CN211150755U

CN211150755U - Multi-functional support mosaic shark fin antenna

Info

Publication number: CN211150755U
Application number: CN202020100412.3U
Authority: CN
Inventors: 徐鹏飞; 吕小平
Original assignee: Shenzhen Vlg Wireless Technology Co ltd
Current assignee: Shenzhen Vlg Wireless Technology Co ltd
Priority date: 2020-01-16
Filing date: 2020-01-16
Publication date: 2020-07-31
Anticipated expiration: 2030-01-16

Abstract

The utility model discloses a multi-functional support mosaic shark fin antenna, include L NA mainboard and locate the antenna module on the L NA mainboard, the antenna module includes 4G main antenna, 4G diversity antenna, FM antenna and GNSS ceramic antenna, 4G main antenna and 4G diversity antenna interval arrangement and respectively with L NA mainboard connection, the utility model discloses with 4G main antenna and 4G diversity antenna interval arrangement, can improve the antenna isolation, increased the efficiency and the gain of antenna, the utility model discloses overall structure arranges rationally, has not only ensured the signal reception effect to occupation space has been reduced, shark fin antenna's compact structure nature has been improved.

Description

Multi-functional support mosaic shark fin antenna

Technical Field

The utility model relates to an automotive electronics technical field, concretely relates to multi-functional support inserted shark fin antenna.

Background

The automobile is an indispensable vehicle, along with the development of communication technology, the requirements of people on wireless communication are higher and higher, the original single AM/FM rod type vehicle-mounted antenna, glass printed vehicle-mounted antenna and wire-wound antenna can not meet the requirements of vehicle-mounted multimedia in the aspects of performance and appearance, various antennas such as AM/FM, GNSS, WIFI, BT, 2G/3G/4G and the like are applied more and more on a vehicle, in the prior art, a shark fin antenna is composed of an independent steel plate antenna, an FM antenna circuit in a PCB and an L NA main board, the steel plate antenna and the FM PCB are vertically welded on a L NA main board, two MONOPO L E single-stage antennas of a 44G main antenna and a 4G diversity antenna are vertically arranged on the L NA main board, and the space of the shark fin is limited, so that the two antennas of the 4G main antenna and the 4G diversity antenna interfere with each other and are coupled with each other, and the antenna efficiency, gain and isolation can not meet all the requirements.

SUMMERY OF THE UTILITY MODEL

To the defect among the prior art, the utility model provides a multi-functional support inserted shark fin antenna can show the isolation that promotes the antenna, satisfies the requirement of radio communication to antenna efficiency, gain and isolation better.

The utility model provides a multi-functional support mosaic shark fin antenna, include L NA mainboard and locate the antenna module on the L NA mainboard, the antenna module includes 4G main antenna, 4G diversity antenna, FM antenna and GNSS ceramic antenna, 4G main antenna and 4G diversity antenna interval arrangement and respectively with L NA mainboard connection, the FM antenna is connected with the L NA mainboard and is located between 4G main antenna and the 4G diversity antenna, the GNSS ceramic antenna is located L NA mainboard and corresponds the 4G diversity antenna outside.

In the technical scheme, the 4G main antenna and the 4G diversity antenna are adopted in the antenna assembly to form the 4G antenna, the 4G main antenna and the 4G diversity antenna are arranged at intervals, so that a certain distance is reserved between the 4G main antenna and the 4G diversity antenna, the isolation between the 4G main antenna and the 4G diversity antenna can be increased, in addition, the frequency range of the FM antenna is 88-108Mhz, the frequency band is low, the frequency of FM is greatly different from the frequency ranges of the 4G main antenna and the 4G diversity antenna, and the standing wave effect of the FM antenna can be improved by placing the FM antenna in the middle of the 4G main antenna and the diversity antenna.

Preferably, the lower end of the 4G main antenna is provided with a main antenna bracket which extends to the outer side of the 4G main antenna, and the main antenna bracket is provided with a main antenna mounting hole.

Preferably, the diversity antenna bracket is arranged at the lower end of the 4G diversity antenna, and extends to the outer side of the 4G diversity antenna, and a diversity antenna mounting hole is formed in the diversity antenna bracket.

Preferably, the lower end of the FM antenna is provided with a pair of installation plug parts, and the installation plug parts are fixedly plugged on an L NA main board.

Preferably, the outer side face of the lower end of the L NA main board is provided with a copper exposing area, a zinc alloy base is arranged below the copper exposing area and electrically connected with the copper exposing area, the edge of the zinc alloy base is provided with a side wall attaching portion arranged around the copper exposing area, and the side wall attaching portion is in surface contact with the copper exposing area.

Preferably, the installation bottom shell is arranged below the zinc alloy base, and a plurality of shell installation holes arranged around the L NA main board are formed in the edge of the installation bottom shell.

Preferably, the lower end of the installation bottom shell is further provided with a circuit installation block, the circuit installation block is provided with a lead hole, and a coaxial cable connected with the L NA main board penetrates through the lead hole.

Preferably, the 4G main antenna is a MONOPO L E monopole antenna.

Preferably, the 4G diversity antenna is a PIFI antenna.

Preferably, the GNSS ceramic antenna is a circularly polarized antenna.

Compared with the prior art, the utility model, the beneficial effects are that, the utility model discloses with 4G main antenna and 4G diversity antenna interval arrangement, can improve the isolation, increased the efficiency and the gain of antenna, place the FM antenna and can improve the standing wave effect of FM antenna in the centre of 4G main antenna and diversity antenna, locate L NA mainboard outside that corresponds 4G diversity antenna with GNSS ceramic antenna, ensured the signal transmission effect under the limited condition of shark fin size space, the utility model discloses structural arrangement is reasonable, has not only ensured the signal reception effect to reduce occupation space's area, improved the compact structure nature of shark fin antenna.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

Fig. 1 is a perspective view of a multifunctional support embedded shark fin antenna according to an embodiment of the present invention.

L NA main board 100, 4G main antenna 200, main antenna bracket 210, main antenna mounting hole 211, 4G diversity antenna 300, diversity antenna bracket 310, diversity antenna mounting hole 311, FM antenna 400, GNSS ceramic antenna 500, zinc alloy base 600, mounting bottom case 700, case mounting hole 710, circuit mounting block 800 and coaxial cable 900.

Detailed Description

Here, it is to be noted that the functions, methods, and the like related to the present invention are only conventional adaptive applications of the related art. Therefore, the present invention is an improvement of the prior art, which substantially lies in the connection relationship between hardware, not in the functions and methods themselves, that is, the present invention relates to a few functions and methods, but does not include the improvements proposed in the functions and methods themselves. The present invention is described for better illustration of the function and method for better understanding of the present invention.

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.

Referring to fig. 1, the multifunctional bracket embedded shark fin antenna provided by the embodiment includes a L NA main board 100 and an antenna assembly disposed on the L NA main board 100, and the antenna 400 assembly includes a 4G main antenna 200, a 4G diversity antenna 300, an FM antenna 400, and a GNSS ceramic antenna 400, the 4G main antenna 200 and the 4G diversity antenna 300 are disposed at intervals and connected to the L NA main board 100, the FM antenna 400 is connected to the L NA main board 100 and is located between the 4G main antenna 200 and the 4G diversity antenna 300, and the GNSS ceramic antenna 400 is disposed outside the L NA main board 100 and corresponds to the 4G diversity antenna 300, in the embodiment, the 4G main antenna 200 and the 4G diversity antenna 300 are employed to form the 4GFM antenna 400, since the 4G main antenna 200 and the 4G diversity antenna 300 are disposed at intervals along the length direction of the L NA diversity antenna 100, the 4G main antenna 200 and the 4G diversity antenna 300 have a certain distance, and the isolation between the 4G main antenna 200 and the 4G diversity antenna 300 is improved, and the isolation antenna 300 is a single-stage antenna 300, and the isolation antenna 300 is capable of improving the isolation performance of the single-stage antenna 300.

It is known to those skilled in the art that since the frequency range of the FM antenna 400 is 88-108Mhz and the frequency band is low, the frequency of the FM antenna 400 is greatly different from the frequency ranges of the 4G main antenna 200 and the 4G diversity antenna 300, and therefore the placement of the FM antenna 400 between the 4G main antenna 200 and the 4G diversity FM antenna 400300 can improve the standing wave effect of the FM antenna 400.

As shown in fig. 1, since the GNSS ceramic antenna 400 has a relatively narrow bandwidth and the metal around the GNSS ceramic antenna 400 should not be higher than the height of the ceramic plate, in the present embodiment, the GNSS ceramic antenna 400 is disposed outside the L NA motherboard 100 corresponding to the 4G diversity antenna 300, so as to ensure the signal transmission effect under the condition of limited shark fin size space, in this embodiment, the GNSS ceramic antenna 400 is the circular polarization FM antenna 400.

As shown in fig. 1, in order to increase the distance between the 4G main antenna 200 and the 4G diversity antenna 300 as much as possible in a limited space, in the present embodiment, a main antenna bracket 210 is provided at the lower end of the 4G main antenna 200, the main antenna bracket 210 is provided with a main antenna mounting hole 211, the main antenna bracket 210 increases the effective area of the 4G main antenna 200, the increase in area further increases the distance between the 4G main antenna 200 and the 4G diversity antenna 300, and the isolation between the 4G main antenna 200 and the 4G diversity antenna 300 can be increased, similarly, the lower end of the 4G diversity antenna 300 is provided with a diversity antenna bracket 310, the diversity antenna bracket 310 is provided with a 4G diversity antenna mounting hole 311, the effective area of the 4G main antenna 300 is increased, the increase in area further increases the distance between the 4G main antenna 200 and the 4G diversity antenna 300, the isolation between the 4G main antenna 200 and the 4G diversity antenna 300 can be increased, the diversity antenna 200 and the diversity antenna 300 can be stably mounted on the main antenna mounting hole L, and the main antenna mounting hole L can be stably mounted on the diversity antenna 200.

In addition, since the 4G main antenna 200 and the 4G diversity antenna 300 are mounted in the form of a bracket, the distance between the GNSS ceramic antenna 400 and the 4G diversity antenna 300 can be further increased. The mutual interference between the GNSS ceramic antenna 400 and the 4G diversity FM antenna 300 may be reduced.

As described above, the FM antenna 400 is installed between the L NA motherboard 100 and the 4G main antenna 200 and the 4G diversity antenna 300, and the FM antenna 400 is provided with a pair of installation plugs at the lower end thereof, and the installation plugs are fixedly plugged on the L NA motherboard 100, so that the FM antenna 400 can be stably installed on the L NA motherboard 100 through the installation plugs.

Furthermore, in the embodiment, the outer side face of the lower end of the L NA main board 100 is provided with a copper exposing area, the lower portion of the copper exposing area is electrically connected with the zinc alloy base 600, the edge of the zinc alloy base 600 is provided with a side wall attaching portion arranged around the copper exposing area, and the side wall attaching portion is in surface contact with the copper exposing area, when the side wall attaching portion of the zinc alloy base 600 is in surface contact with the copper exposing area, the zinc alloy base 600 and the L NA main board 100 form grounding connection, in addition, the zinc alloy base 600 can be used as a shielding cover of the L NA main board 100, can play a shielding role, can reduce the influence of components on the FM antenna 400 on the L NA main board 100, and can play a dustproof and waterproof role at the.

As shown in fig. 1, the present embodiment further provides a mounting bottom case 700 disposed under the zinc alloy base 600, the edge of the mounting bottom case 700 is provided with a plurality of housing mounting holes 710 arranged around L NA motherboard 100, the mounting bottom case 700 can be used for mounting the whole shark fin antenna, further, a circuit mounting block 800 is further disposed at the lower end of the mounting bottom case 700, the circuit mounting block 800 is provided with a lead hole, a coaxial cable 900 connected with the L NA motherboard 100 is inserted into the lead hole, the coaxial cable 900 for transmitting signals can pass through the lead hole to communicate signals with the L NA motherboard 100, the mounting connection manner of the coaxial cable 900 is the prior art in the field of circuit connection, and is not described herein again.

In the description of the present application, it is to be understood that the terminology used herein is for the purpose of description only and is not intended to be interpreted as indicating or implying any relative importance or implicit indication of the number of technical features indicated. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral combinations thereof; may be an electrical connection; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the specification of the present invention, a large number of specific details are explained. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, systems, and techniques have not been shown in detail in order not to obscure an understanding of this description.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.

Claims

1. A multifunctional support embedded shark fin antenna is characterized by comprising an L NA main board (100) and an antenna assembly arranged on a L NA main board (100);

the antenna assembly comprises a 4G main antenna (200), a 4G diversity antenna (300), an FM antenna (400) and a GNSS ceramic antenna (500), wherein the 4G main antenna (200) and the 4G diversity antenna (300) are arranged at intervals and are respectively connected with an L NA main board (100), the FM antenna (400) is connected with a L NA main board (100) and is located between the 4G main antenna (200) and the 4G diversity antenna (300), and the GNSS ceramic antenna (500) is arranged on the outer side of the L NA main board (100) corresponding to the 4G diversity antenna (300).

2. The multi-function cradle mounted shark fin antenna of claim 1, wherein:

the antenna comprises a 4G main antenna (200), and is characterized in that a main antenna bracket (210) which extends to the outer side of the 4G main antenna (200) is arranged at the lower end of the 4G main antenna (200), and a main antenna mounting hole (211) is formed in the main antenna bracket (210).

3. The multi-function cradle mounted shark fin antenna of claim 1, wherein:

the lower end of the 4G diversity antenna (300) is provided with a diversity antenna bracket (310) which extends and is arranged at the outer side of the 4G diversity antenna (300), and a diversity antenna mounting hole (311) is formed in the diversity antenna bracket (310).

4. The multi-function cradle mounted shark fin antenna of claim 1, wherein:

the lower end of the FM antenna (400) is provided with a pair of installation inserting parts, and the installation inserting parts are fixedly inserted on an L NA main board (100).

5. The multi-function cradle mounted shark fin antenna of claim 1, wherein:

the outer side face of the lower end of the L NA main board (100) is provided with a copper exposing area, a zinc alloy base (600) is arranged below the copper exposing area and electrically connected, the edge of the zinc alloy base (600) is provided with a side wall attaching portion arranged around the copper exposing area, and the side wall attaching portion is in surface contact with the copper exposing area.

6. The multifunctional support embedded shark fin antenna as claimed in claim 1, further comprising a mounting bottom case (700) arranged below the zinc alloy base (600), wherein the edge of the mounting bottom case (700) is provided with a plurality of case mounting holes (710) arranged around L NA main board (100).

7. The shark fin antenna with the embedded multifunctional bracket as claimed in claim 6, wherein a circuit mounting block (800) is further arranged at the lower end of the mounting bottom shell (700), a lead hole is formed in the circuit mounting block (800), and a coaxial cable (900) connected with an L NA main board (100) penetrates through the lead hole.

8. The multi-function cradle mounted shark fin antenna of any of claims 1 to 7, wherein the 4G main antenna (200) is a MONOPO L E monopole antenna.

9. The multi-function cradle mounted shark fin antenna of any of claims 1-7, wherein: the 4G diversity antenna (300) is a PIFI antenna.

10. The multi-function cradle mounted shark fin antenna of any of claims 1-7, wherein: the GNSS ceramic antenna (500) is a circularly polarized antenna.