CN209948032U - Novel automobile antenna - Google Patents
Novel automobile antenna Download PDFInfo
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- CN209948032U CN209948032U CN201921100064.3U CN201921100064U CN209948032U CN 209948032 U CN209948032 U CN 209948032U CN 201921100064 U CN201921100064 U CN 201921100064U CN 209948032 U CN209948032 U CN 209948032U
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- antenna
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- shark fin
- circuit board
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Abstract
The utility model discloses a novel automobile antenna, which comprises an antenna shell, a shark fin shell, an external antenna, an internal antenna and a circuit board, wherein the antenna shell is internally provided with a first cavity, and the circuit board and the internal antenna are arranged in the first cavity; the external antenna is attached to the shark fin shell; the shark fin shell component is fixedly arranged above the roof of the automobile; the antenna shell is fixedly arranged below the roof of the automobile; the internal antenna and the external antenna are respectively and electrically connected with the circuit board. The utility model discloses a rationally set up car antenna, make it guarantee radiation performance under the limited and abominable condition of electromagnetic environment in high space.
Description
Technical Field
The application relates to the technical field of automotive electronics, in particular to a novel automobile antenna.
Background
With the rapid development of the automobile industry and the continuous improvement of communication technology, people have higher and higher requirements on automobiles. According to the aroma theorem, the increase in the number of antennas is advantageous for improving communication performance, so that a multiple antenna (MIMO) technology is also adopted in automotive electronics in order to obtain a good new type of communication. At present, a rear antenna on the roof of an automobile is a shark fin type vehicle-mounted antenna. However, shark fin antenna is generally installed on the outside of the automobile (i.e. on the roof of the automobile), and the roof of the automobile is generally laid flat by a metal plate, which results in poor coverage of the antenna on the roof of the automobile to the inside of the automobile, so that the design of a built-in antenna is also necessary.
External antennas for automobiles (such as shark fin antennas) can rely on the height of the antenna to obtain good antenna performance, but internal antennas are generally limited by the design of automobiles in the antenna environment, for example, the antenna is not high enough, for example, the antenna is mounted on a large metal plane, and the severe environment causes the antenna performance to be extremely poor. It is very necessary how to design good performance antennas in these antenna environments. Meanwhile, the design of the built-in antenna for the automobile is difficult.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problems, the present invention provides a novel automobile antenna, which includes an antenna housing, a shark fin housing, an external antenna, an internal antenna, and a circuit board, wherein the antenna housing is provided with a first cavity therein, and the circuit board and the internal antenna are disposed in the first cavity; the external antenna is attached to the shark fin shell; the shark fin shell component is fixedly arranged above the roof of the automobile; the antenna shell is fixedly arranged below the roof of the automobile; the internal antenna and the external antenna are respectively and electrically connected with the circuit board.
Preferably, the antenna casing comprises a metal casing and a plastic casing, and the metal casing and the plastic casing are detachably connected to form the first cavity.
Preferably, the internal antenna includes a feeding stub and a coupling stub.
Preferably, the feeding branch is disposed on the circuit board.
Preferably, the coupling branches are fixed to the inner surface of the plastic casing.
Preferably, the feeding branch is a monopole antenna structure, a loop antenna structure or a PIFA antenna structure.
Preferably, the operating frequency band of the internal antenna is adjusted by adjusting the area of the coupling branch, the length of the trace of the coupling branch and/or the height of the feeding branch.
Preferably, the built-in antenna is an LTE antenna or a WIFI antenna.
Preferably, the external antenna is attached to an inner surface of the shark fin housing member.
Preferably, the shark fin shell component further comprises a GPS antenna assembly, a second cavity is arranged inside the shark fin shell component, and the GPS antenna assembly is fixedly arranged in the second cavity.
Compared with the prior art, the utility model discloses there are following technological effect:
1. the embodiment of the utility model provides a through reasonable automobile antenna that sets up, make it guarantee radiation performance under the limited and abominable condition of electromagnetic environment in high space.
2. The embodiment of the utility model provides an utilize the impedance bandwidth of coupling feed's mode increase antenna to and through fixing the mode increase antenna radiation area at the internal surface of plastics shell spare with the coupling minor matters, and then improve the radiation efficiency of antenna.
Of course, it is not necessary for any particular product to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts. In the drawings:
fig. 1 is an exploded view of a novel automobile antenna structure according to an embodiment of the present invention;
fig. 2 is a schematic diagram of an internal antenna according to an embodiment of the present invention;
fig. 3 is a three-view diagram of the novel car antenna of the embodiment of the present invention.
Detailed Description
The present invention provides a novel car antenna, which will be described in detail with reference to the accompanying drawings, and the present embodiment is implemented on the premise of the technical solution of the present invention, and provides a detailed embodiment and a specific operation process, however, the protection scope of the present invention is not limited to the following embodiments, and those skilled in the art can modify and color-polish the novel car antenna without changing the spirit and content of the present invention.
Referring to fig. 1-3, a novel automobile antenna includes an antenna housing, a shark fin housing 1, an external antenna 2, an internal antenna 5, and a circuit board 4, where the antenna housing includes a metal housing 31 and a plastic housing 32, the metal housing 31 and the plastic housing 32 are detachably connected by a snap-fit manner to form a first cavity, and the circuit board 4 and the internal antenna 5 are disposed in the first cavity; the external antenna 2 is attached to the shark fin shell member 1, and the external antenna 2 can be arranged along the inner surface or the outer surface of the shark fin shell member 1 according to actual use requirements.
The shark fin shell component 1 is positioned outside an automobile and fixedly arranged above the roof of the automobile, and when the shark fin shell component 1 is actually fixed, the shark fin shell component 1 can penetrate through the roof of the automobile and is fixed on the metal shell component 31 through screws; the antenna shell is positioned in the automobile and fixedly arranged below the automobile roof, the metal shell 31 of the antenna shell is attached to the automobile roof, the grounding foam is arranged between the antenna shell and the automobile roof, and the antenna shell and the metal shell can be fixed on the automobile roof through a screw in actual fixing; it will be appreciated that the shark fin housing element 1 and the antenna housing element may be fixed to the roof of the vehicle in other ways, depending on the actual design requirements.
The internal antenna 5 and the external antenna 2 are respectively electrically connected with the circuit board 4 so as to facilitate signal transmission, wherein a circuit for electrically connecting the external antenna 2 with the circuit board needs to penetrate through the roof of the automobile.
As a possible embodiment, the internal antenna 5 includes a feeding branch 51 and a coupling branch 52, the feeding branch 51 is disposed on the circuit board 4, and the circuit board 4 feeds a signal to the internal antenna through the feeding branch 51; the coupling branch 52 is fixed on the inner surface of the plastic shell 6, the feeding branch 51 transmits signals to the coupling branch 52 in a coupling mode, and the feeding branch 51 and the coupling branch 52 are not in direct contact. Here, the internal antenna 5 is in a coupling feeding form, on one hand, the coupling branches 52 are fixed on the inner surface of the plastic casing 6, and the whole inner surface of the plastic casing 6 is used to increase the area of the internal antenna 5, and on the other hand, the coupling branches 52 are arranged on the inner surface of the plastic casing 6 and the feeding branches 51 are arranged on the circuit board 4, so that the height between the plastic casing 6 and the roof of the automobile is maximally utilized, the radiation bandwidth and the radiation area of the internal antenna 5 are improved, and the radiation performance of the internal antenna is ensured under the condition that the height of the internal antenna 5 is limited and the radiation environment is poor due to the fact that the internal antenna is positioned under the metal automobile roof.
As an embodiment, the operating frequency band of the internal antenna 5 is adjusted by adjusting the area of the coupling branch 52, the length of the coupling branch 52 and/or the height of the feeding branch 51.
As an embodiment, the novel automobile antenna further comprises a GPS antenna assembly 6, a second cavity is arranged inside the shark fin shell component 1, and the GPS antenna assembly 6 is fixedly arranged in the second cavity and used for positioning and navigation of an automobile.
As an example, the internal antenna 5 is an LTE antenna or a WI-fi antenna.
As an example, the feed branch 51 is a monopole antenna structure, a loop antenna structure, or a ppi FA antenna structure.
The disclosure above is only one specific embodiment of the present application, but the present application is not limited thereto, and any variations that can be made by those skilled in the art are intended to fall within the scope of the present application.
Claims (9)
1. A novel automobile antenna is characterized by comprising an antenna shell, a shark fin shell, an external antenna, an internal antenna and a circuit board, wherein,
a first cavity is formed in the antenna shell, and the circuit board and the built-in antenna are arranged in the first cavity;
the external antenna is attached to the shark fin shell;
the shark fin shell component is fixedly arranged above the roof of the automobile; the antenna shell is fixedly arranged below the roof of the automobile;
the internal antenna and the external antenna are respectively and electrically connected with the circuit board.
2. The novel automobile antenna of claim 1, wherein the antenna housing comprises a metal housing and a plastic housing, and the metal housing and the plastic housing are detachably connected to form the first cavity.
3. The novel vehicle antenna of claim 2, wherein the internal antenna comprises a feed stub and a coupling stub.
4. The novel automobile antenna of claim 3, wherein the feed stub is disposed on the circuit board.
5. The novel vehicle antenna of claim 3, wherein the coupling stub is secured to an inner surface of the plastic housing.
6. The novel automobile antenna of claim 3, wherein the feed stub is a monopole antenna structure, a loop antenna structure, or a PIFA antenna structure.
7. The novel automobile antenna of claim 1, wherein the built-in antenna is an LTE antenna or a WIFI antenna.
8. The novel vehicle antenna of claim 1, wherein said external antenna is attached to an inner surface of said shark fin housing member.
9. The novel vehicle antenna of any one of claims 1-8, further comprising a GPS antenna assembly, wherein a second cavity is disposed within the shark fin housing member, and wherein the GPS antenna assembly is fixedly disposed within the second cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921100064.3U CN209948032U (en) | 2019-07-12 | 2019-07-12 | Novel automobile antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921100064.3U CN209948032U (en) | 2019-07-12 | 2019-07-12 | Novel automobile antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209948032U true CN209948032U (en) | 2020-01-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921100064.3U Active CN209948032U (en) | 2019-07-12 | 2019-07-12 | Novel automobile antenna |
Country Status (1)
| Country | Link |
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| CN (1) | CN209948032U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110247159A (en) * | 2019-07-12 | 2019-09-17 | 上海安费诺永亿通讯电子有限公司 | A kind of new automobile antenna |
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2019
- 2019-07-12 CN CN201921100064.3U patent/CN209948032U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110247159A (en) * | 2019-07-12 | 2019-09-17 | 上海安费诺永亿通讯电子有限公司 | A kind of new automobile antenna |
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