CN1101172A - Reflection-side antenna - Google Patents
Reflection-side antenna Download PDFInfo
- Publication number
- CN1101172A CN1101172A CN 93111979 CN93111979A CN1101172A CN 1101172 A CN1101172 A CN 1101172A CN 93111979 CN93111979 CN 93111979 CN 93111979 A CN93111979 A CN 93111979A CN 1101172 A CN1101172 A CN 1101172A
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- China
- Prior art keywords
- antenna
- reflecting surface
- parabolic
- correction
- cylinder
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Abstract
The present invention discloses a reflecting surface aerial. The aerial uses the phase correcting plane of one dimensional Fresnel zone, the phase correcting amount is one-fourth of the wave length. The invention has the advantages of high efficiency and good off-axis scanning feature.
Description
The invention relates to a kind of reflector antenna.
Existing associated antenna comprises: rotation paraboloidal-reflector antenna, Fresnel region plane reflector antenna, parabolic-cylinder antenna etc.
The rotation paraboloidal-reflector antenna widely uses in actual engineering, and its reflecting surface is the partial rotation parabola, and its operation principle is based on the light path Continuous Compensation correction in the theory of geometric optics.Because its complex structure, to reflecting surface requirement on machining accuracy height, thereby difficulty of processing is big, and is especially true to the processing of heavy caliber reflecting surface.In addition, its off-axis scanning feature is poor, thereby the rotation that over-borrowing helps reflecting surface realizes wide-angle reception.
The Fresnel region plane reflector antenna is used for some special occasions, its reflecting surface is tabular, and finish focussing force by circular or ellipse garden shape phase place correction endless belt thereon, the operation principle of reflecting surface is synthetic based on the endless belt diffraction field, and phase correcting plate has half-wavelength, quarter-wave equiphase correction.This class antenna is processed with certain requirement to the endless belt on the reflecting surface, and the Antenna Design technology is still not mature enough, and ripe half-wave correction reflecting surface efficient commonly used is too low, does not possess practical value.
How parabolic-cylinder antenna is as the fan-shaped beam reflector antenna.Reflecting surface is the part parabolic cylinder, and its work is based on geometric optical theory, and the caustic district of reflecting surface is a focal line, so need by the line source feed.Such antenna also can constitute the double-reflecting face searchlight antenna by two parabolic reflectors, but the energy leakage is serious, thereby antenna efficiency is reduced, and the double-reflecting face assembly difficulty is big in addition, the scan characteristic difference also has specific (special) requirements to feed, thus its practical be worth little.
The present invention is intended to design a kind of reflector antenna, has highly effective, scan characteristic is good, processing is simple, advantage such as with low cost, is applicable to various military civilian frequency electromagnetic waves R-T units.
Technical scheme of the present invention is to adopt the Fresnel phase correction, and the phase place correction is a quarter-wave, forms the phase place modification region of vertical bar band shape on reflecting surface, along the dimension at vertical bar band place reflecting surface is bent to and throws cylinder (1) (as Fig. 1).The focal length of parabolic cylinder (1) is the design focal length of Fresnel phase correction, forms single crooked needle-like wave beam and fan-shaped beam reflector antenna.
Advantage of the present invention is that this antenna efficiency is suitable with rotation paraboloidal-reflector antenna efficient, is better than the efficient of Fresnel region plane reflector antenna and parabolic-cylinder antenna; The off-axis scanning feature of this antenna reflective face on a dimension can reach the level of Fresnel region plane reflector antenna, rotation paraboloidal-reflector antenna and the parabolic-cylinder antenna of surpassing far away; This antenna process and assemble is simple, with low cost.
Accompanying drawing and description of drawings:
Fig. 1 front view of the present invention
Fig. 2 vertical view of the present invention
Fig. 3 cross-sectional view of the present invention
Fig. 4 embodiment schematic diagram
Wherein: (1) is through the revised parabolic cylinder of Fresnel phase; (2) be feed; (3) be the support of feed.
One embodiment of the present of invention are many stars satellite earth antennas.
The reflecting surface of this satellite earth antenna is parabolic cylinder (1), outside dimension is 1.2 meters * 1.5 meters, focal length is 0.75 meter, C and Ku wave band are carried out quarter-wave phase place correction design simultaneously, the last Fresnel band area code of parabolic cylinder (1) puts in order and is: middle area code gets 1, left and right sides area code near area code 1 gets 2, and all the other area codes arrange that the rest may be inferred, and strip width and height are as following table:
The area code width (centimetre) highly (centimetre)
1 19.444 0
2 4.056 0.314
3 3.131 0.628
4 2.656 0.942
5 2.355 1.256
6 2.181 1.570
7 1.981 1.884
8 1.854 2.198
9 1.752 2.512
10 1.667 2.826
11 1.594 3.140
12 1.532 3.454
13 4.295 0
14 3.947 0.942
15 3.688 1.884
16 3.487 2.826
17 3.325 0
18 3.192 0.942
19 3.080 1.884
20 2.985 2.826
21 2.903 0
22 2.832 0.942
23 2.768 1.884
24 2.713 2.826
25 1.344 0
Be parallel to and place a feed (2) on the focal line of parabolic cylinder (1) length of side, feed (2) is supported by support (3).Adopt 30 ℃ of good tuners and the C-4 of Toshiba receiver to receive Phase Alternation Line system Yunnan of 105.5 ℃ of AsiaSat, Guizhou station synchronization, obtain clear, stable chromatic image.Test receives 105.5 °, 110.5 °, 115.5 ° three satellite-signals again.When not rotating reflecting surface, the feed that each satellite receives places each correspondence position, can receive the program of these three satellites simultaneously.
Claims (1)
1, a kind of reflector antenna, reflecting surface are a parabolic cylinder (1), it is characterized in that being distributed with the vertical bar shaped zone of adopting the Fresnel phase correction on the parabolic cylinder (1), and the phase place correction is a quarter-wave.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93111979 CN1101172A (en) | 1993-09-29 | 1993-09-29 | Reflection-side antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93111979 CN1101172A (en) | 1993-09-29 | 1993-09-29 | Reflection-side antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1101172A true CN1101172A (en) | 1995-04-05 |
Family
ID=4989726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93111979 Pending CN1101172A (en) | 1993-09-29 | 1993-09-29 | Reflection-side antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1101172A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101943793A (en) * | 2010-07-30 | 2011-01-12 | 杭州天升实业有限公司 | Plate-type condenser lens and solar energy heat collection system |
| CN106654565A (en) * | 2015-12-20 | 2017-05-10 | 中国电子科技集团公司第二十研究所 | Integrated ultra wide band bias parabolic cylindrical surface array antenna based on MIMO system phased array |
| CN110061342A (en) * | 2019-03-26 | 2019-07-26 | 中国科学院国家天文台 | A kind of rotatable parabolic-cylinder antenna |
-
1993
- 1993-09-29 CN CN 93111979 patent/CN1101172A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101943793A (en) * | 2010-07-30 | 2011-01-12 | 杭州天升实业有限公司 | Plate-type condenser lens and solar energy heat collection system |
| CN106654565A (en) * | 2015-12-20 | 2017-05-10 | 中国电子科技集团公司第二十研究所 | Integrated ultra wide band bias parabolic cylindrical surface array antenna based on MIMO system phased array |
| CN110061342A (en) * | 2019-03-26 | 2019-07-26 | 中国科学院国家天文台 | A kind of rotatable parabolic-cylinder antenna |
| CN110061342B (en) * | 2019-03-26 | 2021-02-26 | 中国科学院国家天文台 | Rotatable parabolic cylinder antenna |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |