CN104393425B - Four arm spiral broad-band antennas of satellite navigation multisystem multifrequency point - Google Patents
Four arm spiral broad-band antennas of satellite navigation multisystem multifrequency point Download PDFInfo
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- CN104393425B CN104393425B CN201410680511.2A CN201410680511A CN104393425B CN 104393425 B CN104393425 B CN 104393425B CN 201410680511 A CN201410680511 A CN 201410680511A CN 104393425 B CN104393425 B CN 104393425B
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Abstract
The invention discloses a kind of four arm spiral broad-band antennas of satellite navigation multisystem multifrequency point, are made up of the four arm spiral laminated antennas, feeding network and the low noise amplifier circuit that cascade.Four arm spiral laminated antennas include the upper strata four-arm spiral antenna and lower floor's four-arm spiral antenna for the satellite-signal for receiving different frequency range respectively that stacking is placed.It realizes GPS L1 and L2C frequency ranges, B1 the and B2 frequency ranges of the Big Dipper, GALILEO E1 and E5 frequency band signals and received, and antenna gain is uniform and has high phase place center, is advantageously implemented the multisystem needed for aircraft precision approach, multifrequency point, integrity and handles.
Description
Technical field
The present invention relates to a kind of four arm spiral broad-band antennas of satellite navigation multisystem multifrequency point, especially one kind is applied to
Four arm spiral broad-band antennas of the satellite navigation multisystem multifrequency point of precision approach reference receiver, belonging to satellite navigation aviation should
Use technical field.
Background technology
Satellite navigation turns into a kind of important technology approach of aviation aircraft positioning, can be applied to Route reform and precision is entered
Closely.Precision and integrity to meet the aircraft precision stage require that, it is necessary to introduce ground strengthening system it is connect by more references
Receipts machine and integrity processing information facility composition.
To further enhance the availability of satellite navigation system, continuity and integrity, the enhancing system of multisystem multifrequency point
System is development trend.Reference receiver therein needs multiple frequency signals of the multiple satellite navigation systems of reception processing.
Reference receiver is in order to monitor satellite navigation signals Strength Changes, it is desirable to which antenna gain is uniform, and common satellite is led
Space flight line does not possess the feature.
Lopez, A.R etc. are in GPS landing system reference antenna, IEEE, Volume:52,
ISSE:1,2010,Page:1 road signal is formed using 21 array elements in 104-113, the antenna radiation pattern gain of composition is uniform, but
GPS L1, L2 and L5 frequency is only received, and its antenna is in " bar " shape, plus Module of aerial, overall dimensions have certain high
Degree, need during installation to consider the limit for height requirement on airport.
Current technology scheme is primarily directed to GPS system, not comprising other satellite navigation systems.
Present invention foundation four-arm spiral antenna feature, devise the width of the precision approach reference receiver of multisystem multifrequency point
Band active antenna, the antenna pattern of uniform gain is formed by selecting appropriate physical size, to meet that precision approach is joined
Receiver high-performance treatments demand is examined, and antenna size is small.
The content of the invention
The technical problem to be solved in the present invention is to provide four arm spiral broad-band antennas of satellite navigation multisystem multifrequency point, increase
Benefit has uniform properties.
In order to solve the above technical problems, the technical solution used in the present invention is：
Four arm spiral broad-band antennas of satellite navigation multisystem multifrequency point, by four arm spiral laminated antennas, the feed cascaded
Network and low noise amplifier circuit composition；The four arms spiral laminated antenna include stacking place upper strata four-arm spiral antenna and
Lower floor's four-arm spiral antenna；The upper strata four-arm spiral antenna and lower floor's four-arm spiral antenna receive the satellite of different frequency range respectively
Signal.
The upper strata four-arm spiral antenna and lower floor's four-arm spiral antenna are by the consistent spiral conducting line of four root long degree, between waiting
Formed away from axis coiling is enclosed.The upper strata four-arm spiral antenna receives the satellite-signal of 1.5G frequency ranges, the arm spiral of lower floor four
Antenna receives the satellite-signal of 1.2G frequency ranges.
The lead angle of the upper strata four-arm spiral antenna is 45 °, antenna diameter 25mm；The arm spiral day of lower floor four
Its lead angle of line is 65 °, and the width of spiral arm is 2mm, antenna diameter 35mm.
The feeding network is electric bridge feeding network.
The electric bridge feeding network includes electric bridge chip N1-N6；Described electric bridge chip N1, N3 3 pin and 4 pin connect respectively
The feed port of layer each spiral conducting line of four-arm spiral antenna；Described electric bridge chip N5, N7 3 pin and 4 pin connect the arm of lower floor four respectively
The feed port of each spiral conducting line of helical antenna；3 pin and 4 pin of the electric bridge chip N2 meet electric bridge the chip N1 and N3 respectively
1 pin, first output end of its 1 pin as the electric bridge feeding network；3 pin and 4 pin of the electric bridge chip N6 meet institute respectively
Electric bridge chip N5 and N7 1 pin is stated, second output end of its 1 pin as the electric bridge feeding network.
The low noise amplifier circuit is by low-noise amplifier A1-A3, bandpass filter Z1-Z2, combiner N4, resistance
R1-R6, electric capacity C1-C4, inductance L1 compositions；The input of the low-noise amplifier A1 and A2 connects the electric bridge transmission network respectively
The first output end and the second output end of network, its output end connect 1 pin of the bandpass filter Z1 and Z2 respectively；The resistance
R1-R3 is end to end, and the node between resistance R1 and R2 connects 2 pin of the bandpass filter Z1, and the node between resistance R1 and R3 connects
Combiner N4 3 pin, the node ground connection between resistance R2 and R3；The resistance R4-R6 is end to end, the node between resistance R4 and R5
2 pin of the bandpass filter Z2 are connect, the node between resistance R4 and R6 connects combiner N4 4 pin, the node between resistance R5 and R6
Ground connection；The 1 foot meridian capacitor C3 of the low-noise amplifier A3 connects combiner N4 6 pin, and its 6 pin connects+3.3V power supplys through inductance L1,
Its 4 pin meets electric capacity C4；Output end of the electric capacity C4 other end as the low noise amplifier circuit.
It is using beneficial effect caused by above-mentioned technical proposal：
1st, the present invention uses the Wide-Band Design, realizes GPS L1 and L2C frequency ranges, B1 the and B2 frequency ranges of the Big Dipper, GALILEO
E1 and E5 frequency band signals array received, there is broadband feature, meet the multimode multi-frequency point demand of reference receiver；Often
Road signal synthesizes the output of 1 tunnel, is easy to connection to use.
2nd, antenna gain of the invention has uniform properties, be advantageously implemented multisystem needed for aircraft precision approach,
Multifrequency point, integrity processing.Antenna has high stability phase center.
3rd, inventive antenna has preferable hemispherical radiation properties, is easy to form higher gain at low elevation angles.Meet satellite
Aviation of navigating strengthens in application to the integrity monitoring demand of low elevation angle satellite.
4th, two frequency band signals of the invention amplify respectively filters again, ensure that not by out-of-band interference effect of signals, and
With good channels selectivity.
5th, the present invention advantageously reduces equipment volume and power consumption, is easy to high-acruracy survey.
Brief description of the drawings：
Fig. 1 is the theory diagram of four arm spiral laminated bays of the invention；
Fig. 2 is the structure chart of four arm spiral laminated bays of the invention；
Fig. 3 is the circuit theory diagrams of supply network road of the present invention and low-noise amplifier.
1：Upper strata four-arm spiral antenna, 2：Copper bar, 3：Lower floor's four-arm spiral antenna, 4：Base
Embodiment
As shown in figure 1, four arm spiral broad-band antennas of the satellite navigation multisystem multifrequency point are by the four arm spirals that cascade
Laminated antenna, feeding network and low noise amplifier circuit composition.The four arms spiral laminated antenna includes the upper strata that stacking is placed
Four-arm spiral antenna and lower floor's four-arm spiral antenna；The upper strata four-arm spiral antenna and lower floor's four-arm spiral antenna receive respectively
The satellite-signal of different frequency range.
As shown in Fig. 2 the upper strata four-arm spiral antenna and lower floor's four-arm spiral antenna are by the consistent spiral shell of four root long degree
Wire is revolved, axis coiling is equidistantly enclosed and forms.The upper strata four-arm spiral antenna and lower floor's four-arm spiral antenna are by four root longs
Consistent spiral conducting line is spent, axis coiling is equidistantly enclosed and forms.The upper strata four-arm spiral antenna receives the satellite of 1.5G frequency ranges
Signal, lower floor's four-arm spiral antenna receive the satellite-signal of 1.2G frequency ranges.
To ensure the broad beam of precision approach system reference antenna, gain uniform properties, by the antenna with side radiation direction characteristic of antenna
Make key design.Wavelength corresponding to helical antenna resonant frequency is to be determined by antenna diameter and lead angle：
λ=π d (1+cos α)/sin α
According to this design formula, design is optimized to antenna, optimization Simulation result is：
Upper strata four-arm spiral antenna receives the satellite-signal of 1.5G frequency ranges, and its lead angle is 45 °, a diameter of 25mm；Under
Layer four-arm spiral antenna receives the satellite-signal of 1.2G frequency ranges, and its lead angle is 65 °, and the width of spiral arm is 2mm, a diameter of
35mm。
The feeding network is electric bridge feeding network.
As shown in figure 3, the electric bridge feeding network includes electric bridge chip N1-N6；Described electric bridge chip N1, N3 3 pin and 4
Pin connects the feed port of each spiral conducting line of layer four-arm spiral antenna respectively；Described electric bridge chip N5, N7 3 pin and 4 pin difference
Connect the feed port of each spiral conducting line of lower floor's four-arm spiral antenna；3 pin and 4 pin of the electric bridge chip N2 connect the electric bridge respectively
Chip N1 and N3 1 pin, first output end of its 1 pin as the electric bridge feeding network；3 pin and 4 of the electric bridge chip N6
Pin connects 1 pin of electric bridge the chip N5 and N7, second output end of its 1 pin as the electric bridge feeding network respectively.
As shown in figure 3, the low noise amplifier circuit is by low-noise amplifier A1-A3, bandpass filter Z1-Z2, combining
Device N4, resistance R1-R6, electric capacity C1-C4, inductance L1 compositions；The input of the low-noise amplifier A1 and A2 connects described respectively
The first output end and the second output end of electric bridge feeding network, its output end connect 1 pin of the bandpass filter Z1 and Z2 respectively；
The resistance R1-R3 is end to end, and the node between resistance R1 and R2 connects 2 pin of the bandpass filter Z1, between resistance R1 and R3
Node connect combiner N4 3 pin, the node ground connection between resistance R2 and R3；The resistance R4-R6 is end to end, resistance R4 and R5
Between node connect 2 pin of the bandpass filter Z2, the node between resistance R4 and R6 meets combiner N4 4 pin, resistance R5 and R6
Between node ground connection；The 1 foot meridian capacitor C3 of the low-noise amplifier A3 connects combiner N4 6 pin, and its 6 pin connects through inductance L1+
3.3V power supplys, its 4 pin meet electric capacity C4；Output end of the electric capacity C4 other end as the low noise amplifier circuit.
Set according to GPS L1 and L2C frequency ranges, B1 the and B2 frequency ranges of the Big Dipper, the GALILEO frequency of E1 and E5 frequency band signals
Put, the two frequency bins of each system, be belonging respectively to two frequency ranges：L1, B1, E1 signal belong to 1.5GHz frequency ranges, L2C, B2, E5 letter
Number belong to 1.2GHz frequency ranges.
Four arm spiral laminated antennas use carries out lamination placement form, upper strata helical antenna work by two four-arm spiral antennas
Make to be operated in 1.2GHz frequency ranges in 1.5GHz frequency ranges, lower floor's helical antenna.Four spiral arm current amplitudes of upper strata helical antenna
It is equal, fed using electric bridge, the phase difference between 4 ports be followed successively by 0 °, 90 °, 180 °, 270 ° of modes are fed.Lower floor's spiral shell
Revolve antenna four spiral arm current amplitudes it is equal, fed using electric bridge, the phase difference between 4 ports be followed successively by 0 °, 90 °,
180 °, 270 ° of modes are fed.
Upper strata helical antenna uses flexible PCB structure, is bent, and be printed as with antenna radiating element in one.Under
Helical layer antenna bottom is designed using plane PCB construction.
The feeder cable of upper strata helical antenna is 69mm from height, is passed through inside a diameter of 10mm copper pipe, upper helical layer
Antenna and lower floor helical antenna distance 51mm.
Supply network road uses the XC1400P-03S of Anaren companies, and its imbalance of amplitude and phase degree is 0.3dB/4 °, is had good
Width balance each other characteristic, and ensure that antenna excellent axle ratio and Phase center stability.
Low-noise amplifier prime uses the ultra-low noise device WHM14-3020LE of WANTCOM companies, bandpass filter
CMF44C1575C32B and NBF4565C1166C98A respectively filters the satellite navigation signals of 1.5GHz frequency ranges and 1.2GHz frequency ranges
Go out.
Resistance R1, R2, R3 and R4, R5, R6 form two inter-stage matching networks, ensure bandpass filter port have compared with
Small voltage standing wave ratio, so that the good amplitude versus frequency characte of bandpass filter is not influenceed by rear end.
Using MINI-CIRCUITS SBTC-2-25 by two frequency band signals combinings, low noise amplification is carried out afterwards, it is whole
The noise coefficient that individual amplitude limit field is put is less than 0.8dB, gain 40dB.
Two frequency band signals amplify the design filtered again and ensure that not by out-of-band interference effect of signals respectively, and with good
Good channel selectivity.
Claims (3)
- A kind of 1. four arm spiral broad-band antennas of satellite navigation multisystem multifrequency point, it is characterised in that：By the four arm spirals cascaded Laminated antenna, feeding network and low noise amplifier circuit composition；The four arms spiral laminated antenna includes the upper strata that stacking is placed Four-arm spiral antenna and lower floor's four-arm spiral antenna；The upper strata four-arm spiral antenna and lower floor's four-arm spiral antenna receive respectively The satellite-signal of different frequency range；Wherein, the feeding network is electric bridge feeding network, and the electric bridge feeding network includes electric bridge chip N1-N3, N5-N7； Described electric bridge chip N1, N3 3 pin and 4 pin connect the feed port of each spiral conducting line of layer four-arm spiral antenna respectively；The electricity Bridge chip N5, N7 3 pin and 4 pin connect the feed port of each spiral conducting line of lower floor's four-arm spiral antenna respectively；The electric bridge chip N2 3 pin and 4 pin connect 1 pin of electric bridge the chip N1 and N3 respectively, and electric bridge chip N2 1 pin is as the electric bridge feeding network The first output end；3 pin and 4 pin of the electric bridge chip N6 meet 1 pin of electric bridge the chip N5 and N7, electric bridge chip N6 respectively Second output end of 1 pin as the electric bridge feeding network；The low noise amplifier circuit by low-noise amplifier A1-A3, bandpass filter Z1-Z2, combiner N4, resistance R1-R6, Electric capacity C1-C4, inductance L1 are formed；The input of the low-noise amplifier A1 and A2 connects the of the electric bridge feeding network respectively One output end and the second output end, low-noise amplifier A1 and A2 output end connect the 1 of the bandpass filter Z1 and Z2 respectively Pin；The resistance R1-R3 is end to end, and the node between resistance R1 and R2 meets 2 pin of the bandpass filter Z1, resistance R1 and R3 Between node connect combiner N4 3 pin, the node ground connection between resistance R2 and R3；The resistance R4-R6 is end to end, resistance R4 and Node between R5 connects 2 pin of the bandpass filter Z2, and the node between resistance R4 and R6 connects combiner N4 4 pin, resistance R5 and Node ground connection between R6；The 1 foot meridian capacitor C3 of the low-noise amplifier A3 meets combiner N4 6 pin, low-noise amplifier A3 6 pin connect+3.3V power supplys through inductance L1, low-noise amplifier A3 4 pin meet electric capacity C4；The electric capacity C4 other end is as described low The output end of noise amplifier circuit.
- 2. a kind of four arm spiral broad-band antennas of satellite navigation multisystem multifrequency point according to claim 1, its feature exist In：The upper strata four-arm spiral antenna and lower floor's four-arm spiral antenna equidistantly enclose by the consistent spiral conducting line of four root long degree Axis coiling forms；The upper strata four-arm spiral antenna receives the satellite-signal of 1.5G frequency ranges；Lower floor's four-arm spiral antenna Receive the satellite-signal of 1.2G frequency ranges.
- 3. a kind of four arm spiral broad-band antennas of satellite navigation multisystem multifrequency point according to claim 2, its feature exist In：The lead angle of the upper strata four-arm spiral antenna is 45 °, a diameter of 25mm, the spiral of lower floor's four-arm spiral antenna Lift angle is 65 °, and the width of spiral arm is 2mm, a diameter of 35mm.
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| CN201410680511.2A CN104393425B (en) | 2014-11-24 | 2014-11-24 | Four arm spiral broad-band antennas of satellite navigation multisystem multifrequency point |
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| CN104393425B true CN104393425B (en) | 2017-11-14 |
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| CN105226388B (en) * | 2015-09-25 | 2021-11-16 | 陕西永诺信息科技有限公司 | Full-band navigation antenna |
| CN105281025A (en) * | 2015-11-24 | 2016-01-27 | 蒋金香 | Router antenna with isolating and reflecting layers |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN202205895U (en) * | 2011-09-26 | 2012-04-25 | 北京华龙通科技有限公司 | Power distribution phase-shift impedance conversion feed network of four-arm helical antenna |
| CN204179238U (en) * | 2014-11-24 | 2015-02-25 | 中国电子科技集团公司第五十四研究所 | A kind of broad-band antenna being applicable to precision approach reference receiver |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101316005B (en) * | 2008-07-10 | 2012-02-15 | 华南理工大学 | Double-frequency band lamination medium loading helical antenna |
| CN101702463B (en) * | 2009-10-31 | 2013-07-24 | 华南理工大学 | Dielectric-loaded quadrifilar helix antenna of power-division phase-shift feed network |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202205895U (en) * | 2011-09-26 | 2012-04-25 | 北京华龙通科技有限公司 | Power distribution phase-shift impedance conversion feed network of four-arm helical antenna |
| CN204179238U (en) * | 2014-11-24 | 2015-02-25 | 中国电子科技集团公司第五十四研究所 | A kind of broad-band antenna being applicable to precision approach reference receiver |
Non-Patent Citations (1)
| Title |
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| 宽带小型化四臂螺旋天线的研究;徐庭威;《中国优秀硕士学位论文全文数据库信息科技辑》;20101215(第12期);第1-5、11-32页 * |
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