CN106785320A - A kind of GNSS occultation positioning antenna of phase center stabilization - Google Patents
A kind of GNSS occultation positioning antenna of phase center stabilization Download PDFInfo
- Publication number
- CN106785320A CN106785320A CN201611174061.5A CN201611174061A CN106785320A CN 106785320 A CN106785320 A CN 106785320A CN 201611174061 A CN201611174061 A CN 201611174061A CN 106785320 A CN106785320 A CN 106785320A
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- CN
- China
- Prior art keywords
- radiation fin
- antenna
- layer radiation
- top layer
- fixing screws
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
- H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
Abstract
GNSS occultation the invention provides a kind of phase center stabilization positions antenna, metal fixing screws pass through bottom radiation fin, second layer radiation fin, the center of top layer radiation fin, medium fixing screws are each passed through bottom radiation fin, second layer radiation fin, the corner of top layer radiation fin, and bottom radiation fin, second layer radiation fin, top layer radiation fin are sequentially fixed at into antenna substrate top；Feeding network is close to celestial pole base lower surface, there is provided 0 °, 90 °, 180 ° and 270 ° phase shift and constant power distribution signal；Described feed pin runs through antenna substrate and bottom radiation fin, connection second layer radiation fin and feeding network, and feed pin not Contact antenna substrate and bottom radiation fin.Inventive antenna circular polarisation superior performance, firm in structure and process is simple, bandwidth, the broader wave cover having, gain higher and preferable Phase center stability, it is adaptable to Precision Position Location System.
Description
Technical field
The present invention relates to a kind of circular polarized antenna of detected with high accuracy.
Background technology
Since in recent years, the country begins one's study a kind of big based on the satellite system radio signals such as GPS, the Big Dipper detection earth
The method in compression ring border：Satellite radio signal receives atmospheric refraction influence when earth atmosphere is passed through, and propagation path occurs curved
Song, causes the signal phase that receiver user receives to produce delay, by measure these retardations can obtain temperature in air,
The information such as pressure, humidity, electron density.In order to improve LEO occultation inversion accuracy, it is proposed that one is based on global navigation satellite
The detection system of system (GNSS).Used as the critical component in GNSS LEO occultation systems, high-precision occultation positions antenna skill
Art has turned into current urgent problem.
Occultation positioning antenna is a kind of broad beam covering antenna, it is desirable to antenna have in angular region wide gain higher,
Good axle is than performance, and stable phase center.Using the helical antenna, micro- of resonant mode more than current occultation positioning antenna
Band antenna and normal air chamber type antenna.The helical antenna and microstrip antenna frequency structure of resonant mode are more compact, with higher
Radiation efficiency, is capable of achieving good angle wave cover wide, but bandwidth of operation is narrower, it is impossible to cover GPS, BD, GALILEO and
The frequency range of GLONASS；While less stable of its phase center in the range of broadband, broad beam.Normal air chamber
Formula antenna structure is also more compact, and bandwidth of operation is wider, and phase center has good stability in the range of broadband, broad beam
Can, antenna gain is higher, but its wave cover poor performance in angle wide, low elevation gain is generally relatively low.
The content of the invention
In order to overcome the deficiencies in the prior art, the present invention to provide a kind of two-band, low elevation gain high and high phase place center
The GNSS antenna of stability.
The technical solution adopted for the present invention to solve the technical problems is：Including bottom radiation fin, second layer radiation fin, top
Layer radiation fin, antenna substrate, feeding network, feed pin, metal fixing screws and medium fixing screws.
Described bottom radiation fin, second layer radiation fin, top layer radiation fin are sheet metal arranged in parallel, described metal
Fixing screws pass through bottom radiation fin, second layer radiation fin, the center of top layer radiation fin, and described medium fixing screws are worn respectively
Bottom radiation fin, second layer radiation fin, the corner of top layer radiation fin are crossed, by bottom radiation fin, second layer radiation fin, top layer radiation
Piece is sequentially fixed at antenna substrate top；Feeding network is close to celestial pole base lower surface, there is provided 0 °, 90 °, 180 ° and 270 ° phase
Move and constant power distribution signal；Described feed pin runs through antenna substrate and bottom radiation fin, connects second layer radiation fin
And feeding network, and feed pin not Contact antenna substrate and bottom radiation fin.
Described antenna substrate, filled by air between bottom radiation fin, second layer radiation fin and top layer radiation fin.
Described bottom radiation fin, second layer radiation fin and top layer radiation fin are identical rule symmetric figure, including just
Square, rhombus and circle.
The beneficial effects of the invention are as follows：
(1) it is air dielectric between radiation fin, and bottom radiation fin uses coupling feed way, improves input port
Impedance operator, can effectively improve the working band characteristic of antenna.Antenna can cover GPS, BD-2, GALILEO's and GLONASS
Frequency range.
(2) antenna top addition of a top layer radiation fin, and top layer radiation fin is a reflecting mechanism, excellent by precise control
Change its size and the spacing from lower floor's radiation fin, second layer radiation fin and bottom radiation fin radiation signal can be effectively improved
Low elevation gain, while improving Phase center stability of the antenna in the range of broad beam.
(3) by four-point feed point form circular polarisation.Compared with common single-point feedback and 2 points feed and to form circular polarisation,
Four-point feed symmetrical configuration, while Antenna Operation bandwidth is expanded, can effectively improve radiation of the antenna in angular region wide
Characteristic, improves gain level, axle ratio characteristic, Phase center stability of the antenna in angular region wide.
(4) in order to improve structural strength, except there are four medium screws the corner of antenna as support, at the center of antenna
Position, also one metallic screw is reinforced to antenna.
Brief description of the drawings
Fig. 1 is the package assembly tangent plane schematic diagram of circular polarized antenna in the prior art.
Fig. 2 is package assembly tangent plane schematic diagram of the invention.
Fig. 3 is top layer radiation fin front schematic view of the invention.
Fig. 4 is second layer radiation fin front schematic view of the invention.
Fig. 5 is bottom radiation fin front schematic view of the invention.
Fig. 6 is the front schematic view of several shapes of top layer radiation fin of the invention.
Fig. 7 is the front schematic view of several shapes of second layer radiation fin of the invention.
Fig. 8 is the front schematic view of several shapes of bottom radiation fin of the invention.
Fig. 9 is the simulated gain directional diagram of top layer radiating antenna in the prior art.
Figure 10 is the simulated gain directional diagram of second layer radiating antenna of the invention.
Figure 11 is that the emulation axle of top layer radiating antenna in the prior art compares directional diagram.
Figure 12 is that the emulation axle of second layer radiating antenna of the invention compares directional diagram.
Figure 13 is the simulated gain directional diagram of bottom radiating antenna in the prior art.
The simulated gain directional diagram of Figure 14 bottom radiating antennas of the invention.
Figure 15 is that the emulation axle of bottom radiating antenna in the prior art compares directional diagram.
Figure 16 is that the emulation axle of bottom radiating antenna of the invention compares directional diagram.
Specific embodiment
The present invention is further described with reference to the accompanying drawings and examples, and the present invention includes but are not limited to following implementations
Example.
A kind of GNSS occultation positioning antenna of phase center stabilization that the present invention is provided includes：Bottom radiation fin, the second layer
Radiation fin, top layer radiation fin, antenna substrate, feeding network, joint, feed pin, central metal fixing screws and dielectric support/
Fixing screws.
Described radiation fin is sheet metal, and bottom radiation fin is higher than antenna substrate, positioned at surface；Second layer radiation fin
Higher than bottom radiation fin, improve increased top layer radiation fin and be located at second layer radiation fin top.
Described feed pin runs through antenna substrate and bottom radiation fin, and connects with second layer radiation fin and feeding network
Connect.
Described central metal fixing screws pass through three layers of radiation fin, and three layers of radiation fin are attached on antenna substrate.
Described dielectric support/fixing screws are installed on aerial radiation piece corner, through three layers of radiation fin, and three layers of spoke
Piece is penetrated to be attached on antenna substrate.
Described feeding network be installed on antenna substrate lower section, for antenna provide 0 °, 90 °, 180 ° and 270 ° phase shift and
Constant power distributes signal, so as to form antenna circular polarisation.
As shown in Fig. 2 the present invention improve after circular polarized antenna embodiment include antenna substrate 1, bottom radiation fin 2,
Second layer radiation fin 3, top layer radiation fin 4, the feeding network 5 positioned at the back side of antenna substrate 1, joint 6, feed pin 7, medium branch
Support/fixing screws 8, central metal fixing screws 9.In figure, the three layers of support of radiation fin/mounting medium screw 8 are radiation fin 2,3
It is fixed on antenna substrate 1 with 4, as structural member as antenna mounting, reinforcement antenna strength；The metal of center of antenna is fixed
Screw 9 enables aerial radiation piece 2,3 and 4 center good earths, again on fixed radiation fin 2,3 and 4 to antenna substrate 1, enters
One step strengthens antenna structure；The feeding network 5 of antenna provides 0 °, 90 °, the 180 ° and 270 ° constant power distribution signal of phase shift；
The upper end of feed pin 7 of antenna is connected with second layer radiation fin 3；Lower end passes through from the hole of bottom radiation fin 2 and antenna substrate 1,
It is coupled to the feeding network 5 of antenna.Feed pin 7 is electrically connected to second layer radiation fin 3, directly presented, and to bottom radiation fin couple feed, is led to
Cross the input/output radiofrequency signal of joint 6.
As shown in figure 3, in the antenna described in Fig. 2 top layer radiation fin front schematic view.In figure, center is that metal fixes spiral shell
Nail 9 passes through centre bore 10, and by the centre-point earth of metal fixing screws 9, short circuit, corner is dielectric support/fixation to top layer radiation fin
Illustrate hole 11 in the position of screw 8.
As shown in figure 4, in the antenna described in Fig. 1 second layer radiation fin front schematic view.In figure, metal centered on center
The centre bore 10 that fixing screws 9 are passed through, second layer radiation fin passes through the centre-point earth of metal fixing screws 9, short circuit.Corner is medium
Illustrate hole 11 in the position of support/fixing screws 8.Four sides are that hole 12 is illustrated in the position of feed pin 7.Second layer radiation chip antenna emulation
Gain, axle are than directional diagram referring to Figure 10 and Figure 12.
As shown in figure 5, in the antenna described in Fig. 2 bottom radiation fin front schematic view.In figure, metal is consolidated centered on center
Determine the centre bore 10 that screw 9 is passed through, bottom radiation fin passes through the centre-point earth of metal fixing screws 9, short circuit.Corner is medium branch
Illustrate hole 11 in the position of support/fixing screws 8.Four sides are that hole 13 is illustrated in the position of feed pin 7, and feed pin 7 is passed through from hole 13, not
Connection.Gain, the axle of bottom radiation chip antenna emulation are than directional diagram referring to Figure 14 and Figure 16.
As shown in figure 9, described in Fig. 1 antenna top layer radiating antenna simulated gain directional diagram.Wherein transverse axis (X-axis) is represented
Antenna elevation angle angle, the longitudinal axis (Y-axis) represents gain.
As shown in Figure 10, it is the simulated gain directional diagram of antenna second layer radiating antenna described in Fig. 2.Wherein transverse axis (X-axis)
Antenna elevation angle angle is represented, the longitudinal axis (Y-axis) represents gain.
As shown in figure 11, it is that the emulation axle of antenna top layer radiating antenna described in Fig. 1 compares directional diagram.Wherein transverse axis (X-axis) table
Show antenna elevation angle angle, the longitudinal axis (Y-axis) represents axle ratio.
As shown in figure 12, it is that the emulation axle of antenna second layer radiating antenna described in Fig. 2 compares directional diagram.Wherein transverse axis (X-axis)
Antenna elevation angle angle is represented, the longitudinal axis (Y-axis) represents axle ratio.
As shown in figure 13, it is the simulated gain directional diagram of antenna bottom radiating antenna described in Fig. 1.Wherein transverse axis (X-axis) table
Show antenna elevation angle angle, the longitudinal axis (Y-axis) represents gain.
As shown in figure 14, it is the simulated gain directional diagram of antenna bottom radiating antenna described in Fig. 2.Wherein transverse axis (X-axis) table
Show antenna elevation angle angle, the longitudinal axis (Y-axis) represents gain.
As shown in figure 15, it is that the emulation axle of antenna bottom radiating antenna described in Fig. 1 compares directional diagram.Wherein transverse axis (X-axis) table
Show antenna elevation angle angle, the longitudinal axis (Y-axis) represents axle ratio.
As shown in figure 16, it is that the emulation axle of antenna bottom radiating antenna described in Fig. 2 compares directional diagram.Wherein transverse axis (X-axis) table
Show antenna elevation angle angle, the longitudinal axis (Y-axis) represents axle ratio.
As can be seen that increasing after the gain of circular polarized antenna and axle before and after comparison diagram 9 to Figure 16 is improved are than directional diagram
Plus after top layer radiation fin, the low elevation gain of second layer radiation fin and bottom radiation fin radiation signal is significantly improved, axle
Than performance also optimize to a certain extent.
In the present embodiment, filled by air between antenna substrate and bottom, the second layer, top layer radiation fin.
The antenna top layer, the second layer and bottom radiation fin profile are usually regular symmetric figure (such as Fig. 6, Fig. 7 and Fig. 8),
Based on square, rhombus and circle.Radiation characteristic and resonance characteristic difference of the circular polarized antenna of the present invention in two frequency ranges
Determined by feed pin position, radiation chip size and its height.
The preferred embodiments of the present invention are these are only, is not thereby limited the scope of the invention, in every present invention
The equivalent transformation of appearance, or by it is of the invention directly/be used in specific equipment or other related technical fields indirectly, be included in
In protection scope of the present invention.
Claims (3)
1. the GNSS occultation positioning antenna of a kind of phase center stabilization, including bottom radiation fin, second layer radiation fin, top layer radiation
Piece, antenna substrate, feeding network, feed pin, metal fixing screws and medium fixing screws, it is characterised in that：Described bottom
Layer radiation fin, second layer radiation fin, top layer radiation fin are sheet metal arranged in parallel, and described metal fixing screws pass through bottom
Radiation fin, second layer radiation fin, the center of top layer radiation fin, described medium fixing screws are each passed through bottom radiation fin,
Two layers of radiation fin, corner of top layer radiation fin, day is sequentially fixed at by bottom radiation fin, second layer radiation fin, top layer radiation fin
Line surface；Feeding network is close to celestial pole base lower surface, there is provided 0 °, 90 °, 180 ° and 270 ° phase shift and constant power point
With signal；Described feed pin runs through antenna substrate and bottom radiation fin, connects second layer radiation fin and feeding network, and feedback
Electric mortiser pin not Contact antenna substrate and bottom radiation fin.
2. the GNSS occultation of phase center stabilization according to claim 1 positions antenna, it is characterised in that：Described antenna
Filled by air between substrate, bottom radiation fin, second layer radiation fin and top layer radiation fin.
3. the GNSS occultation of phase center stabilization according to claim 1 positions antenna, it is characterised in that：Described bottom
Radiation fin, second layer radiation fin and top layer radiation fin are identical rule symmetric figure, including square, rhombus and circle.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2015109706645 | 2015-12-22 | ||
| CN201510970664 | 2015-12-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106785320A true CN106785320A (en) | 2017-05-31 |
Family
ID=58890181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611174061.5A Pending CN106785320A (en) | 2015-12-22 | 2016-12-19 | A kind of GNSS occultation positioning antenna of phase center stabilization |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106785320A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108011182A (en) * | 2017-11-01 | 2018-05-08 | 湖北三江航天险峰电子信息有限公司 | A kind of circular polarized antenna |
| CN113097697A (en) * | 2019-12-23 | 2021-07-09 | 上海华测导航技术股份有限公司 | High-precision satellite navigation and communication combined antenna based on new material |
| CN113937478A (en) * | 2021-04-16 | 2022-01-14 | 深圳市玛雅通讯设备有限公司 | Positioning antenna and design method thereof |
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| JP2000223934A (en) * | 1999-02-04 | 2000-08-11 | Toko Inc | Microstrip antenna |
| CN103280633A (en) * | 2013-05-30 | 2013-09-04 | 深圳市华信天线技术有限公司 | Satellite positioning antenna device |
| CN103311670A (en) * | 2013-05-30 | 2013-09-18 | 深圳市华信天线技术有限公司 | Satellite positioning antenna device |
| CN103996907A (en) * | 2013-02-20 | 2014-08-20 | 佳邦科技股份有限公司 | Antenna structure |
| CN204205058U (en) * | 2014-11-11 | 2015-03-11 | 中国电子科技集团公司第二十研究所 | The double-deck double frequency round polarized antenna of four feedbacks of center short circuit |
| CN204205042U (en) * | 2014-11-11 | 2015-03-11 | 中国电子科技集团公司第二十研究所 | The double-deck double frequency round polarized antenna of four feedbacks |
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2016
- 2016-12-19 CN CN201611174061.5A patent/CN106785320A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000223934A (en) * | 1999-02-04 | 2000-08-11 | Toko Inc | Microstrip antenna |
| CN103996907A (en) * | 2013-02-20 | 2014-08-20 | 佳邦科技股份有限公司 | Antenna structure |
| CN103280633A (en) * | 2013-05-30 | 2013-09-04 | 深圳市华信天线技术有限公司 | Satellite positioning antenna device |
| CN103311670A (en) * | 2013-05-30 | 2013-09-18 | 深圳市华信天线技术有限公司 | Satellite positioning antenna device |
| CN204205058U (en) * | 2014-11-11 | 2015-03-11 | 中国电子科技集团公司第二十研究所 | The double-deck double frequency round polarized antenna of four feedbacks of center short circuit |
| CN204205042U (en) * | 2014-11-11 | 2015-03-11 | 中国电子科技集团公司第二十研究所 | The double-deck double frequency round polarized antenna of four feedbacks |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108011182A (en) * | 2017-11-01 | 2018-05-08 | 湖北三江航天险峰电子信息有限公司 | A kind of circular polarized antenna |
| CN113097697A (en) * | 2019-12-23 | 2021-07-09 | 上海华测导航技术股份有限公司 | High-precision satellite navigation and communication combined antenna based on new material |
| EP3872929A4 (en) * | 2019-12-23 | 2021-09-01 | Shanghai Huace Navigation Technology Ltd. | New material-based high-precision satellite navigation and communication combined antenna |
| US11799203B2 (en) | 2019-12-23 | 2023-10-24 | Shanghai Huace Navigation Technology Ltd. | Modified-material-based high-precision combined antenna for satellite navigation and communications |
| CN113937478A (en) * | 2021-04-16 | 2022-01-14 | 深圳市玛雅通讯设备有限公司 | Positioning antenna and design method thereof |
| CN113937478B (en) * | 2021-04-16 | 2023-11-21 | 深圳市玛雅通讯设备有限公司 | Positioning antenna and design method thereof |
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