CN202633515U - Small inclination angle synchronous communication satellite superposition double-paraboloid elliptical field type antenna - Google Patents
Small inclination angle synchronous communication satellite superposition double-paraboloid elliptical field type antenna Download PDFInfo
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- CN202633515U CN202633515U CN 201220299848 CN201220299848U CN202633515U CN 202633515 U CN202633515 U CN 202633515U CN 201220299848 CN201220299848 CN 201220299848 CN 201220299848 U CN201220299848 U CN 201220299848U CN 202633515 U CN202633515 U CN 202633515U
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- paraboloid
- antenna
- satellite
- small inclination
- synchronous communication
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Abstract
The utility model relates to a small inclination angle synchronous communication satellite special for superposition double paraboloids elliptical field type antenna. The paraboloid antenna is divided into two parts which are a first paraboloid and a second paraboloid along an axial line, the focus points of the first paraboloid and the second paraboloid respectively form included angles with the axial line, and an elliptical horn wave guide tube is arranged between the focus point of the first paraboloid and the focus point of the second paraboloid. The paraboloid antenna covers the entire satellite drift orbit ranged from latitude of -8 degrees to +8 degrees, so that a fixed directional antenna can be used in a satellite ground station in which Chinese area positioning system (CAPS) is used for communication. Complexity of a ground antenna is decreased, and antenna cost and maintaining difficulty of the antenna are lowered.
Description
Technical field
The utility model relates to the oval field pattern antenna of the superimposed dual paraboloid of a kind of small inclination synchronous communication satellite.
Background technology
Utilize the transponder on the synchronous communication satellite, transmit the carrier signal that ranging code and navigation message are arranged by the modulation of area navigation central station emission, broadcasting earthward realizes the design concept that passive satellite navigates, and is the central principle that the CAPS system realizes the location.Transponder more than needed on the CAPS system synchronization communication satellite can also be transmitted the signal of communication by the emission of ground satcom, and this is the communication function of CAPS system.
The CAPS system controls earth stationary satellite through changing rail position and attitude; Make synchronous communication satellite develop into the inclined plane satellite of small inclination; Synchronous satellite is only implemented the maintenance and the adjustment of longitudinal position; Do not do the maintenance and the adjustment of latitude direction position, let it freely drift about in the latitude direction.Like this, can use the working track of less attitude of satellite adjustment fuel maintenance satellite, greatly prolong the useful life of synchronous communication satellite.So just open up the 2nd life cycle utilization of fixed service satellite---navigation communications applications life cycle.Generally, the CAPS system can prolong synchronous satellite 5-8 in useful life, has so just greatly reduced the communication cost of institute of CAPS system employing stationary satellite satellite.
See from the angle of location navigation, utilize the fixed service satellite drift, then can improve the space layout of constellation, reduce DOP value, the raising positioning accuracy for the synchronous inclined plane satellite of small inclination becomes another type of constellation of navigation positioning system
[3～5]After the fixed service satellite became the small inclination satellite and is used for the relay type global position system, its satellite orbit parameter still need be by measuring the forecast of rail system.Locate concerning the requirement of constellation for satellite navigation, and do not require that the satellite strictness is on the equatorial synchronous orbit position, have drift value better on the contrary in the latitude direction, and drift value is the bigger the better.After retired satellite is not done latitude direction control, can make every year satellite increase the drift amplitude in North and South direction, drift increases between annual about 0.75 ° ~ 0.94 ° of speed and changes, and the cycle of variation is about 18.6a.The accumulative total effect of drift makes the orbit inclination angle of satellite As time goes on constantly become big, and maximum can reach about about 14.5 °, reduces gradually again then, becomes the synchronous inclined plane navigation satellite of a small inclination.
But, when utilizing transponder on the CAPS navigation satellite to use as communication port, ground-plane antenna need carry out ± 8 ° from motion tracking.This has just greatly increased the antenna cost and the failure rate of CAPS system ground satellite station.Therefore, need a kind of new antenna to address the above problem.
Summary of the invention
The utility model proposes the oval field pattern antenna of the superimposed dual paraboloid of a kind of small inclination synchronous communication satellite.The purpose of the utility model realizes through following technical scheme:
The oval field pattern antenna of the superimposed dual paraboloid of small inclination synchronous communication satellite, said parabolic antenna is divided into two parts along axis, first parabolic and second parabola, said first parabola and the second paraboloidal focus form an angle with axis respectively; Between the said first paraboloidal focus and the second paraboloidal focus elliptical horn waveguide is set.
The advantage of the utility model is:
For the transponder communication function that overcomes the CAPS navigation satellite must be by the deficiency from motion tracking ground station; This programme has proposed the burnt antenna of fan; Contain latitude ± 8 ° whole satellite drift track, the ground satellite station that makes the CAPS system do communication can adopt the fixed directional antenna.Reduce the complexity of ground-plane antenna, reduced antenna cost and maintenance difficulties.Make and the cheap earth station equipment that is complementary has with it been arranged cheap CAPS system communication channel system.
Description of drawings
Fig. 1: the structural representation of the utility model;
Fig. 2: the utility model is in vertical 2D direction analogous diagram;
Fig. 3: the utility model is in horizontal 2D direction analogous diagram.
Embodiment
Be illustrated in figure 1 as the oval field pattern antenna structure view of the superimposed dual paraboloid of the utility model small inclination synchronous communication satellite.The oval field pattern antenna of the superimposed dual paraboloid of small inclination synchronous communication satellite is divided into two parts along axis, first parabolic and second parabola, and said first parabola and the second paraboloidal focus form an angle with axis respectively; Between the said first paraboloidal focus and the second paraboloidal focus elliptical horn waveguide is set.Like Fig. 2-3 is that the utility model is respectively in vertical 2D direction, horizontal 2D direction analogous diagram.
Should be appreciated that the above detailed description of the technical scheme of the utility model being carried out by preferred embodiment is schematic and nonrestrictive.Those of ordinary skill in the art can make amendment to the technical scheme that each embodiment put down in writing on the basis of reading the utility model specification, perhaps part technical characterictic wherein is equal to replacement; And these are revised or replacement, do not make the spirit and the scope of each embodiment technical scheme of essence disengaging the utility model of relevant art scheme.
Claims (1)
1. the oval field pattern antenna of the superimposed dual paraboloid of small inclination synchronous communication satellite; It is characterized in that; Said parabolic antenna is divided into two parts along axis, first parabolic and second parabola, and said first parabola and the second paraboloidal focus form an angle with axis respectively; Between the said first paraboloidal focus and the second paraboloidal focus elliptical horn waveguide is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220299848 CN202633515U (en) | 2012-06-20 | 2012-06-20 | Small inclination angle synchronous communication satellite superposition double-paraboloid elliptical field type antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220299848 CN202633515U (en) | 2012-06-20 | 2012-06-20 | Small inclination angle synchronous communication satellite superposition double-paraboloid elliptical field type antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202633515U true CN202633515U (en) | 2012-12-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220299848 Expired - Fee Related CN202633515U (en) | 2012-06-20 | 2012-06-20 | Small inclination angle synchronous communication satellite superposition double-paraboloid elliptical field type antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202633515U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103515714A (en) * | 2012-06-20 | 2014-01-15 | 北京宏达科美科技有限公司 | Slightly-inclined synchronous communication satellite superimposed double-paraboloid ellipsoid field antenna |
-
2012
- 2012-06-20 CN CN 201220299848 patent/CN202633515U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103515714A (en) * | 2012-06-20 | 2014-01-15 | 北京宏达科美科技有限公司 | Slightly-inclined synchronous communication satellite superimposed double-paraboloid ellipsoid field antenna |
| CN103515714B (en) * | 2012-06-20 | 2016-12-21 | 北京宏达科美科技有限公司 | Small inclination synchronous communication satellite overlapping dual paraboloid ellipse field pattern antenna |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121226 Termination date: 20210620 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |