CN109713429A - A kind of capacitive coupling broadband satellite navigation antenna - Google Patents
A kind of capacitive coupling broadband satellite navigation antenna Download PDFInfo
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- CN109713429A CN109713429A CN201811615870.4A CN201811615870A CN109713429A CN 109713429 A CN109713429 A CN 109713429A CN 201811615870 A CN201811615870 A CN 201811615870A CN 109713429 A CN109713429 A CN 109713429A
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- antenna
- radiant panel
- satellite navigation
- capacitive coupling
- coupling piece
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Abstract
The present invention provides a kind of capacitive coupling broadband satellite navigation antennas, including radiant panel, feed stud, nut, and horizontal coupling piece tilts coupling piece and printed wiring bottom plate；Radiant panel is double side printed wiring board, front is circular metal copper clad layers, there are four round feed metal pieces at the back side, and it is connected by metallization VIA with positive four round feed metal pieces, there are capacitive coupling gaps between front circular metal copper clad layers and four round feed metal pieces, radiation fin surrounding is uniformly distributed inclination coupling piece and horizontal coupling piece, the present invention solves antenna broadband very well, the problems such as low cost and phase center elevation difference, emphasis gives a kind of capacitive coupling broadband satellite navigation antenna design scheme, realize the broadband of antenna, low cost and lightweight.
Description
Technical field
The present invention relates to satellite navigation aerial fields, and in particular to arrives a kind of capacitive coupling broadband satellite navigation antenna.
Background technique
With preliminarily forming for No. three satellite navigation system overlay networks of Beidou, the reception band limits of Beidou satellite navigation
It has obtained further widening, especially B2 frequency range, in addition to remaining Beidou two 1207.14MHz center frequency points, also add
1176.45MHz and 1191.795MHz frequency range.Along with the progress of science and technology, the information such as position, time increasingly highlight value, with
The relevant application of Beidou navigation is greatly developed, and is obtained in hot fields demands such as high-precision mapping, unmanned automatic driving, unmanned planes
Great exploitation.
Front end component of the antenna as receiver, performance quality directly affect receiver performance.Conventional satellite navigation
Two panels laminated antenna scheme up and down is common in receiving antenna design scheme, upper layer antenna is corresponding to receive 1540~1610MHz high
Band satellite signal；Lower layer's antenna is corresponding to receive 1170~1280MHz low-frequency range satellite-signal.This scheme not only antenna cost
Height, quality is big, bandwidth relative narrower, and at the sideband far from design centre frequency point, antenna gain decline is obvious.In order to further
The production cost for reducing antenna simultaneously widens bandwidth of operation, using mature general processing technology become very it is necessary to.
Summary of the invention
In order to solve above-mentioned insufficient defect, the present invention provides a kind of capacitive coupling broadband satellite navigation antenna, the days
Line has that work belt is wide, and good axis can be widely applied for defending than performance, stable phase center, lower production costs
The related fieldss such as star location navigation, satellite communication and mobile communication.
The present invention provides a kind of capacitive coupling broadband satellite navigation antennas, including radiant panel, feed stud, nut, water
Flat coupling piece tilts coupling piece and printed wiring bottom plate；Radiant panel is double side printed wiring board, and front is that circular metal covers copper
Layer, there are four round feed metal pieces at the back side, and are connected by metallization VIA with positive four round feed metal pieces, just
There are capacitive coupling gap between face circular metal copper clad layers and four round feed metal pieces, radiation fin surrounding, which is uniformly distributed, inclines
Oblique coupling piece and horizontal coupling piece.
Above-mentioned antenna, wherein the radiant panel plate is FR4 plate or microwave plate, and radiant panel outline border shape is circle
Or it is rectangular.
Above-mentioned antenna, wherein four inclinations coupling piece is successively separated by 90 degree and is distributed in radiant panel surrounding, passes through tune
The distance of section inclination coupling piece and radiant panel.
Above-mentioned antenna, wherein four horizontal coupling pieces are successively separated by 90 degree and are distributed in radiant panel surrounding, pass through tune
The height of horizontal coupling piece adjusts the frequency of Antenna Operation, and horizontal coupling piece makes of printed circuit board or metal plate.
Above-mentioned antenna, wherein the printed wiring plate upper surface is metal copper clad layers, and the back side is the transmission network of antenna
Network.
The invention has the following advantages: the present invention solves antenna broadband, low cost and phase center elevation very well
The problems such as difference, emphasis give a kind of capacitive coupling broadband satellite navigation antenna design scheme, realize antenna it is broadband,
Low cost and lightweight.Compared with traditional lamination high-precision antenna scheme, antenna axial ratio bandwidth and bandwidth of operation covering 1.1~
1.7GHz covers the satellite navigation system of current mainstream, to satellite navigation equipment for user promote and apply, positioning terminal it is low at
Originally, lightness provides effective way；Meanwhile design scheme of the invention can be applied in other dependent fields of this field
Scape, such as mobile communication, satellite communication etc. can play the role of good broadband, lightness, low cost.
Detailed description of the invention
Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, the present invention and its feature, outer
Shape and advantage will become more apparent upon.Identical label indicates identical part in all the attached drawings.Not deliberately proportionally
Draw attached drawing, it is preferred that emphasis is show the gist of the present invention.
Fig. 1 is whole design figure of the present invention；
Fig. 2 is overall top view of the present invention；
Fig. 3 is side view of the invention；
Fig. 4 is radiant panel front view of the present invention；
Fig. 5 is radiant panel dorsal view of the present invention；
Fig. 6 is feeding network explanatory diagram of the invention.
Specific embodiment
In the following description, a large amount of concrete details are given so as to provide a more thorough understanding of the present invention.So
And it is obvious to the skilled person that the present invention may not need one or more of these details and be able to
Implement.In other examples, in order to avoid confusion with the present invention, for some technical characteristics well known in the art not into
Row description.
In order to thoroughly understand the present invention, detailed step and detailed structure will be proposed in following description, so as to
Illustrate technical solution of the present invention.Presently preferred embodiments of the present invention is described in detail as follows, however other than these detailed descriptions, this
Invention can also have other embodiments.
A kind of capacitive coupling broadband satellite navigation antenna provided by the invention, including radiant panel feed stud, nut, water
Flat coupling piece tilts coupling piece and printed wiring bottom plate；Radiant panel is double side printed wiring board, it is characterized in that: front is circle
Metal copper clad layers, there are four round feed metal pieces at the back side, and pass through metallization VIA and positive four round feed metals
Piece is connected, and there are capacitive coupling gap, radiation fin surroundings between front circular metal copper clad layers and four round feed metal pieces
It is uniformly distributed inclination coupling piece and horizontal coupling piece.Stud is fed in addition to feeding as feed to radiant panel, is also made as fixed
With top is secured with nuts, and common metal stud can be used as feed stud.Radiant panel plate can select FR4 plate can also be with
Select microwave plate, radiant panel outline border shape can be circle be also possible to it is rectangular.Four inclination coupling pieces are successively separated by 90 degree
It is distributed in radiant panel surrounding, by adjusting the distance of inclination coupling piece and radiant panel, antenna axial ratio characteristic can be improved, tilt coupling
Closing piece can be made of printed circuit board or metal plate.Four horizontal coupling pieces are successively separated by 90 degree and are distributed in radiant panel four
Week, the frequency of the adjustable Antenna Operation of height by adjusting horizontal coupling piece, horizontal coupling piece can use printed circuit
Plate or metal plate production.Printed wiring plate upper surface is metal copper clad layers, and the back side is the feeding network of antenna, using wiring board
Processing technology is realized.After radiant panel receives spatial electromagnetic wave, 90 degree of electric bridges of equal function point are fed back to by four feed studs,
Wherein two paths of signals waits 90 degree of electric bridges synthesis of function point signal all the way by one, and in addition two paths of signals passes through another equal function point 90
Electric bridge synthesis signal all the way is spent, two-way composite signal waits 90 degree of electric bridges of function point finally to exist by 90 degree of phase-shift networks and one
Right-handed circular polarization signal all the way is synthesized at antennal interface.Two panels up and down is common in conventional satellite navigation receiving antenna design scheme
Laminated antenna scheme, upper layer antenna is corresponding to receive 1540~1610MHz high band satellite-signal；Lower layer's antenna is corresponding to receive 1170
~1280MHz low-frequency range satellite-signal.Not only antenna is at high cost for this scheme, and quality is big, bandwidth relative narrower, in far from design
At the sideband of heart frequency point, antenna gain decline is obvious.The present invention is compared with traditional lamination high-precision antenna scheme, antenna axial ratio band
Wide and bandwidth of operation covers 1.1~1.7GHz, covers the satellite navigation system of current mainstream, pushes away to satellite navigation equipment for user
Wide application, low cost, the lightness of positioning terminal provide effective way.The present invention gives a kind of capacitive coupling broadband satellites
Navigation antenna.The antenna has the features such as broadband, inexpensive and lightweight, can be widely applied for satellite positioning navigation, moves
The related fieldss such as dynamic communication, satellite communication；Given prominence to the key points antenna in broadband, characteristic of low cost, can be completely using print
The general raw material of brush circuit board manufacturing process and market, production cost is low, is conducive to the large-scale application of product, has good
Economic benefit.
A specific embodiment presented below
Embodiment 1
The present invention includes radiant panel 1, feeds stud 5, and nut 6 tilts coupling piece 7, horizontal coupling piece 8 and printed wiring bottom
Plate 9；Radiant panel 1 is double side printed wiring board, and 1 front of radiant panel is circular metal copper clad layers, and there are four round feed gold at the back side
Belong to piece 4, and is connected by metallization VIA 3 with positive four round feed metal pieces 4, front circular metal copper clad layers and four
There are capacitive coupling gap 2 between a circle feed metal piece 4,1 surrounding of radiation fin is uniformly distributed inclination coupling piece 7 and horizontal coupling
Close piece 8.
In the specific implementation process, feed stud 5 is also used as fixed function, top in addition to feeding as feed to radiant panel 1
Portion is fixed with nut 6, and common metal stud can be used as feed stud 5.
1 plate of radiant panel can select FR4 plate or select microwave plate, and 1 outline border shape of radiant panel can be circle
It is also possible to rectangular.
Four inclination coupling pieces 7 are successively separated by 90 degree and are distributed in 1 surrounding of radiant panel, by adjusting inclination coupling piece 7 and spoke
The distance of plate 1 is penetrated, antenna axial ratio characteristic can be improved, inclination coupling piece 7 can be made of printed circuit board or metal plate, be led to
Direct welding procedure is crossed, is fixed to above printed wiring bottom plate 9.
Four horizontal coupling pieces 8 are successively separated by 90 degree and are distributed in 1 surrounding of radiant panel, by the height for adjusting horizontal coupling piece 8
The frequency of adjustable Antenna Operation is spent, horizontal coupling piece 8 can be made of printed circuit board or metal plate, by directly welding
Technique is connect, is fixed to above printed wiring bottom plate 9.
9 upper surface of printed wiring bottom plate is metal copper clad layers, and the back side is the feeding network of antenna, processes work using wiring board
Skill is realized.
As shown in fig. 6, feeding back to equal function point 90 by four feed studs 5 after radiant panel 1 receives spatial electromagnetic wave
Electric bridge 13 and 14 is spent, wherein two paths of signals 5-1 and 5-2 synthesizes signal all the way by equal 90 degree electric bridges 13 of function point, and in addition two
By the 90 degree of synthesis of electric bridge 14 of another equal function point, signal, this road composite signal pass through one 90 degree to road signal 5-3 and 5-4 all the way
Enter 90 degree of electric bridges 11 of an equal function point after phase-shift network 12 with other signal all the way, is finally synthesized all the way at antennal interface 10
Right-handed circular polarization signal.
Presently preferred embodiments of the present invention is described above.It is to be appreciated that the invention is not limited to above-mentioned
Particular implementation, devices and structures not described in detail herein should be understood as gives reality with the common mode in this field
It applies；Anyone skilled in the art, without departing from the scope of the technical proposal of the invention, all using the disclosure above
Methods and technical content many possible changes and modifications are made to technical solution of the present invention, or be revised as equivalent variations etc.
Embodiment is imitated, this is not affected the essence of the present invention.Therefore, anything that does not depart from the technical scheme of the invention, foundation
Technical spirit of the invention any simple modifications, equivalents, and modifications made to the above embodiment, still fall within the present invention
In the range of technical solution protection.
Claims (5)
1. a kind of capacitive coupling broadband satellite navigation antenna, which is characterized in that including radiant panel, feed stud, nut, horizontal coupling
Piece is closed, coupling piece and printed wiring bottom plate are tilted；Radiant panel is double side printed wiring board, and front is circular metal copper clad layers, back
There are four round feed metal pieces in face, and are connected by metallization VIA with positive four round feed metal pieces, front circle
There are capacitive coupling gap between shape metal copper clad layers and four round feed metal pieces, radiation fin surrounding is uniformly distributed inclination coupling
Close piece and horizontal coupling piece.
2. a kind of capacitive coupling broadband satellite navigation antenna as described in claim 1, which is characterized in that the radiant panel plate
For FR4 plate or microwave plate, radiant panel outline border shape is round or rectangular.
3. a kind of capacitive coupling broadband satellite navigation antenna as claimed in claim 2, which is characterized in that four inclinations coupling
Conjunction piece is successively separated by 90 degree and is distributed in radiant panel surrounding, passes through the distance for adjusting inclination coupling piece and radiant panel.
4. a kind of capacitive coupling broadband satellite navigation antenna as claimed in claim 3, which is characterized in that four horizontal couplings
Conjunction piece is successively separated by 90 degree and is distributed in radiant panel surrounding, and the frequency of Antenna Operation is adjusted by the height of the horizontal coupling piece of adjusting
Rate, horizontal coupling piece are made of printed circuit board or metal plate.
5. a kind of capacitive coupling broadband satellite navigation antenna as claimed in claim 4, which is characterized in that the printed wiring bottom
Plate upper surface is metal copper clad layers, and the back side is the feeding network of antenna.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811615870.4A CN109713429A (en) | 2018-12-27 | 2018-12-27 | A kind of capacitive coupling broadband satellite navigation antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811615870.4A CN109713429A (en) | 2018-12-27 | 2018-12-27 | A kind of capacitive coupling broadband satellite navigation antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109713429A true CN109713429A (en) | 2019-05-03 |
Family
ID=66258792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811615870.4A Pending CN109713429A (en) | 2018-12-27 | 2018-12-27 | A kind of capacitive coupling broadband satellite navigation antenna |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110611158A (en) * | 2019-09-24 | 2019-12-24 | 中国电子科技集团公司第三十八研究所 | Phased array antenna correction network |
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| US7436363B1 (en) * | 2007-09-28 | 2008-10-14 | Aeroantenna Technology, Inc. | Stacked microstrip patches |
| CN104409842A (en) * | 2014-11-27 | 2015-03-11 | 广州中海达卫星导航技术股份有限公司 | Single-layer broadband GNSS (Global Navigation Satellite System) measurement antenna |
| CN204257814U (en) * | 2014-11-27 | 2015-04-08 | 广州中海达卫星导航技术股份有限公司 | Light-duty broadband GNSS measurement type antenna |
| CN205543211U (en) * | 2016-01-13 | 2016-08-31 | 深圳华天信通科技有限公司 | Multifrequency high precision measurement satellite navigation antenna device |
| CN206480766U (en) * | 2017-01-20 | 2017-09-08 | 江苏省东方世纪网络信息有限公司 | Antenna and radio communication device |
-
2018
- 2018-12-27 CN CN201811615870.4A patent/CN109713429A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7436363B1 (en) * | 2007-09-28 | 2008-10-14 | Aeroantenna Technology, Inc. | Stacked microstrip patches |
| CN104409842A (en) * | 2014-11-27 | 2015-03-11 | 广州中海达卫星导航技术股份有限公司 | Single-layer broadband GNSS (Global Navigation Satellite System) measurement antenna |
| CN204257814U (en) * | 2014-11-27 | 2015-04-08 | 广州中海达卫星导航技术股份有限公司 | Light-duty broadband GNSS measurement type antenna |
| CN205543211U (en) * | 2016-01-13 | 2016-08-31 | 深圳华天信通科技有限公司 | Multifrequency high precision measurement satellite navigation antenna device |
| CN206480766U (en) * | 2017-01-20 | 2017-09-08 | 江苏省东方世纪网络信息有限公司 | Antenna and radio communication device |
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| CN110611158A (en) * | 2019-09-24 | 2019-12-24 | 中国电子科技集团公司第三十八研究所 | Phased array antenna correction network |
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Application publication date: 20190503 |