CN210607633U

CN210607633U - 5G vehicle-mounted shark fin antenna

Info

Publication number: CN210607633U
Application number: CN201921839790.7U
Authority: CN
Inventors: 何明超; 田苗; 唐恺; 叶嘉宾
Original assignee: Huizhou Desay SV Automotive Co Ltd
Current assignee: Huizhou Desay SV Automotive Co Ltd
Priority date: 2019-10-29
Filing date: 2019-10-29
Publication date: 2020-05-22
Anticipated expiration: 2029-10-29

Abstract

The utility model discloses an on-vehicle shark fin antenna of 5G, including a shark fin shell, be provided with the cavity in the shark fin shell, the bottom of shark fin shell is provided with the PCB board, the front position of PCB board is provided with first 5G antenna, the rear end position of PCB board is provided with second 5G antenna, the middle part of PCB board is provided with the GNSS antenna, the left side position of PCB board is provided with first C-V2X antenna, first C-V2X antenna is located between first 5G antenna and the GNSS antenna, the right side position of PCB board is provided with second C-V2X antenna, second C-V2X antenna is located between second 5G antenna and the GNSS antenna, the left side position of PCB board is provided with first 5G MIMO antenna, first 5G MIMO antenna is located between second 5G antenna and the GNSS antenna, the right side position of PCB board is provided with second 5G MIMO antenna, second 5G MIMO antenna is located between first 5G antenna and the GNSS antenna. The isolation degree between each antenna is ensured through reasonable layout, and more electromagnetic interference and electromagnetic coupling are avoided.

Description

5G vehicle-mounted shark fin antenna

Technical Field

The utility model relates to a vehicle antenna technical field especially relates to a 5G vehicle-mounted shark fin antenna.

Background

At present, with the development of mobile communication technology, especially the arrival of 5G communication and car networking technology, the function of wireless networking in automobiles is more and more emphasized, and the number of antennas and the arrangement of antennas become more and more challenging. According to the traditional vehicle-mounted antenna design scheme, a GNSS antenna and a 4G antenna are integrated in a shark fin with small size, but with the addition of a 5G antenna and a V2X antenna, the number of the antennas becomes more and more, so that the distance between the antennas in the shark fin is reduced, the isolation between the antennas is continuously deteriorated, the problems of electromagnetic interference, electromagnetic coupling and the like occur, the electromagnetic compatibility of the whole antenna system is reduced, and the normal operation of the vehicle-mounted antenna system is influenced. Meanwhile, in the automobile factory, the size of the shark fin is controlled to be more and more strict from the aspects of automobile ID design and aesthetics, and the shark fin is expected to be as small as possible, so that the challenge to the design of the vehicle-mounted antenna is increased. It is therefore of increasing importance how to design more and more antennas in shark fins with limited space and to meet the performance requirements for isolation between the antennas.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an on-vehicle shark fin antenna of 5G, it guarantees the isolation between each antenna through reasonable overall arrangement, has avoided more electromagnetic interference and electromagnetic coupling.

In order to achieve the above object, the present invention provides a 5G vehicular shark fin antenna, comprising a shark fin housing, a cavity is disposed in the shark fin housing, a PCB is disposed at the bottom of the shark fin housing, a first 5G antenna is disposed at the front end of the PCB, a second 5G antenna is disposed at the rear end of the PCB, a GNSS antenna is disposed at the middle of the PCB, a first C-V2X antenna is disposed at the left end of the PCB, a first C-V2X antenna is disposed between the first 5G antenna and the GNSS antenna, a second C-V2X antenna is disposed at the right end of the PCB, a second C-V2X antenna is disposed between the second 5G antenna and the GNSS antenna, a first 5G antenna is disposed at the left end of the PCB, and a first 5G MIMO antenna is disposed between the second 5G antenna and the GNSS antenna, and a second 5G MIMO antenna is arranged at the right position of the PCB, and the second 5G MIMO antenna is positioned between the first 5G antenna and the GNSS antenna.

In a preferred embodiment, the first C-V2X antenna and the second C-V2X antenna are arranged in a central symmetry manner with respect to the GNSS antenna.

As a preferred embodiment, the first 5G MIMO antenna and the second 5G MIMO antenna are arranged in central symmetry with respect to the GNSS antenna.

As a preferred embodiment, the first 5G antenna includes a 2G band, a 3G band, a 4G band, and a 5G band.

As a preferred embodiment, the second 5G antenna includes a 2G band, a 3G band, a 4G band and a 5G band.

In a preferred embodiment, the height of the first 5G antenna is lower than the height of the second 5G antenna.

As a preferred embodiment, the isolation among the first 5G antenna, the second 5G antenna, the first 5G MIMO antenna, the second 5G MIMO antenna, the GNSS antenna, the first C-V2X antenna, and the second C-V2X antenna is 15dB or more.

In a preferred embodiment, the shark fin outer shell has dimensions of 160mm in length, 60mm in width and 60mm in height.

In a preferred embodiment, the GNSS antenna is arranged in the middle of the PCB in the form of a ceramic dielectric antenna.

To sum up, the application the technical scheme of the utility model, following beneficial effect has: the utility model discloses an on-vehicle shark fin antenna of 5G simple structure, under the numerous restrictive condition of external dimension and antenna figure of shark fin shell, to each antenna rational arrangement, ensured the isolation between each antenna, avoided more electromagnetic interference and electromagnetic coupling, and improved whole antenna system's electromagnetic compatibility. Present antenna system can not rationally arrange out-of-vehicle 5G MIMO antenna and 5G antenna, and the variety of car function has been restricted, the utility model discloses an on-vehicle shark fin antenna of 5G is through adopting the scheme that 5G antenna, 5G MIMO antenna, GNSS antenna and C-V2X antenna combined together, to the antenna rational arrangement of each different type, in order to satisfy future automotive industry to antenna system diversification, multi-functional demand, this shark fin antenna compromises vehicle audio navigation simultaneously, system's amusement, multiple antenna function such as road safety, bring splendid use experience for the user and feel.

Drawings

FIG. 1 is an exploded view of a 5G vehicle shark fin antenna according to the present invention;

fig. 2 is a schematic structural view of the shark fin shell according to the present invention at a first viewing angle;

fig. 3 is a schematic structural view of the shark fin shell according to the present invention at a second viewing angle;

description of reference numerals: 1-shark fin housing, 101-chamber, 2-PCB board, 3-second 5G antenna, 4-second C-V2X antenna, 5-first 5G MIMO antenna, 6-GNSS antenna, 7-second 5G MIMO antenna, 8-first C-V2X antenna, 9-first 5G antenna.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, but the technical solution does not limit the scope of the present invention.

In the present invention, for the sake of clearer description, the following explanation is made: the observer is observing in the face of fig. 1, the observer left side is set as the back, the observer right side is set as the front, the observer front side is set as the left, the observer back side is set as the right, the observer top is set as the top, and the observer bottom is set as the bottom, it should be noted that the terms "front position", "rear position", "left position", "right position", "middle part", "bottom", "top", "bottom", etc. in this text indicate that the directions or positional relationships are the directions or positional relationships established based on fig. 1, only for the convenience of clearly describing the present invention, and it is not intended to indicate or imply that the structures or parts referred to must have a specific direction, be constructed in a specific direction, and therefore, it is not to be construed as a limitation of the present invention. Furthermore, the terms "first," "second," and the like are used for purposes of clarity and simplicity of description only and are not to be construed as indicating or implying a relative importance or quantity.

Referring to fig. 1 to 3, the present embodiment provides a 5G vehicular shark fin antenna, which includes a shark fin housing 1, a cavity 101 is disposed in the shark fin housing 1, a PCB 2 is disposed at the bottom of the shark fin housing 1, a first 5G antenna 9 is disposed at a front position of the PCB 2, a second 5G antenna 3 is disposed at a rear position of the PCB 2, a GNSS antenna 6 is disposed at a middle portion of the PCB 2, the GNSS antenna 6 is disposed at a middle portion of the PCB 2 in the form of a ceramic dielectric antenna, a first C-V2X antenna 8 is disposed at a left position of the PCB 2, a first C-V2X antenna 8 is disposed between the first 5G antenna 9 and the GNSS antenna 6, a second C-V2X antenna 4 is disposed at a right position of the PCB 2, a second C-V2X antenna 4 is disposed between the second 5G antenna 3 and the GNSS antenna 6, a first 5G MIMO antenna 5 is disposed at a left position of the PCB 2, the first 5G MIMO antenna 5 is positioned between the second 5G antenna 3 and the GNSS antenna 6, the second 5G MIMO antenna 7 is arranged at the right position of the PCB board 2, and the second 5G MIMO antenna 7 is positioned between the first 5G antenna 9 and the GNSS antenna 6. Specifically, the shark fin shell 1 is 160mm long, 60mm wide and 60mm high, the number of the antennas is seven, the seven antennas are all located in the cavity 101 of the shark fin shell 1, and under the limiting conditions of the appearance size of the shark fin shell 1 and the number of the antennas, the antennas are reasonably arranged, the isolation between the antennas is guaranteed, more electromagnetic interference and electromagnetic coupling are avoided, and the electromagnetic compatibility of the whole antenna system is improved.

As a preferred embodiment of this embodiment, the first C-V2X antenna 8 and the second C-V2X antenna 4 are arranged in central symmetry with respect to the GNSS antenna 6, and the first 5G MIMO antenna 5 and the second 5G MIMO antenna 7 are arranged in central symmetry with respect to the GNSS antenna 6.

In the present embodiment, the first 5G antenna 9 includes a 2G band, a 3G band, a 4G band and a 5G band. The second 5G antenna 3 includes a 2G band, a 3G band, a 4G band, and a 5G band. The height that highly is less than second 5G antenna 3 of first 5G antenna 9, because first 5G antenna 9 and second 5G antenna 3 all include the low frequency channel, the antenna wiring is longer, influences each other very easily, consequently sets up it respectively on 2 spaced apart two positions far away of PCB board, through reasonable layout, makes the isolation between each antenna can control more than 15dB, can guarantee the performance of monomer antenna well.

To sum up, the application the technical scheme of the utility model, following beneficial effect has: the utility model discloses an on-vehicle shark fin antenna of 5G simple structure, under the numerous restrictive condition of external dimension and antenna figure of shark fin shell 1, to each antenna rational arrangement, ensured the isolation between each antenna, avoided more electromagnetic interference and electromagnetic coupling, and improved entire antenna system's electromagnetic compatibility. Present antenna system can not rationally arrange out-of-vehicle 5G MIMO antenna and 5G antenna, and the variety of car function has been restricted, the utility model discloses an on-vehicle shark fin antenna of 5G is through adopting the scheme that 5G antenna, 5G MIMO antenna, GNSS antenna and C-V2X antenna combined together, to the antenna rational arrangement of each different type, in order to satisfy future automotive industry to antenna system diversification, multi-functional demand, this shark fin antenna compromises vehicle audio navigation simultaneously, system's amusement, multiple antenna function such as road safety, bring splendid use experience for the user and feel.

The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations are also considered as the protection scope of the present invention.

Claims

1. The utility model provides an on-vehicle shark fin antenna of 5G, includes a shark fin shell (1), be provided with cavity (101) in the shark fin shell (1), the bottom of shark fin shell (1) is provided with PCB board (2), its characterized in that: a first 5G antenna (9) is arranged at the front end of the PCB (2), a second 5G antenna (3) is arranged at the rear end of the PCB (2), a GNSS antenna (6) is arranged at the middle of the PCB (2), a first C-V2X antenna (8) is arranged at the left side of the PCB (2), a first C-V2X antenna (8) is positioned between the first 5G antenna (9) and the GNSS antenna (6), a second C-V2X antenna (4) is arranged at the right side of the PCB (2), a second C-V2X antenna (4) is positioned between the second 5G antenna (3) and the GNSS antenna (6), a first 5G antenna (5) is arranged at the left side of the PCB (2), and the first 5G MIMO antenna (5) is positioned between the second 5G antenna (3) and the GNSS antenna (6), a second 5G GMIMO antenna (7) is arranged at the right side position of the PCB (2), and the second 5G MIMO antenna (7) is positioned between the first 5G antenna (9) and the GNSS antenna (6).

2. The 5G vehicle-mounted shark fin antenna according to claim 1, wherein: the first C-V2X antenna (8) and the second C-V2X antenna (4) are arranged in a central symmetry manner relative to the GNSS antenna (6).

3. A5G vehicle-mounted shark fin antenna according to claim 1 or 2, wherein: the first 5G MIMO antenna (5) and the second 5G MIMO antenna (7) are arranged in a central symmetry manner relative to the GNSS antenna (6).

4. The 5G vehicle-mounted shark fin antenna according to claim 1, wherein: the first 5G antenna (9) comprises a 2G frequency band, a 3G frequency band, a 4G frequency band and a 5G frequency band.

5. A5G vehicle-mounted shark fin antenna according to claim 1 or 4, wherein: the second 5G antenna (3) comprises a 2G frequency band, a 3G frequency band, a 4G frequency band and a 5G frequency band.

6. A5G vehicle-mounted shark fin antenna according to claim 5, wherein: the height of the first 5G antenna (9) is lower than the height of the second 5G antenna (3).

7. The 5G vehicle-mounted shark fin antenna according to claim 6, wherein: isolation between the first 5G antenna, the second 5G antenna, the first 5G MIMO antenna, the second 5G MIMO antenna, the GNSS antenna, the first C-V2X antenna, and the second C-V2X antenna is above 15 dB.

8. A5G vehicle-mounted shark fin antenna according to claim 1 or 7, wherein: the shark fin shell (1) is 160mm long, 60mm wide and 60mm high.

9. The 5G vehicle-mounted shark fin antenna of claim 8, wherein: the GNSS antenna (6) is arranged in the middle of the PCB (2) in a ceramic dielectric antenna mode.