CN205159505U - Big dipper dual -frenquency receiving antenna - Google Patents
Big dipper dual -frenquency receiving antenna Download PDFInfo
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- CN205159505U CN205159505U CN201521007407.3U CN201521007407U CN205159505U CN 205159505 U CN205159505 U CN 205159505U CN 201521007407 U CN201521007407 U CN 201521007407U CN 205159505 U CN205159505 U CN 205159505U
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Abstract
The utility model relates to a big dipper dual -frenquency receiving antenna, has one by the board cavity body and antenna shroud at the bottom of the antenna to closing the chamber shell that constitutes, the chamber shell is equipped with the TNC -K radio frequency connector outward, be provided with a B1 antenna board and a B3 antenna board according to last the next stromatolite in the shell of chamber, the feed hole of B1 antenna board and B3 antenna board is connected with the B1 aerial input end and the B3 aerial input end of the TNC -K radio frequency connector of chamber shell peripheral hardware through B1 coaxial probe and B3 coaxial probe respectively. The utility model discloses a structure of antenna matching paster single -point feed, the mode of adjusting through the perturbation realize the circular polarization of antenna, and the product has simple structure, with low costs, advantage such as performance is good.
Description
Technical field
The utility model content belongs to satellite communication apparatus transmission technique field, relate to a kind of circularly polarized antenna device for Beidou satellite navigation system, particularly a kind of high-performance Big Dipper dual frequency reception antenna with easy structure being applicable to big-dipper satellite time service project.
Background technology
Beidou satellite navigation system is the satellite navigation system of China's independent research, has the functions such as navigation, location, time service.The signal of Beidou satellite system satellite launch is circularly polarised wave, the form of usual employing microstrip antenna or helical antenna manufactures and designs reception antenna, helical antenna is owing to needing certain space, how restricted applied environment is, and antenna body is complicated, high cost, therefore in most cases can adopt microstrip antenna, and traditional microstrip antenna is due to the high frequency sheet material, the complicated feed that need to select performance high and need certain metallic ground, structure is still relatively complicated, cost is also higher, has influence on the serviceability of antenna to a certain extent.
Utility model content
The purpose of this utility model is to solve prior art Problems existing, provides the Big Dipper dual frequency reception antenna that a kind of structure is simple, cost is low, serviceability is good.
For achieving the above object and adopt technical solution be such: the Big Dipper dual frequency reception antenna provided has one by Antenna baseplate cavity and the involutory chamber shell formed of antenna cover cap, TNC-K radio frequency connector is provided with outside the shell of chamber, in the shell of chamber by the next lamination be provided with a B1 antenna plate and a B3 antenna plate, the power feed hole of B1 antenna plate and B3 antenna plate is connected respectively by the B1 antenna input of B1 coaxial probe and B3 coaxial probe and the TNC-K radio frequency connector of chamber shell peripheral hardware and B3 antenna input, in order to complete the reception to big-dipper satellite B1/B3 signal.
In above-mentioned Big Dipper dual frequency reception antenna structure, B1 antenna plate and B3 antenna plate all adopt microwave complex media plate to be made by etching and processing, B1 antenna plate has B1 ground hole and B1 power feed hole, B3 antenna plate has B3 ground hole, B1 feed via hole, B3 power feed hole is also provided with short circuit isolation circle, B1 feed is had through hole and B3 feed via hole in Antenna baseplate cavity bottom surface, on the body of rod of B1 coaxial probe and B3 coaxial probe, cover has B1 spacer medium and B3 spacer medium respectively, one end of B1 coaxial probe is welded at B1 power feed hole place with B1 antenna plate, the other end is connected with the B1 antenna input of chamber shell peripheral hardware TNC-K radio frequency connector through hole with the B1 feed on Antenna baseplate cavity bottom surface through the B1 feed via hole in B3 antenna plate successively, one end of B3 coaxial probe is welded at B3 power feed hole place with B3 antenna plate, the other end is connected with the B3 antenna input of chamber shell peripheral hardware TNC-K radio frequency connector through the B3 feed via hole on Antenna baseplate cavity bottom surface.
In above-mentioned Big Dipper dual frequency reception antenna structure, B1 antenna plate and B3 antenna plate all adopt dielectric constant be 4.2 ~ 4.5 FR4 complex media plate made by etching and processing, the thickness of sheet material is 3mm.
Compared with prior art, Big Dipper dual frequency reception antenna described in the utility model adopts the structure of antenna match paster single-point feedback, the mode regulated by perturbation realizes the circular polarization (forming left-hand circular polarization or right-handed circular polarization) of antenna, simplifies product structure; Because the utility model is applicable to time service project, lower to the requirement of antenna index, in order to save cost, the base material of B1 antenna plate and B3 antenna plate all adopt dielectric constant be 4.2 ~ 4.5 FR4 complex media plate made by etching and processing; The principle that thicker based on sheet material, the gain of antenna is higher, bandwidth is narrower, in order to can the bandwidth sum gain index of balancing antenna, therefore sheet metal thickness be chosen for 3mm; In addition, for the selection of ground connection, consider the factor of space and cost, the utility model increases short circuit isolation circle in B3 antenna plate, saves the metal structure of ground connection, simplifies the structure further and reduce cost.
Accompanying drawing explanation
Fig. 1 is the assembling decomposition texture schematic diagram of the utility model specific embodiment.
Fig. 2 is appearance schematic diagram of the present utility model.
Fig. 3 is the top view of B1 antenna plate.
Fig. 4 is the top view of B3 antenna plate.
Fig. 5 is the top view of Antenna baseplate cavity.
In accompanying drawing, the title of each number designation respectively: 1-antenna cover cap; 2-trip bolt; 3-B1 antenna plate, 31-B1 ground hole, 32-B1 power feed hole; 4-B3 antenna plate, 41-B3 ground hole, 42-short circuit isolation circle, 43-B1 feed via hole, 44-B3 power feed hole; 5-mounting screw, 6-Antenna baseplate cavity, 61-B1 feed passes hole, 62-B3 feed via hole; 7-B1 coaxial probe; 8-B1 spacer medium; 9-B3 coaxial probe; 10-B3 spacer medium; 11-TNC-K radio frequency connector.
Embodiment
Below in conjunction with accompanying drawing, the utility model content is described further, but practical application structure of the present utility model is not limited in illustrated embodiment.
See accompanying drawing, Big Dipper dual frequency reception antenna described in the utility model is specifically made up of a metal Antenna baseplate cavity 6, two antenna substrates (B1 antenna plate 3 and B3 antenna plate 4), an antenna cover cap 1 and the partial component such as B1 coaxial probe 7, B3 coaxial probe 9.Be provided with TNC-K radio frequency connector 11 outside Antenna baseplate cavity 6, Antenna baseplate cavity 6 bottom surface have B1 feed through hole 61 and B3 feed via hole 62.The B1 antenna plate 3 be made up of etching FR4 complex media plate and B3 antenna plate 4 from top to bottom lamination are arranged on the bottom surface of Antenna baseplate cavity 6, B1 antenna plate 3 has B1 ground hole 31 and B1 power feed hole 32, B3 antenna plate 4 has B3 ground hole 41, B1 feed via hole 43, B3 power feed hole 44 be provided with short circuit isolation circle 42.On the body of rod of B1 coaxial probe 7 and B3 coaxial probe 9, cover has B1 spacer medium 8 and B3 spacer medium 10 respectively.In concrete syndeton, one end of B1 coaxial probe 7 is welded at B1 power feed hole 32 place with B1 antenna plate 3, the other end is connected with the B1 antenna input of chamber shell peripheral hardware TNC-K radio frequency connector 11 through hole 61 with the B1 feed on Antenna baseplate cavity 6 bottom surface through the B1 feed via hole 43 in B3 antenna plate 4 successively, one end of B3 coaxial probe 9 is directly welded at B3 power feed hole 44 place with B3 antenna plate 4, and the other end is connected with the B3 antenna input of chamber shell peripheral hardware TNC-K radio frequency connector 11 through the B3 feed via hole 62 on Antenna baseplate cavity 6 bottom surface.During actual installation; the B1 antenna plate 3 and B3 antenna plate 4 trip bolt 2 that set annexation are contained in the bottom surface of Antenna baseplate cavity 6; antenna cover cap 1 and Antenna baseplate cavity 6 are coupled together by mounting screw 5 is involutory, protection antenna can normally use under the environment such as rain, snow again.
Claims (3)
1. a Big Dipper dual frequency reception antenna, it is characterized in that: there is one by Antenna baseplate cavity (6) and the involutory chamber shell formed of antenna cover cap (1), TNC-K radio frequency connector (11) is provided with outside the shell of chamber, in the shell of chamber by the next lamination be provided with a B1 antenna plate (3) and a B3 antenna plate (4), the power feed hole of B1 antenna plate (3) and B3 antenna plate (4) is connected respectively by the B1 antenna input of B1 coaxial probe (7) and B3 coaxial probe (9) and the TNC-K radio frequency connector (11) of chamber shell peripheral hardware and B3 antenna input.
2. Big Dipper dual frequency reception antenna according to claim 1, it is characterized in that: B1 antenna plate (3) and B3 antenna plate (4) all adopt microwave complex media plate to be made by etching and processing, B1 antenna plate (3) has B1 ground hole (31) and B1 power feed hole (32), B3 antenna plate (4) has B3 ground hole (41), B1 feed via hole (43), B3 power feed hole (44) is also provided with short circuit isolation circle (42), B1 feed is had through hole (61) and B3 feed via hole (62) in Antenna baseplate cavity (6) bottom surface, on the body of rod of B1 coaxial probe (7) and B3 coaxial probe (9), cover has B1 spacer medium (8) and B3 spacer medium (10) respectively, one end of B1 coaxial probe (7) is welded at B1 power feed hole (32) place with B1 antenna plate (3), the other end is connected with the B1 antenna input in chamber shell peripheral hardware TNC-K radio frequency connector (11) through hole (61) with the B1 feed on Antenna baseplate cavity (6) bottom surface through the B1 feed via hole (43) in B3 antenna plate (4) successively, one end of B3 coaxial probe (9) is welded at B3 power feed hole (44) place with B3 antenna plate (4), the other end is connected with the B3 antenna input in chamber shell peripheral hardware TNC-K radio frequency connector (11) through the B3 feed via hole (62) on Antenna baseplate cavity (6) bottom surface.
3. Big Dipper dual frequency reception antenna according to claim 1 and 2, it is characterized in that: B1 antenna plate (3) and B3 antenna plate (4) all adopt dielectric constant be 4.2 ~ 4.5 FR4 complex media plate made by etching and processing, the thickness of sheet material is 3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521007407.3U CN205159505U (en) | 2015-12-08 | 2015-12-08 | Big dipper dual -frenquency receiving antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521007407.3U CN205159505U (en) | 2015-12-08 | 2015-12-08 | Big dipper dual -frenquency receiving antenna |
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| Publication Number | Publication Date |
|---|---|
| CN205159505U true CN205159505U (en) | 2016-04-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521007407.3U Active CN205159505U (en) | 2015-12-08 | 2015-12-08 | Big dipper dual -frenquency receiving antenna |
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| CN (1) | CN205159505U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108461924A (en) * | 2018-03-15 | 2018-08-28 | 深圳市维力谷无线技术股份有限公司 | A kind of satellite dual-band antenna |
| CN109167160A (en) * | 2018-08-22 | 2019-01-08 | 广州中海达卫星导航技术股份有限公司 | Antenna assembly and GNSS measure antenna |
-
2015
- 2015-12-08 CN CN201521007407.3U patent/CN205159505U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108461924A (en) * | 2018-03-15 | 2018-08-28 | 深圳市维力谷无线技术股份有限公司 | A kind of satellite dual-band antenna |
| CN108461924B (en) * | 2018-03-15 | 2024-03-08 | 深圳市维力谷无线技术股份有限公司 | Satellite double-frequency antenna |
| CN109167160A (en) * | 2018-08-22 | 2019-01-08 | 广州中海达卫星导航技术股份有限公司 | Antenna assembly and GNSS measure antenna |
| CN109167160B (en) * | 2018-08-22 | 2020-10-02 | 广州中海达卫星导航技术股份有限公司 | Antenna device and GNSS measuring antenna |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |