CN2252415Y - Satellite receiving antenna - Google Patents
Satellite receiving antenna Download PDFInfo
- Publication number
- CN2252415Y CN2252415Y CN 96232595 CN96232595U CN2252415Y CN 2252415 Y CN2252415 Y CN 2252415Y CN 96232595 CN96232595 CN 96232595 CN 96232595 U CN96232595 U CN 96232595U CN 2252415 Y CN2252415 Y CN 2252415Y
- Authority
- CN
- China
- Prior art keywords
- reflector
- antenna
- angle
- feed
- satellite earth
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a satellite receiving antenna which mainly comprises an antenna holder, a feed source support, a reflector, an angle regulating mechanism and a feed source installed on the focus of the reflector. The feed source is provided with a direction angle of 46 to 55 DEG. The reflector is quadratic curved-surface reflector of which the opening surface is elliptical and is arranged on the antenna holder with an opening surface angle of 62 to 67 DEG. With the obliquely arranged feed source and the reflector with the elliptical opening surface, the utility model has enhanced electric property of the antenna, and simple and practical installation and adjustment. Besides being used for receiving sanitation TV signals, the utility model can be also used for receiving communication signals.
Description
The utility model relates to a kind of Ku wave band antenna of receiving satellite signal.
Existing satellite earth antenna is made of mount pad, circular aperture parabolic reflector and the horn feed and the aerial angle adjusting mechanism that are arranged on the parabolic rotating shaft by support.The deficiency of this antenna is because feed is in the antenna beam center, stop that satellite-signal arrives the electromagnetic energy of parabolic reflector, make the antenna receiving efficiency reduce, noise increases, this is very disadvantageous for the satellite receiving system that requires to be operated in the low noise state, particularly as satellite television receiving antenna, the noise height of antenna can make the G/T value of system descend significantly, makes the television reception image quality grand low; Its another deficiency is that its horn feed adopts corrugated horn band choke groove loudspeaker and rectangular horn several mostly.Wherein, the corrugated horn productivity is very poor, is unfavorable for producing in enormous quantities; The loudspeaker of band choke groove and the irradiation performance of rectangular horn feed when wideband operation change all greatly, make the systematic function instability of antenna.
The purpose of this utility model is that existing satellite earth antenna is improved, and provides a kind of application frequency range band, noise temperature low, the satellite earth antenna that reception is good.
Formation of the present utility model comprises antenna mount, feed support, reflector, angle-adjusting mechanism and is installed in feed on the reflector focus, it is 46～55 ° sensing angle that described feed has one, reflector is that an actinal surface is shaped as oval-shaped quadratic surface reflector, is 62～67 ° with orifacial angle and is installed on the antenna mount.
The utility model passes through off-set feed, avoided satellite-signal is arrived stopping of reflector, because the biasing of feed, make from the electromagnetic beam of reflector arrival feed and be ellipse taper shape, correspondingly the utility model is designed to ellipse garden shape with the actinal surface correspondence of reflector, so that make this electromagnetic beam that is ellipse taper all enter feed,, appropriately mate the raising that reflector actinal surface inclination angle also helps receiving efficiency to guarantee receiving efficiency.
The ratio F/D of the focal length F of described ellipse garden shape actinal surface reflector and minor axis length D is chosen in 0.52～0.58, and experimental result shows that its reception is more satisfactory.
For easy to adjust, in angle-adjusting mechanism of the present utility model, also be provided with the angle indicating dial.
Antenna mount of the present utility model can adopt wall-hanging mounting, utilizes this wall-hanging mounting antenna can be suspended on the wall face of balcony, does not occupy and uses the space.Mounting also can be made the tripod form, constitutes table antenna.
The utility model passes through off-set feed, changing garden shape actinal surface reflector is ellipse garden shape actinal surface reflector, position relation between appropriate design reflectivity body and feed, improved the electric property of antenna, and taken into account the antenna of large and small bore, simultaneously, installation is adjusted simple and easy to do, receive the satellite TV signal except being used as, also can be used for receiving communication signal.
Below, with accompanying drawing the utility model is described further in conjunction with the embodiments.
Fig. 1 structural representation of the present utility model
Fig. 2 wall-mounted antenna mounting structural representation
Fig. 3 syllogic multimode horn of variation of flare angle schematic diagram
As shown in Figure 1, 2, formation of the present utility model comprises antenna mount, feed support 3, feed 1, the reflector of being made up of pedestal 5 and wall type bracket 94.Wherein, reflector 4 is the quadratic surface reflector that an actinal surface is ellipse garden shape, is on 62～67 ° of pedestals 5 that are installed in antenna mount with the actinal surface inclination alpha; Feed 1 can be selected a kind of broadband multimode horn of variation of flare angle feed as shown in Figure 3 for use, by a syllogic multimode horn of variation of flare angle 10, a wave mode/impedance transformer 12 and a circular waveguide 11 that is connected between horn of variation of flare angle 10 and the converter 12 that is made of three cydariform chambeies that are the ladder saltus step is constituted, supporting 3 by feed is that angle-adjusting mechanism that 46～55 ° of scopes are installed in mounting on the focus of reflector 4 comprises that the azimuth adjusts and angle of pitch adjustment with it to point to angle θ, unclamp nut 7, then can make in the antenna wraparound rotating shaft 6, following rotation realizes the adjusting of the angle of pitch; Unclamp nut 8, the plane rotary antenna can be realized azimuthal adjusting, for convenient directly perceived, also is respectively equipped with angle indicating dial 14,15.
Claims (5)
1, a kind of satellite earth antenna, comprise antenna mount, feed support, reflector and be installed in feed on the reflector focus with angle-adjusting mechanism, it is characterized in that it is 46～55 ° sensing angle that described feed has one, reflector is that an actinal surface is oval-shaped quadratic surface reflector, is installed on the antenna mount with 62～67 ° actinal surface inclination angles.
2, satellite earth antenna as claimed in claim 1, focal length F that it is characterized in that described oval quadratic surface reflector and the ratio F/D of the length D of minor axis are 0.52～0.58.
3, satellite earth antenna as claimed in claim 1, it is characterized in that described feed is the broadband multimode feed, constituted by wave mode/impedance transformer and circular waveguide that is connected between horn of variation of flare angle and the wave mode/impedance transformer that three cydariform chambeies that are the ladder saltus step constitute by a syllogic multimode horn of variation of flare angle, one.
4, satellite earth antenna as claimed in claim 1 is characterized in that described angle-adjusting mechanism also is provided with the angle indicating dial.
5, satellite earth antenna as claimed in claim 1 is characterized in that described antenna mount is wall-hanging mounting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96232595 CN2252415Y (en) | 1996-01-23 | 1996-01-23 | Satellite receiving antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96232595 CN2252415Y (en) | 1996-01-23 | 1996-01-23 | Satellite receiving antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2252415Y true CN2252415Y (en) | 1997-04-16 |
Family
ID=33909509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96232595 Expired - Fee Related CN2252415Y (en) | 1996-01-23 | 1996-01-23 | Satellite receiving antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2252415Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100409485C (en) * | 2005-09-29 | 2008-08-06 | 西安电子科技大学 | A Method for Eliminating the Dead Point of Space Moving Objects with Flexible Structure Antenna Feed |
| CN100421299C (en) * | 2005-09-29 | 2008-09-24 | 西安电子科技大学 | Accurate positioning and attitude determination technology of flexible structure antenna feed |
| CN103296377A (en) * | 2012-02-29 | 2013-09-11 | 深圳光启创新技术有限公司 | Satellite television antenna support and satellite television receiving system comprising same |
-
1996
- 1996-01-23 CN CN 96232595 patent/CN2252415Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100409485C (en) * | 2005-09-29 | 2008-08-06 | 西安电子科技大学 | A Method for Eliminating the Dead Point of Space Moving Objects with Flexible Structure Antenna Feed |
| CN100421299C (en) * | 2005-09-29 | 2008-09-24 | 西安电子科技大学 | Accurate positioning and attitude determination technology of flexible structure antenna feed |
| CN103296377A (en) * | 2012-02-29 | 2013-09-11 | 深圳光启创新技术有限公司 | Satellite television antenna support and satellite television receiving system comprising same |
| CN103296377B (en) * | 2012-02-29 | 2017-06-23 | 深圳光启高等理工研究院 | A kind of satellite tv antenna support and its satellite television receiving system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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 |