be installed at different positions of the vehicle 1 respectively. In this way, the modular antenna design makes the antenna assembly 10 easy to expand and adjust, which can improve the design efficiency and flexibility.

[0078] In the foregoing description, specific embodiments of the application have been described in some detail. It will be appreciated that those skilled in the art will be able to devise numerous alternative arrangements and modifications to the specific embodiments of the application without departing from the scope of the application. These alternative arrangements and modifications will fall within the scope of the application as defined in the following claims.

Claims

1. An antenna assembly, characterized in that, The antenna assembly includes one or more antenna modules; The antenna module includes a substrate, a first antenna, a second antenna, a third antenna, and a fourth antenna; the first surface of the substrate is provided with a first clearance area, a second clearance area, a third clearance area, and a grounding area; The first antenna, the second antenna, the third antenna, and the fourth antenna are all disposed on the first surface and are all electrically connected to the grounding area; the projection of the first antenna on the first surface falls into the first clearance area; the first antenna operates in the first frequency band. The projection of the second antenna onto the first surface falls into the second clearance area; the second antenna operates in the second frequency band; The projection of the third antenna onto the first surface falls into the third clearance area; the third antenna operates in the third frequency band; the projection of the fourth antenna onto the first surface falls into the contact area; the fourth antenna operates in the fourth frequency band.

2. The antenna assembly as claimed in claim 1, characterized in that, The first frequency band includes 1710–2700 MHz and 3300–3800 MHz; the second frequency band includes 698–960 MHz, 1710–2700 MHz, and 3300–3800 MHz; the third frequency band includes 2400–2500 MHz and 5150–7125 MHz; and the center frequency of the fourth frequency band includes 1176.45 MHz and 1575.42 MHz.

3. The antenna assembly as described in claim 1, characterized in that, The first antenna includes a first feed section, a first ground section, a first radiating section, and a second radiating section; Both the first power supply section and the first grounding section are electrically connected to the grounding section. The first end of the first radiating section is electrically connected to both the first power supply section and the first grounding section. The second radiating section is electrically connected to the first end of the first radiating section. Both the first radiating section and the second radiating section are L-shaped.

4. The antenna assembly as claimed in claim 1, characterized in that, The second antenna includes a second feed section, a second ground section, a third radiating section, a fourth radiating section, and a fifth radiating section; The second power supply section and the second grounding section are both electrically connected to the grounding section. The first end of the third radiating section is electrically connected to the second power supply section. The first end of the fourth radiating section is electrically connected to the second power supply section. The first end of the fifth radiating section is electrically connected to the second power supply section. The third radiating section, the fourth radiating section and the fifth radiating section are all L-shaped.

5. The antenna assembly as claimed in claim 1, characterized in that, The third antenna includes a third feed section, a third ground section, a sixth radiating section, and a seventh radiating section; The third power supply section is electrically connected to the grounding section; the first end of the third grounding section is electrically connected to the third power supply section, the second end of the third grounding section is electrically connected to the grounding section, and the third grounding section is L-shaped; the first end of the sixth radiating section is electrically connected to the third power supply section, and the first end of the seventh radiating section is electrically connected to the third power supply section.

6. The antenna assembly as claimed in claim 1, characterized in that, The fourth antenna is a ceramic antenna; the fourth antenna is fixedly installed in the grounding area.

7. The antenna assembly as claimed in claim 1, characterized in that, The first surface is a rectangular surface. The first clearance area is located in the first side area of ​​the first surface. The second clearance area is located in the second side area of ​​the first surface. The third clearance area is located in the third side area of ​​the first surface. The contact area is located in the fourth side area of ​​the first surface. The first side area and the third side area are arranged opposite to each other. The second side area and the fourth side area are arranged opposite to each other.

8. The antenna assembly as claimed in claim 1, characterized in that, The antenna assembly includes a first antenna module and a second antenna module; the substrate of the first antenna module and the substrate of the second antenna module are integrally formed, and there is a first preset interval between the grounding area on the substrate of the first antenna module and the grounding area on the substrate of the second antenna module.

9. The antenna assembly as claimed in claim 8, characterized in that, The first antenna module and the second antenna module are arranged symmetrically at the center, and the area within the first preset interval is a clearance area.

10. A vehicle, characterized in that, The vehicle includes an antenna assembly as described in any one of claims 1 to 9.

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