CN212085221U

CN212085221U - Antenna and shark fin antenna assembly

Info

Publication number: CN212085221U
Application number: CN202020938306.2U
Authority: CN
Inventors: 刘然; A·D·福克斯; 邵树涛; 范陈洁
Original assignee: Continental Automotive Parts Suzhou Co Ltd
Current assignee: Continental Automotive Parts Suzhou Co Ltd
Priority date: 2020-05-28
Filing date: 2020-05-28
Publication date: 2020-12-04
Anticipated expiration: 2030-05-28

Abstract

An antenna and shark fin antenna assembly. The antenna comprises a linear positive dipole, an insulating layer, a tubular metal feeder and a cylindrical negative dipole, wherein the metal feeder is provided with a first end and a second end which are opposite, the positive dipole is arranged in the metal feeder and is exposed out of the first end of the metal feeder, the insulating layer is arranged between the positive dipole and the metal feeder, and the negative dipole is sleeved on the first end of the metal feeder and forms a resonant cavity with the metal feeder. The shark fin antenna assembly includes a housing; a printed circuit board disposed in the housing; one or more cellular mobile communications antennas disposed on the printed circuit board; and the antenna is arranged on the printed circuit board. The utility model discloses an antenna and shark fin antenna assembly it provides an antenna that the manufacturing cost is low.

Description

Antenna and shark fin antenna assembly

Technical Field

The utility model relates to an automotive electronics, in particular to antenna and shark fin antenna assembly.

Background

With the development of car networking technology, more and more vehicles are equipped with V2X (Vehicle-to-illuminating) antennas. Existing V2X antennas typically take the form of patch antennas, PCB antennas, which typically have the disadvantages of being expensive to manufacture, non-omnidirectional, etc.

SUMMERY OF THE UTILITY MODEL

The utility model provides a problem provide an antenna and shark fin antenna assembly, it provides an antenna that the manufacturing cost is low.

In order to solve the above problem, an aspect of the present invention provides an antenna, which includes a straight positive dipole, an insulating layer, a tubular metal feeder, and a cylindrical negative dipole, wherein the metal feeder has a first end and a second end opposite to each other, the positive dipole is disposed in the metal feeder and exposed out of the first end of the metal feeder, the insulating layer is disposed between the positive dipole and the metal feeder, and the negative dipole is disposed at the first end of the metal feeder and forms a resonant cavity with the metal feeder.

Another aspect of the utility model provides a shark fin antenna assembly, it includes: a housing;

a printed circuit board disposed within the housing; one or more cellular mobile communications antennas disposed on the printed circuit board; and the antenna is arranged on the printed circuit board.

Compared with the prior art, the scheme has the following advantages:

the positive dipole and the insulating layer in the antenna can be manufactured by a coaxial cable, and the antenna has the advantage of low manufacturing cost. In addition, the antenna can be installed in the shell of the shark fin antenna assembly, so that omnidirectional V2X signal receiving and/or transmitting are realized, and good performance is achieved.

Drawings

Fig. 1 illustrates a three-dimensional schematic view of a shark fin antenna assembly in a separated state of an upper shell and a lower shell, in accordance with one or more embodiments of the present invention;

fig. 2 illustrates a three-dimensional schematic view of an antenna in accordance with one or more embodiments of the present invention;

fig. 3 illustrates a front view of an antenna and a cross-sectional view of the antenna along section a-a in accordance with one or more embodiments of the present invention.

Detailed Description

In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention to those skilled in the art. It will be apparent, however, to one skilled in the art that the present invention may be practiced without some of these specific details. Furthermore, it is to be understood that the invention is not to be limited to the specific embodiments described. Rather, any combination of the following features and elements, whether related to different embodiments or not, is contemplated to implement the present invention. Thus, the following aspects, features, embodiments and advantages are merely illustrative and should not be considered elements or limitations of the claims except where explicitly recited in a claim.

Fig. 1 illustrates a three-dimensional schematic view of a shark fin antenna assembly in a separated state of an upper shell and a lower shell, in accordance with one or more embodiments of the present invention. Referring to FIG. 1, a shark fin antenna assembly 10 includes a housing 11, a printed circuit board 12, one or more cellular mobile communications antennas 13, and an antenna 14. The housing 11 includes an upper housing 11a and a lower housing 11 b. The upper case 11a and the lower case 11b are assembled to form a space therebetween for accommodating the printed circuit board 12, the cellular mobile communication antenna 13, and the antenna 14. The printed circuit board 12 is disposed in the housing 11, i.e., in a space formed after the upper and

lower housings

11a and 11b are assembled. The cellular mobile communication antenna 13 is disposed on the printed circuit board. The cellular mobile communication antenna 13 may be, for example, a PCB antenna. The aforementioned cellular mobile communications may include, but are not limited to, one or more of 2G (GSM, CDMA), 3G (WCDMA, CDMA2000, TD-SCDMA, etc.), 4G (LTE-FDD, LTE-TDD, etc.), 5G, etc. The antenna 14 is likewise arranged on the printed circuit board 12, which can be connected, for example, by soldering.

Fig. 2 illustrates a three-dimensional schematic diagram of an antenna in accordance with one or more embodiments of the present invention. Fig. 3 illustrates a front view of an antenna and a cross-sectional view of the antenna along section a-a in accordance with one or more embodiments of the present invention. Referring to fig. 2 and 3 in combination, the antenna 14 includes a straight positive dipole 141, an insulating layer 142, a tubular metal feed 143, and a cylindrical negative dipole 144. The metal feed line 143 has opposite first and

second ends

143a and 143 b. The positive dipole 141 is disposed in the metal feed line 143 and exposed at a first end 143a of the metal feed line 143. In one or more embodiments, the positive dipole 141 is also exposed at the second end 143b of the metal feed 143 and is connected to an external feed, e.g., via a terminal or the like. In one or more embodiments, the positive dipole 141 is linearly polarized. An insulating layer 142 is disposed between the metal feed 143 and the positive dipole 141. In one or more embodiments, the insulating layer 142 is exposed at the first end 143a of the metal feed line 143, or at the second end 143b of the metal feed line 143. The negative dipole 144 is disposed on the first end 143a of the metal feeding line 143, and forms a resonant cavity 145 with the metal feeding line 143. The positive dipole 141 and the negative dipole 144 exposed at the first end 143a of the metal feed line 143 form a dipole antenna.

In one or more embodiments, the metal feed 143 also has one or more connections 143c at the second end 143b of the metal feed 143. The antenna 14 is connected to the printed circuit board 12 by a connecting portion 143c, for example, by soldering.

In one or more embodiments, the positive dipole 141 and the insulating layer 142 can be made by coaxial cable. Since the coaxial cable is generally inexpensive, manufacturing the positive dipole 141 and the insulating layer 142 by the coaxial cable reduces the manufacturing cost.

In one or more embodiments, the metal feed 143 and the negative dipole 144 can be fabricated from a magnetic metal, such as a copper alloy. In one or more embodiments, the metal feed 143 and the negative dipole 144 can be connected by an interference fit and/or a crimping process.

In one or more embodiments, antenna 14 is an omni-directional antenna. In one or more embodiments, antenna 14 is an antenna adapted to transceive V2X signals. In one or more embodiments, the antenna 14 is adapted to radiate and/or receive electromagnetic waves ranging from 5850MHz to 5920 MHz. In one or more embodiments, antenna 14 and cellular mobile communications antenna 13 cooperate to provide for the reception and/or transmission of V2X signals.

As can be seen from the foregoing description, the positive dipole 141 and the insulating layer 142 in the antenna 14 can be manufactured by a coaxial cable, which has an advantage of low manufacturing cost. In addition, the shark fin antenna assembly 10 can be installed in the shell 11 of the shark fin antenna assembly, and omnidirectional V2X signal receiving and/or transmitting are achieved, so that the shark fin antenna assembly has good performance.

Although the present invention has been described with reference to the preferred embodiments, the present invention is not limited thereto. Various changes and modifications can be made by one skilled in the art without departing from the spirit and scope of the invention, and the scope of the invention is to be determined by the appended claims.

Claims

1. An antenna comprising a linear positive dipole, an insulating layer, a tubular metal feed, and a tubular negative dipole, said metal feed having opposite first and second ends, said positive dipole disposed within said metal feed and exposed at said first end of said metal feed, said insulating layer disposed between said positive dipole and said metal feed, said negative dipole disposed at said first end of said metal feed and forming a resonant cavity with said metal feed.

2. The antenna of claim 1, wherein the metal feed line further has one or more connection portions at the second end of the metal feed line.

3. The antenna of claim 1, wherein the positive dipole and the insulating layer are made of coaxial cable.

4. The antenna of claim 1, wherein the metal feed and the negative dipole are fabricated from a magnetic metal.

5. The antenna of claim 1, wherein the metal feed and the negative dipole are connected by an interference fit and/or a crimping process.

6. The antenna of claim 1, wherein the antenna is an omni-directional antenna.

7. The antenna of claim 1, wherein said antenna is an antenna adapted to transceive V2X signals.

8. An antenna according to claim 1, wherein the antenna is adapted to radiate and/or receive electromagnetic waves of 5850 MHz-5925 MHz.

9. A shark fin antenna assembly, comprising:

a housing;

a printed circuit board disposed within the housing;

one or more cellular mobile communications antennas disposed on the printed circuit board; and

an antenna as claimed in any one of claims 1 to 8, provided on the printed circuit board.