CN207664224U - RDSS double frequency round polarized orients shaped aerial structure - Google Patents
RDSS double frequency round polarized orients shaped aerial structure Download PDFInfo
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- CN207664224U CN207664224U CN201820028081.XU CN201820028081U CN207664224U CN 207664224 U CN207664224 U CN 207664224U CN 201820028081 U CN201820028081 U CN 201820028081U CN 207664224 U CN207664224 U CN 207664224U
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- rdss
- double frequency
- orients
- frequency round
- microwave
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Abstract
The utility model is related to antenna technical fields more particularly to a kind of RDSS double frequency round polarized to orient shaped aerial structure.RDSS double frequency round polarized orientation shaped aerial structure disclosed by the utility model simultaneously works in two frequencies of 1.61568GHz and 2.49175GHz；And the isolation that two frequencies are improved by installing metal insulated column compares performance with the axis for improving antenna；And by designing choke groove on reflecting plate, significantly reduce antenna backlobe；The antenna structure is had excellent performance and of low cost, the reception and transmitting of RDSS signals can be better achieved, and improve the integrated level of system.
Description
Technical field
The utility model is related to antenna technical fields more particularly to a kind of RDSS double frequency round polarized to orient shaped aerial knot
Structure.
Background technology
RDSS full name in English Radio Determination Satellite Service, abridge RDSS, is a kind of satellite
Radio determination service, the range measurement of user to satellite and position calculate can not be by user itself complete independently, it is necessary to by outer
Portion's system is completed by the response of user.Its main feature is that by user's response, while completing to position, complete to outside
The Subscriber Location Report of system can also be achieved positioning and be integrated with what is communicated.The first generation triones navigation system in China is one
Typical RDSS systems.The second generation triones navigation system in China also supports RDSS.
Currently, RDSS antennas are mostly omnidirectional antenna, the gain of antenna is relatively low, and secondary lobe rejection ability is weaker, and is easy to receive
To the clutter on ground, it is unfavorable for the transmitting-receiving of useful signal.In addition, due to big-dipper satellite RDSS receive and tranmitting frequency difference compared with
Greatly, generally use common antenna to satellite emission signal, another slave antenna receives satellite-signal, and the integrated level of antenna is not high, no
Conducive to the laying of earth station.For the current existing antenna for integrating sending and receiving, due to coupling signal, every
It is general from degree all poor, it may appear that the case where transmitting signal interference receives signal, and the Circular polarization ratio of antenna is also poor.Therefore
It is badly in need of a kind of double frequency day with directional characteristic, isolation is higher, the electric frequency of back lobe is smaller, Circular polarization ratio performance is good of invention
Line can be better achieved the reception and transmitting of RDSS signals, improve the integrated level of system.
Utility model content
In view of the above problems, the understanding of especially low back lobe micro-strip circular polarized antenna, for Big Dipper RDSS double frequencies
The requirement of antenna：1. tranmitting frequency 1.61568GHz, bandwidth 8.16MHz, receives frequency 2.49175GHz, bandwidth 8.16MHz；2.
It is required that forming 130 ° of broad beams in azimuth direction, 30 ° of narrow beams are formed in pitch orientation；3. gain in launching beam coverage area
>=0dB receives gain >=1.5dB in beam coverage；4. transmitting antenna uses left-hand circular polarization, reception antenna is using right
Hand circular polarization；5. Circular polarization ratio is less than 5dB；6. back lobe inhibits to be more than 20dB；7. receive-transmit isolation is more than 25dB；8. antenna weight
Amount is less than 50kg.
The utility model devises out a kind of RDSS double frequency round polarized orientation according to a large amount of simulation calculation and actual test
Shaped aerial structure.The RDSS double frequency round polarized orientation shaped aerial structure be provided with from top to bottom antenna body, supporting table with
And reflecting plate；The antenna body is by 2 1.61568GHz circular polarized antennas radiation fins, 2 2.49175GHz circular polarized antennas
Radiation fin, feeding network, several metal insulated columns and microwave-medium plate press；2 1.61568GHz circular polarisation
Aerial radiation piece forms two-element antenna array；2 2.49175GHz circular polarized antennas radiation fins form two-element antenna array；
Metal insulated column described in several is arranged in the round distributing point for being surrounded on the 2.49175GHz circular polarized antennas radiation fin
Around.
Preferably, the supporting table is trapezoidal frustum.
Preferably, it is provided with 6 metals in the supporting table and guides column into.
Preferably, it is dismountable that the metal, which guides column into,.
Preferably, several choke grooves are provided on the reflecting plate.
Preferably, the reflecting plate is rectangle.
Preferably, the microwave-medium plate includes the first microwave-medium plate, the second microwave-medium plate and third microwave-medium
Plate.
It is furthermore preferred that there are two the antenna spokes of 2.49175GHz frequencies for the parallel printing in the front of the first microwave-medium plate
Penetrate piece.
It is furthermore preferred that there are two the antenna spokes of 1.61568GHz frequencies for printing parallel at the back side of the first microwave-medium plate
Penetrate piece.
It is furthermore preferred that copper is covered at the back side of the second microwave-medium plate.
It is furthermore preferred that the back side of the third microwave-medium plate is printed with antenna feeding network.
Compared with prior art, the utility model has the advantages that：
RDSS double frequency round polarized orientation shaped aerial structure disclosed by the utility model simultaneously works in 1.61568GHz
With two frequencies of 2.49175GHz；And the isolation of two frequencies is improved by installation metal insulated column and improves antenna
Axis compare performance；And by designing choke groove on reflecting plate, significantly reduce antenna backlobe；The antenna structure is had excellent performance
And it is of low cost, the reception and transmitting of RDSS signals can be better achieved, and improve the integrated level of system.
Description of the drawings
Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, the utility model and its spy
Sign, shape and advantage will become more apparent.Identical label indicates identical part in whole attached drawings.It can be by
Attached drawing is drawn according to ratio, it is preferred that emphasis is the purport of the utility model is shown.
Fig. 1 is the schematic diagram that RDSS double frequency round polarized orients shaped aerial structure in the utility model embodiment；
Fig. 2 is the structural exploded view of antenna body in the utility model embodiment；
Fig. 3 is the front elevation and back view of the first microwave-medium plate in the utility model embodiment；
Fig. 4 is the back view of third microwave-medium plate in the utility model embodiment；
Fig. 5 is the structural schematic diagram of supporting table in the utility model embodiment；
Fig. 6 is the structural schematic diagram of reflecting plate in the utility model embodiment；
Reference numeral is as follows：
Antenna body 1-0, supporting table 2-0, reflecting plate 3-0, the first microwave-medium plate 1-1, the second microwave-medium plate 1-2,
Third microwave-medium plate 1-3, metal insulated column 1-2-1,2.49175GHz circular polarized antenna radiation fin 1-1-1,1.61568GHz
The feeder network 1-3-2 of the feeder network 1-3-1,2.49175GHz of circular polarized antenna radiation fin 1-1-2,1.61568GHz, gold
Category guides column 2-1 into, the first choke groove 3-1, the second choke groove 3-2, third choke groove 3-3, the 4th choke groove 3-4, the 5th chokes
Slot 3-5 installs the platform 3-6 of supporting table.
Specific implementation mode
The utility model is further described with specific embodiment below in conjunction with the accompanying drawings, but not as this practicality
Novel restriction.
As shown in figures 1 to 6, present embodiment discloses a kind of RDSS double frequency round polarized to orient shaped aerial structure, specifically,
RDSS double frequency round polarized orientation shaped aerial structure is provided with antenna body 1-0, supporting table 2-0 and reflecting plate from top to bottom
3-0；Antenna body 1-0 is by 2 1.61568GHz circular polarized antenna radiation fins 1-1-2,2 2.49175GHz circular polarized antenna spokes
Piece 1-1-1, feeding network, several metal insulated columns and microwave-medium plate is penetrated to press；2 1.61568GHz circular polarisation days
Beta radiation piece forms two-element antenna array；2 2.49175GHz circular polarized antenna radiation fins form two-element antenna array.
More specifically, antenna body 1-0 is pressed by the AD450 microwave-medium plates that 3 pieces of thickness are 1.524mm, should
AD450 microwave-medium plates are divided into the first microwave-medium plate 1-1, the second microwave-medium plate 1-2 and third microwave-medium plate 1-3,
Cover copper in the back side of second microwave-medium plate 1-2.
Two resonance are printed in the aerial radiation piece 1-1- of 2.49175GHz frequencies in the front of the first microwave-medium plate 1-1
1, the distance between aerial radiation piece controls near half-wavelength.At the back side of the first microwave-medium plate 1-1, there are two humorous for printing
It shakes in the aerial radiation piece 1-1-2 of 1.61568GHz frequencies, the distance between aerial radiation piece controls near half-wavelength.4
The diagonal line of aerial radiation piece is vertical with the long side of dielectric-slab, and the day of the 2.49175GHz frequencies in the second microwave-medium plate
Around one circle metal insulated column 1-2-1 of arrangement around beta radiation piece 1-1-1 points.It is printed respectively at the back side of third microwave-medium plate
There are feeding network 1-3-1 and resonance of the resonance in the aerial radiation piece of 1.61568GHz frequencies in the antenna of 2.49175GHz frequencies
The feeding network 1-3-2 of radiation fin.
Antenna body 1-0 is obtained after 3 blocks of microwave-medium plates are pressed.Antenna body 1-0 is installed on supporting table 2-0,
The surrounding that the one side of antenna is equipped on supporting table 2-0 installs 6 metals and guides column 2-1 into again, for guiding electric current, improves axis
Than can be adjusted to its length and diameter according to test case, so as to adjust antenna performance.
Antenna body 1-0 and supporting table 2-0 is installed to after installation is complete, then by the assembly on reflecting plate 3-0, is obtained
RDSS double frequency round polarized orients shaped aerial structure.
In a preferred embodiment of the utility model, above-mentioned supporting table is trapezoidal frustum.By optimizing trapezoidal frustum
Height can improve the directional diagram of antenna and axis compares performance.Metal is guided in installation near the line ontology of trapezoidal frustum heaven
Column can further improve antenna axial ratio performance.
In a preferred embodiment of the utility model, it is dismountable that above-mentioned metal, which guides column into,.
In a preferred embodiment of the utility model, setting is there are five choke groove in said reflection plate, and respectively the
One choke groove 3-1, the second choke groove 3-2, third choke groove 3-3, the 4th choke groove 3-4 and the 5th choke groove 3-5, for reducing
The electric current for flowing to the antenna back side suppresses the back lobe level of antenna.The platform 3-6 of installation supporting table is additionally provided on the reflecting plate.
In a preferred embodiment of the utility model, said reflection plate is rectangle.
To sum up, the utility model discloses a kind of RDSS double frequency round polarized to orient shaped aerial structure, RDSS double frequencies circle
Polarization orientation shaped aerial structure simultaneously works in two frequencies of 1.61568GHz and 2.49175GHz；And by installing gold
The isolation that category insulated column improves two frequencies compares performance with the axis for improving antenna；And by designing chokes on reflecting plate
Slot significantly reduces antenna backlobe；The antenna structure is had excellent performance and of low cost, and RDSS signals can be better achieved
It receives and emits, and improve the integrated level of system.
It should be appreciated by those skilled in the art that those skilled in the art are combining the prior art and above-described embodiment can be with
Realize change case, this will not be repeated here.Such change case has no effect on the substantive content of the utility model, not superfluous herein
It states.
The preferred embodiment of the utility model is described above.It is to be appreciated that the utility model not office
It is limited to above-mentioned particular implementation, wherein the equipment and structure be not described in detail to the greatest extent are construed as with the common side in this field
Formula is practiced；Any technical person familiar with the field all may be used in the case where not departing from technical solutions of the utility model ambit
Many possible changes and modifications are made to technical solutions of the utility model using the methods and technical content of the disclosure above, or are repaiied
It is changed to the equivalent embodiment of equivalent variations, this has no effect on the substantive content of the utility model.Therefore, every without departing from this practicality
The content of new technique scheme, any simple modification made to the above embodiment of foundation the technical essence of the utility model, etc.
With variation and modification, still fall within technical solutions of the utility model protection in the range of.
Claims (10)
1. a kind of RDSS double frequency round polarized orients shaped aerial structure, which is characterized in that the RDSS double frequency round polarized orientation is assigned
Shape antenna structure is provided with antenna body, supporting table and reflecting plate from top to bottom；
The antenna body is by 2 1.61568GHz circular polarized antennas radiation fins, 2 2.49175GHz circular polarized antennas radiation
Piece, feeding network, several metal insulated columns and microwave-medium plate press；
2 1.61568GHz circular polarized antennas radiation fins form two-element antenna array；
2 2.49175GHz circular polarized antennas radiation fins form two-element antenna array；
Metal insulated column described in several is arranged in the round feedback for being surrounded on the 2.49175GHz circular polarized antennas radiation fin
Around electricity point.
2. RDSS double frequency round polarized according to claim 1 orients shaped aerial structure, which is characterized in that the supporting table
For trapezoidal frustum.
3. RDSS double frequency round polarized according to claim 1 orients shaped aerial structure, which is characterized in that the supporting table
On be provided with 6 metals and guide column into.
4. RDSS double frequency round polarized according to claim 1 orients shaped aerial structure, which is characterized in that the metal draws
It is dismountable to column.
5. RDSS double frequency round polarized according to claim 1 orients shaped aerial structure, which is characterized in that the reflecting plate
On be provided with several choke grooves.
6. RDSS double frequency round polarized according to claim 1 orients shaped aerial structure, which is characterized in that the reflecting plate
For rectangle.
7. RDSS double frequency round polarized according to claim 1 orients shaped aerial structure, which is characterized in that the microwave is situated between
Scutum includes the first microwave-medium plate, the second microwave-medium plate and third microwave-medium plate.
8. RDSS double frequency round polarized according to claim 7 orients shaped aerial structure, which is characterized in that described first is micro-
There are two the aerial radiation pieces of 2.49175GHz frequencies for the parallel printing in front of wave dielectric-slab.
9. RDSS double frequency round polarized according to claim 7 orients shaped aerial structure, which is characterized in that described first is micro-
There are two the aerial radiation pieces of 1.61568GHz frequencies for printing parallel at the back side of wave dielectric-slab.
10. RDSS double frequency round polarized according to claim 7 orients shaped aerial structure, which is characterized in that described second
Cover copper in the back side of microwave-medium plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820028081.XU CN207664224U (en) | 2018-01-08 | 2018-01-08 | RDSS double frequency round polarized orients shaped aerial structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820028081.XU CN207664224U (en) | 2018-01-08 | 2018-01-08 | RDSS double frequency round polarized orients shaped aerial structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207664224U true CN207664224U (en) | 2018-07-27 |
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ID=62943378
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820028081.XU Active CN207664224U (en) | 2018-01-08 | 2018-01-08 | RDSS double frequency round polarized orients shaped aerial structure |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113224520A (en) * | 2021-04-19 | 2021-08-06 | 北京机电工程研究所 | Transmit-receive common-aperture wide-angle-domain scanning satellite communication antenna array and aircraft with same |
-
2018
- 2018-01-08 CN CN201820028081.XU patent/CN207664224U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113224520A (en) * | 2021-04-19 | 2021-08-06 | 北京机电工程研究所 | Transmit-receive common-aperture wide-angle-domain scanning satellite communication antenna array and aircraft with same |
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