Communication antenna and vehicle having the same

Abstract

The invention relates to a communication antenna and a vehicle with the communication antenna, the communication antenna comprises a shell with an opening, a base, a ceramic substrate and a connector, the base is clamped at the opening, an accommodating cavity is defined between the shell and the base, the base is connected with a mounting part, and the mounting part is used for mounting the communication antenna on the vehicle; the ceramic substrate is positioned in the accommodating cavity; the ceramic substrate comprises a ceramic antenna and a substrate body, the ceramic antenna is arranged on the substrate body, and an antenna radiating surface is formed on the surface of the substrate body; and one end of the connector penetrates through the base and is electrically connected with the ceramic antenna. According to the invention, the size is smaller, the integration level is better, the communication antenna adopts an assembled structure and has extremely high structural stability, and the communication antenna can be mounted on a rearview mirror of a vehicle.

Description

Technical Field

[0001] The present invention relates to the field of communication technology, and in particular to a communication antenna and a vehicle having the communication antenna. Background Art

[0002] The emergence of self-driving cars and the internet has placed higher demands on wireless connectivity and communications, especially the vehicle-to-everything (V2X) communication technology being promoted by the automotive industry. This technology allows vehicles to communicate with each other and understand the real road conditions around them, thereby ensuring optimal driving safety.

[0003] At present, antennas that can achieve V2X communication have disadvantages such as large size, large space occupation, and poor installation stability. In addition, the installation position of communication antennas currently used in vehicles is not fixed (mostly installed on the front crossbeam of the vehicle), which is not only inconvenient for disassembly and assembly, but also difficult to check their working status and installation stability.

[0004] Therefore, the present invention provides a communication antenna and a vehicle having the communication antenna to overcome the defects of the prior art. Summary of the Invention

[0005] The purpose of the present invention is to provide a communication antenna with a smaller size and better integration. The communication antenna itself adopts an assembled structure and has extremely strong structural stability. It can be exposed on the outside of the vehicle for installation, thereby improving communication capabilities and facilitating disassembly and assembly.

[0006] Another object of the present invention is to provide a vehicle with a communication antenna, which has an installation position on the rearview mirror of the vehicle and can be used for installing the communication antenna. The setting position of the communication antenna not only meets the requirements of easy disassembly and assembly and inspection of the antenna at any time, but also does not affect the normal operation of other components on the vehicle, thereby ensuring driving safety.

[0007] The purpose of the present invention can be achieved by adopting the following scheme:

[0008] The present invention provides a communication antenna, comprising:

[0009] a housing having an opening;

[0010] A base, the base is snap-fitted to the opening and encloses a receiving cavity between the housing and the base, and a mounting member is connected to the base, the mounting member being used to mount the communication antenna on a vehicle;

[0011] a ceramic substrate, the ceramic substrate being located in the accommodating cavity and pressed tightly between the inner wall of the shell and the base;

[0012] The ceramic substrate includes a ceramic antenna and a substrate body, wherein the ceramic antenna is arranged on the substrate body, and the surface of the substrate body forms an antenna radiation surface;

[0013] A connector is provided, one end of which passes through the base and is electrically connected to the ceramic antenna.

[0014] In a preferred embodiment of the present invention, the base body is a plate-shaped structure, at least a portion of the ceramic antenna is exposed on the surface of the base body, and the ceramic antenna is fixed to the connector by welding.

[0015] In a preferred embodiment of the present invention, the base includes a mounting plate, a connecting plate is provided on one side of the mounting plate near the edge, one end of the connecting plate is connected to the mounting plate, and the other end of the connecting plate extends in a direction away from the plate surface and is provided with a first clamping block at the other end of the connecting plate;

[0016] A clamping hole is provided on the side wall of the housing, the mounting plate is embedded in the opening of the base, and the connecting plate extends into the accommodating cavity until the first clamping block is clamped with the clamping hole.

[0017] In a preferred embodiment of the present invention, a positioning block is provided on one side surface of the mounting plate near a corner. When the housing is connected to the base, the positioning block is located in the accommodating cavity and abuts against the inner wall of the housing.

[0018] In a preferred embodiment of the present invention, the base further comprises an extension plate, one end of the extension plate is connected to the mounting plate, the other end of the extension plate extends in a direction away from the mounting plate, and the mounting member is detachably mounted on the extension plate;

[0019] The extension plate has two protrusions set at intervals, and the two protrusions have a slide groove respectively. The openings of the two slide grooves are opposite to each other to form a slide extending in one direction between the two protrusions. The mounting part has a slide plate that cooperates with the slide groove. The two opposite edges of the slide plate can be slidably embedded in the corresponding slide groove, and the slide plate slides into the slide groove.

[0020] In a preferred embodiment of the present invention, an elastic top block is provided on the extension plate and located between the two protrusions. When the slide slides into the slideway, the elastic top block presses against one side of the slide surface so that at least one side of the outer wall of the slide is against at least one side of the inner wall of the slideway.

[0021] In a preferred embodiment of the present invention, the wall surface of the elastic top block facing the slide is a sloped surface, and the sloped surface extends obliquely from bottom to top along the direction in which the slide slides into the slideway.

[0022] In a preferred embodiment of the present invention, a mounting column is provided on the extension plate, and a second clamping block is provided on the outer wall of the mounting column;

[0023] The communication antenna also includes a mounting base connected to the rearview mirror of the vehicle or being a part of the rearview mirror of the vehicle, the mounting base having a mounting hole, the mounting post being inserted into the mounting hole, and the second clamping block being clamped to the edge of the mounting hole.

[0024] In a preferred embodiment of the present invention, a suction cup is provided at the connection position between the extension plate and the mounting post. When the mounting post is inserted into the mounting hole, the suction cup is fixed to the outer wall of the mounting seat by adsorption.

[0025] The present invention provides a vehicle, comprising the above-mentioned communication antenna, wherein the communication antenna is installed on a rearview mirror of the vehicle.

[0026] As described above, the communication antenna and the vehicle having the communication antenna of the present invention have the following characteristics and advantages:

[0027] The housing and the base are engaged with each other to form a cavity for accommodating the ceramic antenna. The ceramic antenna provided on the base body is placed in the cavity and the base body is pressed against the inner wall of the housing by the cooperation of the base, thereby ensuring the stable installation of the ceramic antenna. The structure of the communication antenna in this application not only has a smaller volume and a higher degree of integration, but also ensures extremely strong structural stability for the installation of the ceramic antenna.

[0028] The ceramic antenna is mounted on a base body, with the base body's surface forming the antenna's radiating surface to enhance the antenna's gain. A connector electrically connects the ceramic antenna to enable wireless signal transmission. This application also includes a mounting member attached to the base, which allows the antenna to be mounted on a vehicle (e.g., on a rearview mirror), improving communication capabilities and facilitating assembly and disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The following drawings are intended only to illustrate and explain the present invention and are not intended to limit the scope of the present invention.

[0030] Figure 1 Schematic diagram of the structure of the communication antenna of the present invention;

[0031] Figure 2 An exploded view of the communication antenna of the present invention;

[0032] Figure 3 Schematic diagram of the structure of the ceramic substrate in the communication antenna of the present invention;

[0033] Figure 4This is a schematic structural diagram of the outer shell of the communication antenna of the present invention;

[0034] Figure 5 This is a schematic diagram of the disassembled state of the base, mounting member and mounting base of the communication antenna of the present invention;

[0035] Figure 6 This is a structural diagram of the base of the communication antenna of the present invention;

[0036] Figure 7 This is a schematic structural diagram of a mounting base in a communication antenna of the present invention;

[0037] Figure 8 This is a schematic diagram of the maximum gain of the communication antenna of the present invention at 5915 MHz;

[0038] Figure 9 This is the second schematic diagram of the maximum gain of the communication antenna of the present invention at 5915 MHz;

[0039] Figure 10 Schematic diagram of return loss of the communication antenna of the present invention at 5915 MHz.

[0040] The accompanying drawings in the present invention are:

[0041] 1. Housing; 101. Snap-in hole;

[0042] 102. Limit block; 103. Guide slide;

[0043] 2. Base; 201. Mounting plate;

[0044] 2011, connecting plate; 2012, first clamping block;

[0045] 202, epitaxial plate; 2021, bump;

[0046] 2022. slideway; 2023. elastic top block;

[0047] 203, positioning block; 204, through hole;

[0048] 205, positioning groove; 3, ceramic substrate;

[0049] 301. Ceramic antenna; 302. Base body;

[0050] 4. Connectors; 5. Mounting parts;

[0051] 501, slide plate; 5011, card slot;

[0052] 502, mounting column; 5021, second clamping block;

[0053] 503, suction cup; 6, mounting base;

[0054] 601. Mounting hole. DETAILED DESCRIPTION

[0055] The technical solution of the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. After reading the present invention, modifications of various equivalent forms of the present invention by those skilled in the art all fall within the scope defined by the claims attached to this application.

[0056] It should be noted that when an element is referred to as being "disposed on" another element, it may be directly on the other element or there may be an element centered thereon. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an element centered thereon. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementations.

[0057] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application pertains. The terms used herein in the specification of this application are for the purpose of describing specific embodiments only and are not intended to limit this application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0058] To address the problem of large, fixed installation locations, complex wiring methods, and low gain in target communication antennas (such as V2X antennas), the present invention provides a small, compact communication antenna structure that can be installed in locations such as a vehicle's rearview mirror. It is easy to assemble and disassemble, compact, and offers strong radiation capability, higher gain, stable signal transmission, and a longer service life. The following describes the present invention's communication antenna in detail:

[0059] Implementation Method 1

[0060] like Figures 1 to 8As shown, the present invention provides a communication antenna comprising a housing 1, a base 2, a ceramic substrate 3, and a connector 4. The housing 1 is a lid-like structure with an opening. The base 2 is snap-fitted to the opening of the housing 1, forming a housing cavity between the housing 1 and the base 2. A mounting member 5 is connected to the base 2, which is used to mount the communication antenna on a vehicle (e.g., on a rearview mirror). The ceramic substrate 3 is located within the housing cavity and compressed between the inner wall of the housing 1 and the base 2. One end of the connector 4 passes through the base 2 and is electrically connected to the ceramic antenna 301. The ceramic base 3 comprises a ceramic antenna 301 and a base body 302. The ceramic antenna 301 is disposed on the base body 302, and the surface of the base body 302 forms the antenna radiation surface.

[0061] In the present invention, the housing 1 and base 2 are snap-fitted together to form a cavity for accommodating the ceramic antenna 301. The ceramic antenna 301, mounted on the base body 302, is placed within the cavity. The inner wall of the housing 1 cooperates with the base 2 to compress the base body 302, thereby ensuring stable installation of the ceramic antenna 301. The structure of the communication antenna in this application not only has a smaller size and a higher degree of integration, but also ensures strong structural stability for the installation of the ceramic antenna 301. Furthermore, the present invention includes a mounting member 5 connected to the base 2, which allows the communication antenna to be mounted on a vehicle's rearview mirror, facilitating assembly and disassembly.

[0062] In the present invention, Figure 2 and Figure 3 As shown, the base body 302 is a rectangular plate-shaped structure. The ceramic antenna 301 is disposed on the base body 302, with at least a portion of the ceramic antenna 301 exposed on the surface of the base body 302. The base body 302 is made of ceramic, and the antenna radiation surface is formed on the surface of the base body 302, thereby achieving the purpose of improving the gain of the ceramic antenna 301. The connector is electrically connected to the ceramic antenna to achieve wireless signal transmission.

[0063] Furthermore, the size of the base body 302 may be, but is not limited to, a 6*6 mm square.

[0064] Furthermore, the ceramic antenna 301 is fixed to the connector 4 by welding.

[0065] In traditional signal transmission structures, communication antennas (such as V2X antennas) mostly adopt metal antennas. However, metal antennas have the disadvantages of being large in size and difficult to maintain processing consistency. Therefore, the present invention changes the design concept when designing the communication antenna, adopts ceramic as the base body 302, and arranges a ceramic antenna 301 on the base body 302. Ceramics have the characteristics of high temperature resistance, high mechanical strength, easy mass production and high material stability. They can make the communication antenna of the present invention have the characteristics of high consistency and mass production. In addition, the ceramic antenna 301 has a high dielectric constant, which can make the miniaturization of the communication antenna more operational.

[0066] Furthermore, a silver plating layer is formed on the surface of the base body 302 to improve the electrical properties of the ceramic.

[0067] In an optional embodiment of the present invention, Figure 2 、 Figure 5 and Figure 6 As shown, the base 2 includes a mounting plate 201, and a long strip-shaped connecting plate 2011 is provided on one side of the mounting plate 201 and near the edge. One end of the connecting plate 2011 is connected to the mounting plate 201, and the other end of the connecting plate 2011 extends in a direction away from the plate surface and a first clamping block 2012 in the shape of an oblique tooth is provided at the other end of the connecting plate 2011; a clamping hole 101 is provided on the side wall of the shell 1, and the mounting plate 201 is embedded in the opening of the base 2, and the connecting plate 2011 extends into the accommodating cavity until the first clamping block 2012 is clamped with the clamping hole 101, thereby connecting the mounting plate 201 to the shell 1 by clamping and fixing, which is convenient for disassembly and assembly.

[0068] In this embodiment, if Figure 5 and Figure 6 As shown, the number of connecting plates 2011 is at least two, and at least two connecting plates 2011 are respectively located on one side surface of the mounting plate 201 and close to two opposite edges; correspondingly, there are respectively snap-fitting holes 101 on the two opposite side walls of the shell 1, and the first snap-fitting blocks 2012 on the two connecting plates 2011 are respectively snap-fitted into the corresponding snap-fitting holes 101 to improve the stability of the connection between the mounting plate 201 and the shell 1.

[0069] Further, such as Figure 6 As shown, a positioning block 203 is provided on one side of the mounting plate 201 near the corner. When the housing 1 is connected to the base 2, the positioning block 203 is located in the accommodating cavity and abuts against the inner wall of the housing 1, thereby playing a positioning role, ensuring the stability of the connection between the housing 1 and the base 2 and avoiding shaking and misalignment. Specifically, as Figure 6As shown, a folded-angle protrusion can be provided on one side of the mounting plate 201 near the top corner. The protrusion is the positioning block 203 mentioned above. The shape of the protrusion is adapted to the inner wall of the housing 1 near the top corner. When the housing 1 is connected to the base 2, the protrusion can respectively abut against the two adjacent inner walls of the housing 1, further ensuring a stable connection between the housing 1 and the base 2.

[0070] In an optional embodiment of the present invention, Figure 2 and Figure 5 As shown, the base 2 further includes an extension plate 202, one end of which is connected to the mounting plate 201, and the other end of the extension plate 202 extends away from the mounting plate 201. The mounting member 5 is detachably mounted on the extension plate 202. The extension plate 202 has two elongated protrusions 2021 spaced apart and arranged in parallel. The two protrusions 2021 each have a slide groove 2022. The openings of the two slide grooves 2022 face each other, thereby forming a slideway extending in one direction between the two protrusions 2021. The mounting member 5 has a slide plate 501 that cooperates with the slideway. The two opposing edges of the slide plate 501 are slidably embedded in the corresponding slide grooves 2022, and the slide plate 501 slides into the slideway. The mounting member 5 is connected to the extension plate 202 by a sliding connection. During installation, the sliding plate 501 is inserted into the slide groove 2022 to complete the assembly of the mounting member 5 and the extension plate 202. The extension plate 202 is separated from the mounting member 5 by sliding the sliding plate 501 out of the slide groove, thereby facilitating the inspection and replacement of the ceramic antenna 301. During the actual assembly process, the mounting member 5 can be pre-installed on a predetermined installation location of the vehicle (such as a rearview mirror or bumper). The extension plate 202 is then assembled with the mounting member 5 at the corresponding predetermined installation location as needed, thereby meeting the requirements of different communication antenna installation locations.

[0071] Further, such as Figure 5 As shown, an elastic top block 2023 is provided between the extension plate 202 and the two protrusions 2021. When the slide plate 501 slides into the slideway, the elastic top block 2023 presses against one side of the slide plate 501. The elastic top block 2023 applies a tightening force to the slide plate 501, so that at least one side of the outer wall of the slide plate 501 is abutted against at least one side of the inner wall of the slide groove 2022, thereby improving the stability of the connection between the mounting member 5 and the extension plate 202, preventing the slide plate 501 from being separated from the slideway, and being more suitable for actual loading environments.

[0072] In this embodiment, if Figure 5As shown, the wall surface on one side of the slide plate 501 is sloped, extending obliquely from bottom to top along the direction in which the slide plate 501 slides into the slideway. As the slide plate 501 slides into the slideway, the sloped surface guides the slide plate 501, facilitating the connection between the mounting member 5 and the extension plate 202. Once the slide plate 501 has slid to a predetermined position within the slideway, the sloped surface presses upward against the bottom surface of the slide plate 501, thereby abutting the outer wall of the slide plate 501 against the inner wall of the chute 2022, thereby enhancing the stability of the connection between the mounting member 5 and the extension plate 202. The elastic top block 2023 may be made of, but is not limited to, rubber.

[0073] In an optional embodiment of the present invention, Figure 2 、 Figure 5 and Figure 7 As shown, a mounting post 502 is provided on the extension plate 202, one end of which is connected to the top surface of the extension plate 202, and the other end of which can extend upward. A second clamping block 5021 in the shape of an oblique tooth is provided on the outer wall of the mounting post 502. The communication antenna also includes a mounting base 6, which has a mounting hole 601. The mounting post 502 is inserted into the mounting hole 601, and the second clamping block 5021 is clamped to the edge of the mounting hole 601. The mounting base 6 can be connected to the vehicle's rearview mirror, or the mounting base 6 can be part of the vehicle's rearview mirror. Depending on the different installation positions on the vehicle, the mounting base 6 can be adapted to have different structures, as long as it can adapt to the installation structure of the extension plate 202.

[0074] Further, such as Figure 5 As shown, a suction cup 503 is provided at the connection position between the epitaxial plate 202 and the mounting column 502. When the mounting column 502 is inserted into the mounting hole 601, the suction cup 503 is adsorbed and fixed to the outer wall of the mounting seat 6, thereby further improving the stability of the connection between the epitaxial plate 202 and the mounting column 502.

[0075] In the present invention, the connector 4 used may be, but is not limited to, a FAKRA connector. During use, a communication antenna can be mounted on a vehicle's rearview mirror. The communication antenna is connected to an onboard coaxial cable via the FAKRA connector, and then to an in-vehicle terminal, enabling V2X signal communication within the vehicle.

[0076] like Figures 8 to 10As shown, the communication antenna of the present invention can achieve a gain of 3dBi (phi = 0-180°) at 5915MHz, while its return loss can be below -20dB, demonstrating highly favorable radiation direction and matching performance. The communication antenna of the present invention achieves such excellent performance because the ceramic antenna 301 utilizes a ceramic substrate, which has a high dielectric constant and low loss. This high dielectric constant significantly reduces the size of the antenna, making antenna miniaturization feasible. The low loss characteristics of ceramic ensure that minimal energy is absorbed by the substrate 302, effectively converting the majority of energy into radiated energy, thereby increasing the gain of the communication antenna. The excellent return loss, in addition to the high dielectric constant and low loss of the ceramic itself, can also be achieved through simulation and optimization using simulation software (not covered in this invention) to achieve the optimal return loss solution.

[0077] The characteristics and advantages of the communication antenna of the present invention are:

[0078] 1. In this communication antenna, the housing 1 and the base 2 are snap-fitted together to form a cavity that can accommodate the ceramic antenna 301. The ceramic antenna 301 arranged on the base body 302 is placed in the cavity and the base body 302 is pressed tightly by the inner wall of the housing 1 and the base 2, thereby ensuring the stable installation of the ceramic antenna 301.

[0079] Second, the structure of the communication antenna not only has a smaller volume and higher integration, but also ensures strong structural stability for the installation of the ceramic antenna 301. It is easy to install and is used to achieve intercommunication between vehicles to ensure optimal driving safety.

[0080] 3. The communication antenna is connected to a mounting member 5 on the base 2. The communication antenna can be mounted on the rearview mirror of the vehicle through the mounting member 5, which is convenient for assembly and disassembly.

[0081] Implementation Method 2

[0082] The present invention provides a vehicle, which includes the above-mentioned communication antenna, and the communication antenna is installed on the rearview mirror of the vehicle.

[0083] The vehicle of the present invention has the same features and advantages as the above-mentioned communication antenna, which will not be described in detail here.

[0084] It should be noted that, in the description of this application, the terms "first," "second," etc., are used solely for descriptive purposes and to distinguish similar objects. There is no order of precedence between the two, nor should they be understood to indicate or imply relative importance. Furthermore, in the description of this application, unless otherwise specified, "plurality" means two or more.

[0085] The above-mentioned various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referenced to each other. Each embodiment focuses on the differences from other embodiments.

[0086] The above are only a few embodiments of the present invention. Although the embodiments disclosed in the present invention are as above, the contents are only for the purpose of facilitating understanding of the present invention and are not intended to limit the present invention. Any equivalent changes and modifications made by any person skilled in the art without departing from the concept and principle of the present invention shall fall within the scope of protection of the present invention.

Claims

1. A communication antenna, characterized in that: The communication antenna comprises: A housing (1), wherein the housing (1) has an opening; A base (2), the base (2) being snap-fitted to the opening and enclosing a receiving cavity between the housing (1) and the base (2), a mounting member (5) being connected to the base (2), the mounting member (5) being used to mount the communication antenna on a vehicle; A ceramic substrate (3), the ceramic substrate (3) being located in the accommodating cavity and pressed tightly between the inner wall of the housing (1) and the base (2); The ceramic substrate (3) comprises a ceramic antenna (301) and a substrate body (302); the ceramic antenna (301) is arranged on the substrate body (302); and the surface of the substrate body (302) forms an antenna radiation surface; A connector (4), one end of the connector (4) passes through the base (2) and is electrically connected to the ceramic antenna (301).

2. The communication antenna according to claim 1, wherein: The base body (302) is a plate-shaped structure, at least a portion of the ceramic antenna (301) is exposed on the surface of the base body (302), and the ceramic antenna (301) is fixed to the connector (4) by welding.

3. The communication antenna according to claim 1, wherein: The base (2) comprises a mounting plate (201), a connecting plate (2011) being provided on one side of the mounting plate (201) and close to the edge thereof, one end of the connecting plate (2011) being connected to the mounting plate (201), the other end of the connecting plate (2011) extending in a direction away from the plate surface, and a first clamping block (212) being provided on the other end of the connecting plate (2011); A snap-fitting hole (101) is provided on the side wall of the housing (1); the mounting plate (201) is embedded in the opening of the base (2); and the connecting plate (2011) extends into the accommodating cavity until the first snap-fitting block (2012) snaps into the snap-fitting hole (101).

4. The communication antenna according to claim 3, wherein: A positioning block (203) is provided on one side surface of the mounting plate (201) near a corner. When the housing (1) is connected to the base (2), the positioning block (203) is located in the accommodating cavity and abuts against the inner wall of the housing (1).

5. The communication antenna according to claim 3, wherein: The base (2) further comprises an extension plate (202), one end of the extension plate (202) being connected to the mounting plate (201), the other end of the extension plate (202) extending in a direction away from the mounting plate (201), and the mounting member (5) being detachably mounted on the extension plate (202); The extension plate (202) has two spaced-apart protrusions (2021), and the two protrusions (2021) respectively have a slide groove (2022). The openings of the two slide grooves (2022) are opposite to each other, so as to form a slide extending in one direction between the two protrusions (2021). The mounting member (5) has a slide plate (501) that matches the slide groove. The two opposite edges of the slide plate (501) can be slidably embedded in the corresponding slide grooves (2022), and the slide plate (501) slides into the slide groove.

6. The communication antenna according to claim 5, wherein: The extension plate (202) is provided with an elastic top block (2023) between the two protrusions (2021); when the slide plate (501) slides into the slideway, the elastic top block (2023) presses against one side of the slide plate (501) so that at least one side of the outer wall of the slide plate (501) abuts against at least one side of the inner wall of the slideway.

7. The communication antenna according to claim 6, wherein: The wall surface of the elastic top block (2023) facing the slide plate (501) is a sloped surface, and the sloped surface extends obliquely from bottom to top along the direction in which the slide plate (501) slides into the slideway.

8. The communication antenna according to claim 5, wherein: A mounting column (502) is provided on the extension plate (202), and a second clamping block (5021) is provided on the outer wall of the mounting column (502); The communication antenna further comprises a mounting base (6) connected to the rearview mirror of the vehicle or being a part of the rearview mirror of the vehicle, the mounting base (6) having a mounting hole (601), the mounting post (502) being inserted into the mounting hole (601), and the second clamping block (5021) being clamped to the edge of the mounting hole (601).

9. The communication antenna according to claim 8, wherein: A suction cup (503) is provided at the connection position between the extension plate (202) and the mounting column (502); when the mounting column (502) is inserted into the mounting hole (601), the suction cup (503) is fixed by adsorption to the outer wall of the mounting seat (6).

10. A vehicle, characterized in that: The vehicle comprises the communication antenna according to any one of claims 1 to 9, wherein the communication antenna is mounted on a rearview mirror of the vehicle.

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