CN86211074U - Board type multi-focal-distance paraboloidal aerial for ground satellite station - Google Patents
Board type multi-focal-distance paraboloidal aerial for ground satellite station Download PDFInfo
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- CN86211074U CN86211074U CN 86211074 CN86211074U CN86211074U CN 86211074 U CN86211074 U CN 86211074U CN 86211074 CN86211074 CN 86211074 CN 86211074 U CN86211074 U CN 86211074U CN 86211074 U CN86211074 U CN 86211074U
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- parabolic
- paraboloidal
- utility
- focal
- board type
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Abstract
The utility model adopts many paraboloidal concentric cirques with diameter distributing in a certain rule. Each cirque is in the same plane to compose a board type paraboloidal reflecting body. Then electromagnetic waves from axial direction can gather to a feed source to guarantee the electromagnetic waves in phase and make energy add to be integral paraboloidals with the same calibres. Because of the structure characteristics of the board type, the utility model can be assembled with components by moulding plastic. The utility model overcomes the defects of a traditional integral paraboloidal reflecting body and decreases the cost under 1/3. The utility model can be also used in an optical device as a thin reflecting mirror.
Description
The utility model belongs to the ground satellite station reception antenna.
Existing satellite ground station antenna all uses whole shape parabolic reflector, and the electromagnetic wave of satellite radiation is gathered in the feed place, reaches the purpose of directional reception.Traditional parabolic reflector is made with the metallic plate roll extrusion usually, relies on the figuration carriage, in the hope of keeping its accurate geometry.Use is at the satellite earth antenna of C-band (frequency is 3.7～4.2 thousand megahertzes), diameter reaches 3～6 meters, volume is big, and weight reaches several tons, owing to be out of shape from heavy load, gain is reduced, because difficulty is made, transports, installs, is calibrated all in the restriction of weight and processing technology, costs an arm and a leg, accounting for 60～70% of whole ground station, is the major obstacle that popularizes the satellite television reception technique.Abroad once delivered and adopt wooden tabular dielectric lens antenna or adopt many layered transducer elements formula plate aerial, but, all do not have the high-gain of parabolic reflector formula antenna, and do not come into operation because loss is big, efficient is low or the frequency range restriction as reception antenna.
Task of the present invention is: a kind of high-gain with parabolic reflector formula antenna is provided, and be flat satellite earth antenna in shape, because flat design feature is reduced to 1/3～6/10 of bore tradition parabolic antenna the satellite earth antenna cost, thereby makes whole grounded receiving station cost reduce by 1/2～2/3.
The annular reflection band that the present invention adopts many diameters to distribute according to certain rules, arrange in one plane, these annular reflection bands are the different paraboloidal parts of many focal lengths, and each garden ring is all in the same plane, thereby consists of a plate shaped reflecting surface with concentric garden shape ripple.Because the focus difference of each garden ring-type parabolic reflector band is the integral multiple of operation wavelength, the electromagnetic wave that makes the satellite radiation is after each endless belt reflection, all can focus on the feed place on the axis, and the electromagnetic wave path-difference in each road is the integral multiple of operation wavelength, so same-phase addition, feed place energy is strengthened, reach the purpose of directional reception.
Figure one is one of embodiments of the invention.
Feed 1 is by pole 2(4 root) be supported on the skeleton, over against the reflecting surface center and be in the focal length place of foveal reflex face.By the plastic plate press forming, the reflecting surface 3 of surperficial coated metal forming is installed on the skeleton made from shapes such as aluminium, steel 4, and skeleton 4 relies on support 5 and is bearing in ground.Regulate the inclination angle and the placement direction of support, the satellite that the antenna beam centrally aligned need be received.
Figure two is a schematic diagram of the present invention
OO ' is an antenna axis, when electric wave from the incident of a direction, the parabolic A reflection through the center is because the focal length of A is F
0So electric wave is gathered in the center of feed 1; When electric wave by the incident of b direction, arrive on the tore of reflection B, because B is that focal length is F
1Paraboloidal ring-type partly, so can make electric wave gather its focus place, promptly also concentrate on the center of feed 1.Because F
0With F
1Only differ a wavelength (or the integral multiple of wavelength, thus at feed 1 place, a direction electric wave and b direction electric wave, it is a wavelength that its wave-path differs, the two phase place is identical, the electric wave energy is a sum of the two.In like manner C, d, e ... the electric wave that direction transmits is through C, D, E ... after each parabolic endless belt reflection, all in feed 1 place same-phase addition, energy is each road electromagnetic wave energy sum.Being about in the reflecting surface diameter range electromagnetic wave (plane wave front) that (OO ') vertically transmit becomes spheric wave front and is gathered in the feed place, reach the purpose of directional reception, and have with the close gain of the whole single focal length parabolic antenna of bore, and its volume reduces, and to be thickness be the plate shaped of δ.
On this reflector (3), the transition face place between two endless belt, but because of no radio wave attenuation hole-opening, reduce the frontal resistance of reflecting surface, improve wind resistance.
Figure three is a fan-shaped assembly of this plate shaped antenna reflective face.Entire antenna reflecting surface 6～8 of assemblies thus is spliced.
Because construction features provided by the invention can reduce the volume of parabolic reflector, and employing assembly assembly unit, so can adopt plastic mould pressing, save metal, weight reduction guarantees face body geometrical precision, wind resistance is anticorrosive, be suitable for producing by batch, be beneficial to transportation, installation, simplify the debugging calibration procedure, reduce the antenna cost greatly.The present invention also can be applicable in the Optical devices speculum as thin type searchlight, spotlight etc.
Claims (3)
1, the parabolic flat plate type satellite of many focal lengths grounded receiving station antenna that is different from conventional satellite grounded receiving station integral type parabolic antenna.It is characterized in that reflector adopts the garden ring-type parabolic reflector band of different-diameter to arrange in concentric garden mode.Each garden ring is in together on the plane, constitutes plate shaped parabolic reflector.
2, as the described flat plate type satellite of claim 1. grounded receiving station antenna, it is characterized in that each parabolic endless belt of reflector component part, be respectively the part in the parabola of different focal.
3, as claim 1. or 2. described flat plate type satellite grounded receiving station antennas, the difference that it is characterized in that the focal length of each parabolic endless belt is the integral multiple of operation wavelength.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 86211074 CN86211074U (en) | 1986-12-29 | 1986-12-29 | Board type multi-focal-distance paraboloidal aerial for ground satellite station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 86211074 CN86211074U (en) | 1986-12-29 | 1986-12-29 | Board type multi-focal-distance paraboloidal aerial for ground satellite station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN86211074U true CN86211074U (en) | 1987-12-12 |
Family
ID=4812617
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 86211074 Withdrawn CN86211074U (en) | 1986-12-29 | 1986-12-29 | Board type multi-focal-distance paraboloidal aerial for ground satellite station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN86211074U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101877436A (en) * | 2009-12-15 | 2010-11-03 | 姚福来 | Multilayer planar film antenna capable of curling |
| 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 |
| CN105375115A (en) * | 2015-12-15 | 2016-03-02 | 中国工程物理研究院应用电子学研究所 | Large-diameter millimeter-wave Fresnel zone plate (FZP) antenna processed in blocks and assembled |
| CN111540998A (en) * | 2020-05-09 | 2020-08-14 | 刘发明 | Portable antenna applied to 5G mobile communication |
-
1986
- 1986-12-29 CN CN 86211074 patent/CN86211074U/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101877436A (en) * | 2009-12-15 | 2010-11-03 | 姚福来 | Multilayer planar film antenna capable of curling |
| 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 |
| CN105375115A (en) * | 2015-12-15 | 2016-03-02 | 中国工程物理研究院应用电子学研究所 | Large-diameter millimeter-wave Fresnel zone plate (FZP) antenna processed in blocks and assembled |
| CN111540998A (en) * | 2020-05-09 | 2020-08-14 | 刘发明 | Portable antenna applied to 5G mobile communication |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |