CN103280625B - GNSS high-acruracy survey antenna - Google Patents
GNSS high-acruracy survey antenna Download PDFInfo
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- CN103280625B CN103280625B CN201310150488.1A CN201310150488A CN103280625B CN 103280625 B CN103280625 B CN 103280625B CN 201310150488 A CN201310150488 A CN 201310150488A CN 103280625 B CN103280625 B CN 103280625B
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Abstract
The invention discloses a kind of GNSS high-acruracy survey antenna, comprising: reflection cavity and be distributed in the choke of reflection cavity periphery; Be provided with four centrosymmetric feed oscillators in reflection cavity, the napex of two feed oscillators relative in four feed oscillators is connected through plate; The below of reflection cavity is provided with microstrip-fed chamber, is provided with microstrip circuit in microstrip-fed chamber, and feed shakes to give and is electrically connected through the microstrip circuit of inner wire with the microstrip-fed chamber be positioned at below reflection cavity.The present invention is by being located at the microstrip-fed chamber be positioned at below reflection cavity by microstrip circuit, the feed oscillator being positioned at reflection cavity is electrically connected with the microstrip circuit being positioned at microstrip-fed chamber through inner wire, efficiently reduce electromagnetic interference, improve the purity of electric feed signal, and the present invention adopts centrosymmetric four feeds to shake molecular broadband radiation unit, fully cover multiple navigation satellite signals of 1.1 ~ 1.6GHz frequency range, widen the working frequency range of reception antenna.
Description
Technical field
The present invention relates to moving communicating field, especially, relate to a kind of GNSS high-acruracy survey antenna.
Background technology
Based on satellite navigation, there is full-time sky, round-the-clock, high accuracy, provide navigation in real time continuously, locate and the feature of time service, make satellite navigation be widely used in the multiple fields such as navigation, mapping, monitoring, time service, communication, and play a part more and more important in economic development, scientific research, damage control and military field.
With the satellite navigation that GPS of America (GlobalPositioningSystem) is representative, along with coming into operation of the triones navigation system of China and the Galileo in Europe and Muscovite GLONASS system, oneself has marched toward GNSS (GlobalNavigationSatelliteSystem) epoch, defines GPS, Galileo, GLONASS, BD multisystem and the situation of depositing.According to GNSS positioning principle and satellite-signal feature thereof, user locates rapidly, continuously, accurately for realizing receiver, require that dual frequency reception antenna has central stabilizer, response evenly, phase center and antenna geometrical center coincide, low elevation signals receiving ability is good, cross polarization rejection ability strong, the features such as anti-multipath effect is good.And the impedance bandwidth of existing microstrip antenna and axial ratio bandwidth narrow, gain is little, often can only cover a kind of system or two kinds of systems of GPS, Galileo, GLONASS or BD navigation system.And the reception antenna of multisystem/pattern cooperation significantly can improve the fail safe of satellite navigation, reliability and availability (user of different regions can select corresponding pattern), be conducive to the market forming the GNSS multimode multi-frequency compatible receiver system application that multisystem coordinates, improve the cost performance of multimode multi-frequency compatible receiver system.Therefore multimodal collaborative work will become a kind of trend of Future Satellite navigation system.
Summary of the invention
The object of the invention is to provide a kind of GNSS high-acruracy survey antenna, large technical problem that narrow, the low elevation signals receiving ability of existing reception antenna working band is weak to solve, multi-path jamming impact is large and electric feed signal decays.
For achieving the above object, the technical solution used in the present invention is as follows:
A kind of GNSS high-acruracy survey antenna, comprising: reflection cavity and be distributed in the choke of reflection cavity periphery;
Be provided with four centrosymmetric feed oscillators in reflection cavity, the top of two feed oscillators relative in four feed oscillators is connected through plate;
The below of reflection cavity is provided with microstrip-fed chamber, is provided with microstrip circuit in microstrip-fed chamber, and feed oscillator is electrically connected through the microstrip circuit of inner wire with the microstrip-fed chamber be positioned at below reflection cavity.
Further, be connected with chokes ring through support column in reflection cavity, chokes ring is positioned at the top of feed oscillator.
Further, plate is U-shaped and two plates are staggeredly arranged in height in the vertical direction, orthogonal in the horizontal direction.
Further, the below in microstrip-fed chamber is provided with low noise amplifier, and the microstrip circuit being positioned at microstrip-fed chamber is electrically connected with low noise amplifier through the first coaxial cable.
Further, the below of reflection cavity and choke is provided with mount pad, and mount pad and choke are tightly connected, and microstrip-fed chamber and low noise amplifier are all positioned at the electromagnetic shielding chamber that mount pad and choke are formed.
Further, the output of low noise amplifier is connected with out splice going splice through the second coaxial cable.
Further, the contact position of mount pad and choke is provided with seal groove, is placed with sealing ring in seal groove.
Further, the top of reflection cavity and choke is provided with radome.
Further, choke comprises the sidewall of coaxial multilayer ring-type, forms the choke groove of ring-type between multilayer sidewall.
Further, the first-class spacing of sidewall has arc notch.
The present invention has following beneficial effect:
1, GNSS high-acruracy survey antenna of the present invention is by being located at the microstrip-fed chamber be positioned at below reflection cavity by microstrip circuit, the feed oscillator being positioned at reflection cavity is electrically connected with the microstrip circuit being positioned at microstrip-fed chamber through inner wire, compared with traditional structure microstrip circuit is placed in feed oscillator in reflection cavity, efficiently reduce electromagnetic interference, improve the purity of electric feed signal, and improve low elevation signals receiving ability, and the present invention adopts centrosymmetric four feeds to shake molecular broadband radiation unit, fully cover multiple navigation satellite signals of 1.1 ~ 1.6GHz frequency range, widen the working frequency range of reception antenna.
2, the present invention adopts symmetric feeds technology, enhances the purity of antenna transmission mode, reduces and suppresses to produce unnecessary higher mode, improving the phase place radiation characteristic of antenna, improve the Phase center stability of antenna.
3, low noise amplifier is arranged in the mount pad of antenna by GNSS high-acruracy survey antenna of the present invention, make overall antennas more compact structure, shorten traditional circuit, reduce the loss of signal in transmitting procedure, and the electromagnetic shielding chamber that the bottom of invention mount pad and choke is formed, effectively reduce the interference of noise to signal.
4, the present invention adopts choke and chokes ring, effectively inhibits the interference of multipath effect, while guarantee low elevation gain, improves rolloff-factor and the front and back ratio of antenna, effectively improves the ability of anti-multipath of antenna.
Except object described above, feature and advantage, the present invention also has other object, feature and advantage.Below with reference to figure, the present invention is further detailed explanation.
Accompanying drawing explanation
The accompanying drawing forming a application's part is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the structural representation of preferred embodiment of the present invention GNSS high-acruracy survey antenna.
Description of reference numerals:
1, feed oscillator; 2, chokes ring; 3, plate; 4, inner wire; 5, medium; 6, support column;
7, radome; 10, reflection cavity; 20, choke; 21, choke groove; 30, microstrip-fed chamber;
31, microstrip circuit; 40, electromagnetic shielding chamber; 41, the first coaxial cable; 42, the second coaxial cable;
43, out splice going splice; 44, low noise amplifier; 45, mount pad; 50, seal groove; 51, sealing ring.
Embodiment
Below in conjunction with accompanying drawing, embodiments of the invention are described in detail, but the multitude of different ways that the present invention can be defined by the claims and cover is implemented.
With reference to Fig. 1, the preferred embodiments of the present invention provide a kind of GNSS high-acruracy survey antenna, comprising: reflection cavity 10 and be distributed in the choke 20 of reflection cavity 10 periphery; The top being provided with two feed oscillators 1 relative in four centrosymmetric feed oscillators, 1, four feed oscillators 1 in reflection cavity 10 is connected through plate 3; Two plates about 3 are staggered and are not contacted assembling; The below of reflection cavity 10 is provided with microstrip-fed chamber 30, is provided with microstrip circuit 31 in microstrip-fed chamber 30, and feed oscillator 1 is electrically connected through the microstrip circuit 31 of inner wire 4 with the microstrip-fed chamber 30 be positioned at below reflection cavity 10.Like this, feed oscillator 1 receives the signal that electromagnetic wave passes over and is passed to the microstrip circuit 31 being positioned at microstrip-fed chamber 30 through inner wire 4.GNSS high-acruracy survey antenna of the present invention is by being located at the microstrip-fed chamber 30 be positioned at below reflection cavity 10 by microstrip circuit 31, the feed oscillator 1 being positioned at reflection cavity 10 is electrically connected with the microstrip circuit 31 being positioned at microstrip-fed chamber 30 through inner wire 4.Preferably, inner wire 4 is arranged on the center of medium 5, and medium 5 is arranged on the center of feed oscillator 1.With traditional microstrip circuit 31 is placed in the structure in reflection cavity 10 with feed oscillator 1 compared with, efficiently reduce electromagnetic interference, improve the purity of electric feed signal, and improve low elevation signals receiving ability, and the broadband radiation unit that the present invention adopts centrosymmetric four feed oscillators 1 to form, fully cover multiple navigation satellite signals of 1.1 ~ 1.6GHz frequency range, widen the working frequency range of reception antenna.
Preferably, be connected with chokes ring 2 through support column 6 in reflection cavity 10, chokes ring 2 is positioned at the top of feed oscillator 1.The choke 20 being positioned at reflection cavity 10 periphery comprises the sidewall of coaxial multilayer ring-type, forms the choke groove 21 of ring-type between multilayer sidewall.The quantity of choke groove 21 can be coaxial two, three, four even more.Like this, effectively inhibit the interference of reception antenna multipath effect, while guarantee low elevation gain, improve rolloff-factor and the front and back ratio of antenna, effectively improve the ability of anti-multipath of antenna.Preferably, the first-class spacing of sidewall between adjacent choke groove 21 has arc notch, the bottom of adjacent choke groove 21 is communicated, can suppress the interference of reception antenna multipath effect better.
Preferably, plate 3 is U-shaped and two plates 3 are staggeredly arranged in height in the vertical direction, orthogonal in the horizontal direction.
In a preferred embodiment, the below in microstrip-fed chamber 30 is provided with low noise amplifier 44, and the microstrip circuit 31 being positioned at microstrip-fed chamber 30 is electrically connected with low noise amplifier 44 through the first coaxial cable 41.The below of reflection cavity 10 and choke 20 is provided with mount pad 45, and mount pad 45 and choke 20 are tightly connected, and microstrip-fed chamber 30 and low noise amplifier 44 are all positioned at the electromagnetic shielding chamber 40 that mount pad 45 is formed with choke 20.Low noise amplifier 44 is arranged in the mount pad 45 of antenna by the present invention, make overall antennas more compact structure, shorten traditional circuit, reduce the loss of signal in transmitting procedure, and the electromagnetic shielding chamber 40 that invention mount pad 45 is formed with the bottom of choke 20, effectively reduce the interference of noise to signal.
Preferably, the output of low noise amplifier 44 is connected with out splice going splice 43 through the second coaxial cable 42, through feed oscillator 1 receive aerial signal after microstrip circuit 31 carries out filtered noise process, carry out gain amplification disposal through low noise amplifier 44 again, pass to subsequent conditioning circuit through out splice going splice 43 and carry out the process such as AD conversion and Digital Signal Analysis.
Preferably, mount pad 45 is provided with seal groove 50 with the contact position of choke 20, is placed with sealing ring 51 in seal groove 50.Make mount pad 45 define the electromagnetic shielding chamber 40 of sealing with the bottom of choke 20, effectively reduce the interference of noise to signal.
Preferably, the top of reflection cavity 10 and choke 20 is provided with radome 7, and radome 7 is sealed by the gluing upper chamber with reflection cavity 10 and choke 20, and the shape figuration of radome 7 is in antenna shapes.
The foregoing is only the preferred embodiments of the present invention and oneself, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. a GNSS high-acruracy survey antenna, is characterized in that, comprising: reflection cavity (10) and be distributed in the peripheral choke (20) of described reflection cavity (10);
Be provided with four centrosymmetric feed oscillators (1) in described reflection cavity (10), the top of two described feed oscillators (1) relative in four described feed oscillators (1) is connected through plate (3); Two described plates (3) are staggered up and down and are not contacted assembling;
The below of described reflection cavity (10) is provided with microstrip-fed chamber (30), be provided with microstrip circuit (31) in described microstrip-fed chamber (30), described feed oscillator (1) is electrically connected through the described microstrip circuit (31) of inner wire (4) with the described microstrip-fed chamber (30) being positioned at described reflection cavity (10) below;
Be connected with chokes ring (2) through support column (6) in described reflection cavity (10), described chokes ring (2) is positioned at the top of described feed oscillator (1).
2. GNSS high-acruracy survey antenna according to claim 1, is characterized in that,
Described plate (3) is staggeredly arranged in height in the vertical direction for U-shaped and two described plates (3), orthogonal in the horizontal direction.
3. GNSS high-acruracy survey antenna according to claim 1, is characterized in that,
The below of described microstrip-fed chamber (30) is provided with low noise amplifier (44), and the described microstrip circuit (31) being positioned at described microstrip-fed chamber (30) is electrically connected with described low noise amplifier (44) through the first coaxial cable (41).
4. GNSS high-acruracy survey antenna according to claim 3, is characterized in that,
The below of described reflection cavity (10) and described choke (20) is provided with mount pad (45), described mount pad (45) and described choke (20) are tightly connected, and described microstrip-fed chamber (30) and described low noise amplifier (44) are all positioned at the electromagnetic shielding chamber (40) that described mount pad (45) is formed with described choke (20).
5. GNSS high-acruracy survey antenna according to claim 4, is characterized in that,
The output of described low noise amplifier (44) is connected with out splice going splice (43) through the second coaxial cable (42).
6. GNSS high-acruracy survey antenna according to claim 5, is characterized in that,
Described mount pad (45) is provided with seal groove (50) with the contact position of described choke (20), is placed with sealing ring (51) in described seal groove (50).
7. the GNSS high-acruracy survey antenna according to any one of claim 1 to 6, is characterized in that,
The top of described reflection cavity (10) and described choke (20) is provided with radome (7).
8. GNSS high-acruracy survey antenna according to claim 7, is characterized in that,
Described choke (20) comprises the sidewall of coaxial multilayer ring-type, forms the choke groove (21) of ring-type described in multilayer between sidewall.
9. GNSS high-acruracy survey antenna according to claim 8, is characterized in that,
The first-class spacing of described sidewall between adjacent described choke groove (21) has arc notch, and the bottom of adjacent described choke groove (21) is communicated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310150488.1A CN103280625B (en) | 2013-04-26 | 2013-04-26 | GNSS high-acruracy survey antenna |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310150488.1A CN103280625B (en) | 2013-04-26 | 2013-04-26 | GNSS high-acruracy survey antenna |
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| CN103280625A CN103280625A (en) | 2013-09-04 |
| CN103280625B true CN103280625B (en) | 2016-04-06 |
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| CN201310150488.1A Active CN103280625B (en) | 2013-04-26 | 2013-04-26 | GNSS high-acruracy survey antenna |
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Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104836026A (en) * | 2015-05-25 | 2015-08-12 | 深圳市华颖泰科电子技术有限公司 | Low-multipath measuring type antenna |
| CN105896104A (en) * | 2016-04-11 | 2016-08-24 | 中国人民解放军国防科学技术大学 | LS dual-band high-precision antenna for Beidou satellite navigation system ground monitoring station |
| CN106229671B (en) * | 2016-08-30 | 2021-08-10 | 浙江金乙昌科技股份有限公司 | Production method of metallized foam light choke antenna and antenna obtained by production method |
| CN106532257A (en) * | 2016-10-27 | 2017-03-22 | 西安合众思壮导航技术有限公司 | Antenna and communication system |
| CN106785366B (en) * | 2016-12-20 | 2019-05-07 | 中国电子科技集团公司第五十四研究所 | A kind of full range point measurement type antenna for satellite common vision receiver |
| CN107946757A (en) * | 2017-11-14 | 2018-04-20 | 西安天通电子科技有限公司 | Broadband high stability phase center anti-multipath antenna |
| CN109390669B (en) * | 2018-09-28 | 2020-09-25 | 湖北三江航天险峰电子信息有限公司 | Double-frequency antenna |
| CN109462004A (en) * | 2018-10-12 | 2019-03-12 | 江苏三和欣创通信科技有限公司 | A kind of external high-gain full frequency band measurement antenna |
| CN113131175B (en) * | 2019-12-31 | 2022-10-04 | 中国科学院国家空间科学中心 | Multi-band circularly polarized GNSS positioning antenna |
| CN114243286B (en) * | 2021-12-03 | 2023-07-07 | 中国电子科技集团公司第二十九研究所 | Anti-vibration and anti-impact microstrip feed antenna structure |
| CN114050410A (en) * | 2021-12-30 | 2022-02-15 | 陕西海积信息科技有限公司 | Circularly polarized antenna and reference station |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6040805A (en) * | 1998-05-08 | 2000-03-21 | Antcom Corp. | Low profile ceramic choke |
| CN202585719U (en) * | 2011-05-18 | 2012-12-05 | 陕西海通天线有限责任公司 | Four-feed four-arm plane slit spiral antenna |
| CN102931488A (en) * | 2012-11-16 | 2013-02-13 | 上海宇航系统工程研究所 | Satellite borne X-band broad beam antenna |
| CN102938496A (en) * | 2012-11-20 | 2013-02-20 | 北京遥测技术研究所 | Wide-band measuring antenna |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101436715A (en) * | 2008-12-05 | 2009-05-20 | 邢红兵 | Dual polarization back cavity type radiating antenna |
-
2013
- 2013-04-26 CN CN201310150488.1A patent/CN103280625B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6040805A (en) * | 1998-05-08 | 2000-03-21 | Antcom Corp. | Low profile ceramic choke |
| CN202585719U (en) * | 2011-05-18 | 2012-12-05 | 陕西海通天线有限责任公司 | Four-feed four-arm plane slit spiral antenna |
| CN102931488A (en) * | 2012-11-16 | 2013-02-13 | 上海宇航系统工程研究所 | Satellite borne X-band broad beam antenna |
| CN102938496A (en) * | 2012-11-20 | 2013-02-20 | 北京遥测技术研究所 | Wide-band measuring antenna |
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Address after: No.6 Xingkang South Road, Yuelu District, Changsha City, Hunan Province Patentee after: HUNAN SPACEFLIGHT HUANYU COMMUNICATION TECHNOLOGY Co.,Ltd. Address before: 410205 No. 229 west slope road, Changsha, Hunan, Tongzi Patentee before: HUNAN SPACEFLIGHT HUANYU COMMUNICATION TECHNOLOGY Co.,Ltd. |