CN213278402U - GNSS choke coil antenna - Google Patents
GNSS choke coil antenna Download PDFInfo
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- CN213278402U CN213278402U CN202022422211.8U CN202022422211U CN213278402U CN 213278402 U CN213278402 U CN 213278402U CN 202022422211 U CN202022422211 U CN 202022422211U CN 213278402 U CN213278402 U CN 213278402U
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Abstract
The utility model discloses a GNSS choke coil antenna, including interior antenna house, dielectric antenna, PCB base plate, low noise amplifier, altitude controller, outer antenna house and choke coil, interior antenna house the dielectric antenna PCB base plate low noise amplifier altitude controller with the choke coil all quilt the outer antenna house surrounds. The utility model discloses a GNSS choke coil antenna, it passes through the matching before antenna and choke coil, can effectively restrain the multipath effect that the environment arouses, and the interference killing feature of antenna, phase place central stability obtain obviously improving.
Description
Technical Field
The utility model belongs to the technical field of the antenna, concretely relates to GNSS (Global Navigation Satellite System ) choke coil antenna.
Background
In 31 months 7 in 2020, the Beidou third-grade global satellite navigation system which is independently constructed and operated in China is completely built, and the China Beidou opens a new chapter of high-quality service global and benefiting mankind. Under the general planning of the national ministry of industry and communications of 'road intellectualization', three operators and related operators of intelligent driving platforms have started the layout of foundation reinforced stations in the recent years, the layout of base stations is completed by 2500 network-searching base stations, the number of 4400 mobile base stations in China and 3000 telecommunication planning are respectively provided, high-precision positioning is inevitably applied in the fields of unmanned driving, geographical surveying and mapping, aerospace and the like, the performance and stability of an antenna increasingly influence the positioning precision of a positioning system, and the antenna with high precision, interference resistance and high reliability is an urgent requirement at present.
The publication number is: CN210628506U, entitled multi-network combined GNSS antenna, its technical solution discloses "the antenna includes: the GNSS antenna comprises a GNSS antenna (1), a choke coil (2) and a specific communication antenna (3), wherein the bottom end of the GNSS antenna (1) is installed on a mounting bottom plate (4) of the choke coil (2), the specific communication antenna (3) is installed on a tuning director (5) of the GNSS antenna (1), and a feed line of the specific communication antenna (3) passes through the center of the GNSS antenna (1) and is connected to the bottom of the choke coil (2); the specific communication antenna (3) is set as an S-band antenna, the S-band antenna including: the antenna comprises a supporting medium (6), a first frequency band main quadrifilar helix unit (7), a second frequency band parasitic quadrifilar helix unit (19) and a grounding plate (20); the supporting medium (6) is fixed on the grounding plate (20); the first frequency band main quadrifilar helix unit (7) and the second frequency band parasitic quadrifilar helix unit (19) are wound on the supporting medium (6); the first frequency band main quadrifilar helix unit (7) and the second frequency band parasitic quadrifilar helix unit (19) are both connected with a grounding plate (20) and are excited through electromagnetic coupling; the first frequency band main quadrifilar helix unit (7) is used for exciting low frequency, and the second frequency band parasitic quadrifilar helix unit (19) is used for exciting high frequency'.
Taking the above-mentioned utility model patent as an example, although it mentions GNSS antenna and choke coil, its technical solution is different from the utility model. Therefore, the above problems are further improved.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a main aim at provides a GNSS choke coil antenna, its matching before through antenna and choke coil can effectively restrain the multipath effect that the environment arouses, and the interference killing feature of antenna, phase place center stability obtain obviously improving.
Another object of the present invention is to provide a GNSS choke antenna, which is provided with a height adjuster, and can adjust the relative height between a dielectric antenna and a choke coil, thereby adjusting the radiation pattern, the polarization gain front-to-back ratio, the roll-off coefficient, and the like of a control-adjustable antenna.
Another object of the present invention is to provide a GNSS choke antenna, wherein the dielectric antenna is located at the center of the choke, and the choke adopts the design of the ring-shaped groove, so as to improve the gain of the antenna at 20 ° elevation and the out-of-roundness of the axial ratio.
Another object of the utility model is to provide a GNSS choke coil antenna, its dielectric antenna is the double-deck four dielectric antenna who presents a little to still be equipped with low noise amplifier, have the characteristics that the phase place center is stable, the uniformity is good, be convenient for batch production.
In order to achieve the above object, the utility model provides a GNSS choke antenna, including interior antenna house, dielectric antenna, PCB base plate, low noise amplifier, altitude controller, outer antenna house and choke, wherein:
the inner radome, the dielectric antenna, the PCB substrate, the low noise amplifier, the height adjuster, and the choke coil are all surrounded by the outer radome;
the low noise amplifier is fixedly installed on one side of the PCB substrate, the PCB substrate is installed on the height adjuster (the height adjuster can adjust the relative height between the dielectric antenna and the choke coil, so that the radiation pattern, the polarization gain front-to-back ratio, the roll-off coefficient and the like of the antenna can be adjusted and controlled), the dielectric antenna is surrounded by the inner antenna housing, the inner antenna housing is located on one side of the PCB substrate away from the dielectric antenna, and the choke coil is distributed around the inner antenna housing.
As a further preferable technical solution of the above technical solution, the choke coil includes a first annular groove, a second annular groove, a third annular groove, and a fourth annular groove, the first annular groove, the second annular groove, the third annular groove, and the fourth annular groove are sequentially distributed around the inner radome from near to far, and diameters of the first annular groove, the second annular groove, the third annular groove, and the fourth annular groove are sequentially from small to large.
As a further preferable technical solution of the above technical solution, a first annular wall is provided between the first annular groove and the second annular groove, a second annular wall is provided between the second annular groove and the third annular groove, a third annular wall is provided between the third annular groove and the fourth annular groove, a fourth annular wall is provided on one side of the fourth annular groove away from the third annular groove, and the diameters of the first annular wall, the second annular wall, the third annular wall and the fourth annular wall are sequentially from small to large.
As a further preferable technical solution of the above technical solution, the first annular wall is provided with first choke grooves which are uniformly distributed, the second annular wall is provided with second choke grooves which are uniformly distributed, and the third annular wall is provided with third choke grooves which are uniformly distributed.
As a further preferable mode of the above-described mode, the number of the first choke grooves, the second choke grooves, and the third choke grooves is 4, the first choke grooves and the second choke grooves are distributed in the same direction, and an angle difference of 45 ° is provided between the third choke grooves and the adjacent second choke grooves.
Drawings
Fig. 1 is a cross-sectional view of a GNSS choke antenna of the present invention.
Fig. 2 is a top view of a choke coil of a GNSS choke coil antenna according to the present invention.
The reference numerals include: 1. an inner radome; 2. a dielectric antenna; 3. a PCB substrate; 4. a low noise amplifier; 5. a height adjuster; 6. an outer radome; 7. a choke coil; 71. a first annular groove; 72. a second annular groove; 73. a third annular groove; 74. a fourth annular groove; 75. a first annular wall; 76. a second annular wall; 77. a third annular wall; 78. a fourth annular wall; 781. a first choke groove; 782. a second choke groove; 783. and a third choke groove.
Detailed Description
The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art. The basic principles of the invention, as defined in the following description, may be applied to other embodiments, variations, modifications, equivalents and other technical solutions without departing from the spirit and scope of the invention.
The utility model discloses a GNSS choke coil antenna, below combine preferred embodiment, further describe utility model's concrete embodiment.
Referring to fig. 1 of the drawings, fig. 1 is a cross-sectional view of a GNSS choke antenna of the present invention, and fig. 2 is a plan view of a choke coil of the GNSS choke antenna of the present invention.
In the embodiments of the present invention, those skilled in the art will note that the dielectric antenna and the low noise amplifier, etc. according to the present invention can be regarded as the prior art.
Preferred embodiments.
The utility model discloses a GNSS choke coil antenna, including interior antenna house 1, dielectric antenna 2, PCB base plate 3, low noise amplifier 4, altitude controller 5, outer antenna house 6 and choke coil 7, wherein:
the inner radome 1, the dielectric antenna 2, the PCB substrate 3, the low noise amplifier 4, the height adjuster 5, and the choke coil 7 are all surrounded by the outer radome 6;
one side fixed mounting of PCB base plate 3 has dielectric antenna 2 and PCB base plate 3 keeps away from one side fixed mounting of dielectric antenna 2 has low noise amplifier 4, PCB base plate 3 install in altitude controller 5 (altitude controller 5 can adjust dielectric antenna 2 with relative height between choke 7 to the radiation pattern, polarization gain front-to-back ratio and the roll-off coefficient etc. of adjustable control antenna), dielectric antenna 2 by interior antenna house 1 surround and interior antenna house 1 is located dielectric antenna 2 keeps away from one side of PCB base plate 3, distribute all around of interior antenna house 1 choke 7 (interior antenna house 1 is installed wholly dielectric antenna 2 top plays dustproof and waterproof effect).
Specifically, the choke coil 7 includes a first annular groove 71, a second annular groove 72, a third annular groove 73 and a fourth annular groove 74, the first annular groove 71, the second annular groove 72, the third annular groove 73 and the fourth annular groove 74 are sequentially distributed around the inner radome 1 from near to far, and the diameters of the first annular groove 71, the second annular groove 72, the third annular groove 73 and the fourth annular groove 74 are sequentially from small to large.
More specifically, a first annular wall 75 is arranged between the first annular groove 71 and the second annular groove 72, a second annular wall 76 is arranged between the second annular groove 72 and the third annular groove 73, a third annular wall 77 is arranged between the third annular groove 73 and the fourth annular groove 74, a fourth annular wall 78 is arranged on one side of the fourth annular groove 74 far away from the third annular groove 72, and the diameters of the first annular wall 75, the second annular wall 76, the third annular wall 77 and the fourth annular wall 78 are sequentially increased from small to large.
Further, the first annular wall 75 is provided with first choke grooves 781 uniformly distributed, the second annular wall 76 is provided with second choke grooves 782 uniformly distributed, and the third annular wall 77 is provided with third choke grooves 783 uniformly distributed.
Further, the number of the first choke groove 781, the second choke groove 782, and the third choke groove 783 is 4, the distribution direction of the first choke groove 781 and the second choke groove 782 is the same, and an angle difference of 45 ° is provided between the third choke groove 783 and the adjacent second choke groove 782.
It should be noted that the technical features such as the dielectric antenna and the low noise amplifier related to the present invention should be regarded as the prior art, and the specific structure, the operation principle, the control mode and the spatial arrangement mode of these technical features may be adopted in the conventional selection in the field, which should not be regarded as the invention point of the present invention, and the present invention is not further specifically described in detail.
It will be apparent to those skilled in the art that modifications and variations can be made in the above-described embodiments, or some features of the invention may be substituted or omitted, and any modification, substitution, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.
Claims (5)
1. The GNSS choke coil antenna is characterized by comprising an inner antenna housing, a dielectric antenna, a PCB substrate, a low-noise amplifier, a height adjuster, an outer antenna housing and a choke coil, wherein:
the inner radome, the dielectric antenna, the PCB substrate, the low noise amplifier, the height adjuster, and the choke coil are all surrounded by the outer radome;
one side fixed mounting of PCB base plate has the dielectric antenna and one side fixed mounting that the dielectric antenna was kept away from to the PCB base plate has low noise amplifier, the PCB base plate install in altitude controller, the dielectric antenna by interior radome surrounds and interior radome is located the dielectric antenna keeps away from one side of PCB base plate, distribute all around of interior radome choke coil.
2. The GNSS choke antenna according to claim 1, wherein the choke includes a first annular groove, a second annular groove, a third annular groove, and a fourth annular groove, the first annular groove, the second annular groove, the third annular groove, and the fourth annular groove are distributed around the inner radome in the order from the near to the far, and the diameters of the first annular groove, the second annular groove, the third annular groove, and the fourth annular groove are in the order from the small to the large.
3. The GNSS choke antenna of claim 2, wherein a first annular wall is disposed between the first annular groove and the second annular groove, a second annular wall is disposed between the second annular groove and the third annular groove, a third annular wall is disposed between the third annular groove and the fourth annular groove, a fourth annular wall is disposed on a side of the fourth annular groove away from the third annular groove, and diameters of the first annular wall, the second annular wall, the third annular wall and the fourth annular wall are sequentially from small to large.
4. A GNSS choke antenna according to claim 3, characterized in that the first annular wall is provided with evenly distributed first choke grooves, the second annular wall is provided with evenly distributed second choke grooves, and the third annular wall is provided with evenly distributed third choke grooves.
5. A GNSS choke antenna as claimed in claim 4, wherein the number of the first choke grooves, the second choke grooves and the third choke grooves is 4, the first choke grooves and the second choke grooves are distributed in the same direction, and an angle difference of 45 ° is provided between the third choke grooves and the adjacent second choke grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022422211.8U CN213278402U (en) | 2020-10-27 | 2020-10-27 | GNSS choke coil antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022422211.8U CN213278402U (en) | 2020-10-27 | 2020-10-27 | GNSS choke coil antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213278402U true CN213278402U (en) | 2021-05-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022422211.8U Active CN213278402U (en) | 2020-10-27 | 2020-10-27 | GNSS choke coil antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213278402U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114094320A (en) * | 2021-11-24 | 2022-02-25 | 上海海积信息科技股份有限公司 | GNSS antenna and combined antenna |
-
2020
- 2020-10-27 CN CN202022422211.8U patent/CN213278402U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114094320A (en) * | 2021-11-24 | 2022-02-25 | 上海海积信息科技股份有限公司 | GNSS antenna and combined antenna |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Li Wenbo Inventor after: Chen Fangyuan Inventor after: Zhou Xuegang Inventor before: Li Wenbo Inventor before: Chen Fangyuan Inventor before: Zhou Xuegang |
|
| CB03 | Change of inventor or designer information |