CN203690504U - High efficiency satellite receiving antenna - Google Patents
High efficiency satellite receiving antenna Download PDFInfo
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- CN203690504U CN203690504U CN201420017740.1U CN201420017740U CN203690504U CN 203690504 U CN203690504 U CN 203690504U CN 201420017740 U CN201420017740 U CN 201420017740U CN 203690504 U CN203690504 U CN 203690504U
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- reflection surface
- high efficiency
- primary reflection
- antenna
- waveguide
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Abstract
The utility model discloses a high efficiency satellite receiving antenna. The antenna comprises a main reflection plane, an auxiliary reflection plane, a high frequency head and a feed source assembly. The auxiliary reflection plane is disposed at the front end of the main reflection plane through a support frame fixed to one end of the feed source assembly. The high frequency head is disposed at the back end of the main reflection plane through a waveguide flange. The feed source assembly is disposed between the main reflection plane and the auxiliary reflection plane. Since shielded area of the main reflection plane is small, the main reflection plane has a large effective area for receiving satellite signals. The antenna improves a plurality of aspects of the conventional receiving antenna at the same time, so that sidelobe and edge irradiation is well prevented, antenna noise is reduced, signal transmission loss is reduced, then quality of finally received signals is improved, and reliability of the whole system is enhanced.
Description
Technical field
The utility model relates to a kind of satellite signal receiving antenna, relates in particular to a kind of high efficiency satellite earth antenna.
Background technology
Along with socioeconomic fast development and scientific and technical progress, mobile satellite communication system is more and more widely used on all kinds of automobiles, ship, aircraft and mobile base station, and satellite signal receiving antenna arises at the historic moment.At present, satellite earth antenna is mainly made up of primary reflection surface, subreflector, tuner and feed, and each part exists certain tolerance in installation process, and the focus that installs rear primary reflection surface and subreflector not necessarily overlaps.But, traditional satellite earth antenna subreflector can not regulate to the distance of primary reflection surface, subreflector is larger to blocking of primary reflection surface, middle signal disturbs larger in working order simultaneously, cause like this area of the effective receiving satellite signal of primary reflection surface relatively less, signal quality is poor, and reliability is lower; And the complex structure of whole satellite earth antenna system, difficulty is installed, cost is high.
Utility model content
It is a kind of simple in structure that the purpose of this utility model is just to provide in order to address the above problem, high efficiency satellite earth antenna.
The utility model is achieved through the following technical solutions above-mentioned purpose:
A kind of high efficiency satellite earth antenna comprises primary reflection surface, subreflector and tuner, and described subreflector is arranged on described primary reflection surface front end, and described tuner is arranged on the rear end of described primary reflection surface; It also comprises the feed assembly being arranged between described subreflector and described primary reflection surface, is arranged on the waveguide flange of described primary reflection surface rear end, and is arranged on the bracing frame of the described subreflector of support of described feed assembly one end.
Concrete, described subreflector is formed by elliptic curve rotation, for convenience of installing, is provided with spacing required trapezoidal groove on subreflector limit, in order to suppress the secondary lobe of satellite-signal, reduces and disturbs, and described primary reflection surface limit is provided with straight reflecting surface surrounding edge.
For reducing subreflector to the blocking of primary reflection surface, the diameter ratio of described subreflector and described primary reflection surface is 1:10.
Concrete, described waveguide flange one end is provided with and the convenient positive stop lug boss of installing of described primary reflection surface, described positive stop lug boss is arranged on the center of described primary reflection surface, and the described waveguide flange other end has can be installed and the screw hole of self angled attitude transducer and the screw hole of installation tuner.
For not reducing the effective area of primary reflection surface reflector satellite signal, between described waveguide flange and described primary reflection surface, adopt four symmetrical screws mode from front to back to fix, and spacing between two, described screw is less than subreflector diameter.
Concrete, described feed assembly one end is antenna feed, the other end is waveguide.
Regulate for convenience the focus of described subreflector to make it to overlap with primary reflection surface focus, described waveguide adopts engage thread to be fixed in the positive stop lug boss of described waveguide flange; For simplified structure, make the E.H face of satellite-signal equate simultaneously, reach inhibition cross polarization, reduce edge illumination, reduce the effect of antenna interference, described antenna feed adopts short cup multimode coaxial feed, and on the limit near support frame as described above one end, is provided with spacing required trapezoidal groove at it.
Concrete, the tuner waveguide of described tuner one end is closely connected with the waveguide of described feed assembly one end by described waveguide flange, for making satellite-signal better be delivered to tuner, make the standing wave of signal little, loss is low, and described tuner waveguide diameter is identical with described feed assembly waveguide diameter.
Concrete, support frame as described above be shaped as bucket shape, bracing frame top and bottom are all provided with small-sized " R " boss, impact for fear of stress on bracing frame, guarantee that subreflector overlaps all the time with the focus of primary reflection surface simultaneously, small-sized " R " boss of bracing frame upper end adopts in the fixing outmost trapezoidal groove of described subreflector of interference mode, small-sized " R " boss of bracing frame lower end adopts in the trapezoidal groove of antenna feed one end of the fixing described feed assembly of interference mode, simultaneously reserved certain space between fixing " R " boss of interference and groove.
Because antenna system is in radome, do not have foreign matter and enter feed and waveguide, for reducing the loss in satellite-signal transmitting procedure, make the phase place of signal identical simultaneously, have four symmetrical windows in support frame as described above side, adopt the good polythene material of wave penetrate capability to make as preferred bracing frame.
The beneficial effects of the utility model are:
(1) because each part is less to blocking of primary reflection surface, the effective area that makes it receiving satellite signal is larger.
(2) be fixed on primary reflection surface center because waveguide adopts engage thread, can regulate subreflector focus to make it to overlap with primary reflection surface focus, make up the error brought of production, thereby make the signal phase center that receives consistent, raise the efficiency.
(3) what antenna feed adopted is short cup multimode coaxial feed, the satellite-signal E and the H that receive is equated, thereby suppressed preferably cross polarization, has reduced edge illumination, has reduced antenna noise, and signal efficiency is reached more than 70%.
(4) in whole system, from many aspects, traditional reception antenna is improved, reduce the loss of satellite-signal in transmitting procedure, reduce and disturb, thereby improve the signal quality finally receiving, strengthened the reliability of whole system, simplified structure simultaneously, makes it to be convenient to install.
Accompanying drawing explanation
Fig. 1 be high efficiency satellite earth antenna described in the utility model axially partly cut open perspective view;
Fig. 2 is the vertical view of high efficiency satellite earth antenna described in the utility model;
Fig. 3 is the axial cutaway view of waveguide flange described in the utility model;
Fig. 4 is the axial cutaway view of feed assembly described in the utility model;
Fig. 5 be removal primary reflection surface described in the utility model axially partly cut open perspective view;
Fig. 6 is the front view of the utility model bracing frame;
Fig. 7 is the A part enlarged diagram in Fig. 6.
In figure: 1-primary reflection surface, 2-subreflector, 3-bracing frame, 4-feed assembly, 5-tuner, the straight reflecting surface surrounding edge of 6-, 7-waveguide flange, 8-screw, 9-waveguide, 10-antenna feed, 11-positive stop lug boss, 12-attitude transducer screw hole, 13-tuner screw hole, 14-window, 15-attitude transducer, 16-tuner waveguide, 17-trapezoidal groove, 18-small-sized " R " boss.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
As shown in Figure 1, high efficiency satellite earth antenna described in the utility model comprises primary reflection surface 1, subreflector 2, tuner 5, waveguide flange 7, bracing frame 3 and feed assembly 4, tuner 5 and waveguide flange 7 are arranged on the rear end of primary reflection surface 1, rotate by elliptic curve the subreflector 2 forming and be arranged on primary reflection surface front end, feed assembly 4 is arranged between primary reflection surface 1 and subreflector 2, and bracing frame 3 is fixed on feed assembly 4 one end and supports subreflector 2; Primary reflection surface 1 is 1:10 with the diameter ratio of subreflector 2.In figure, also show the straight reflecting surface surrounding edge 6 of suppressed sidelobes in primary reflection surface 1.
As shown in Figure 2, Figure 3 and Figure 4, waveguide flange 7 one end are provided with the positive stop lug boss 11 spacing with primary reflection surface 1, positive stop lug boss 11 is arranged on the center of primary reflection surface 1, and waveguide flange 7 other ends have can be installed and the attitude transducer screw hole 12 of self angled attitude transducer 15 and the tuner screw hole 13 of installation tuner 5.Between waveguide flange 7 and primary reflection surface 1, adopt four symmetrical screws 8 mode from front to back to fix, the distance of screw 8 between is between two less than subreflector 2 diameters, the waveguide 9 of feed assembly 4 one end adopts engage thread to be fixed in the positive stop lug boss 11 of waveguide flange 7, and the antenna feed 10 of the other end adopts short cup multimode coaxial feed.
As shown in Fig. 5, Fig. 6 and Fig. 7, the tuner waveguide 16 of tuner 5 one end is closely connected with the waveguide 9 of feed assembly 4 one end by waveguide flange 7, and tuner waveguide 16 is identical with the diameter of waveguide 9, subreflector 2 outermosts and antenna feed 10 are provided with spacing required trapezoidal groove 17, the bucket shape bracing frame that adopts the good polythene material of wave penetrate capability to make is all provided with small-sized " R " boss 18 in two ends Shang Xia 3, impact for fear of stress on bracing frame, guarantee that subreflector overlaps all the time with the focus of primary reflection surface simultaneously, small-sized " R " boss 18 of bracing frame upper end adopts in the fixing outmost trapezoidal groove 17 of described subreflector of interference mode, small-sized " R " boss 18 of bracing frame lower end adopts in the trapezoidal groove 17 of interference mode antenna feed, reserved certain space between trapezoidal groove 17 and small-sized " R " boss 18 simultaneously, for reducing the loss of signal transmission, bracing frame 3 sides have four symmetrical windows 14.
According to above-described embodiment, just can realize well the utility model, and execution mode of the present utility model includes but are not limited to above-described embodiment.
Claims (10)
1. a high efficiency satellite earth antenna, comprise primary reflection surface, subreflector and tuner, described subreflector is arranged on described primary reflection surface front end, described tuner is arranged on the rear end of described primary reflection surface, it is characterized in that: it also comprises the feed assembly being arranged between described subreflector and described primary reflection surface, be arranged on the waveguide flange of described primary reflection surface rear end, and be arranged on the bracing frame of the described subreflector of support of described feed assembly one end.
2. the high efficiency satellite earth antenna of one according to claim 1, it is characterized in that: described subreflector is formed by elliptic curve rotation, and on its limit, be provided with spacing required trapezoidal groove, described primary reflection surface limit is provided with the straight reflecting surface surrounding edge of suppressed sidelobes.
3. the high efficiency satellite earth antenna of one according to claim 2, is characterized in that: the diameter ratio of described subreflector and described primary reflection surface is 1:10.
4. the high efficiency satellite earth antenna of one according to claim 1, it is characterized in that: described waveguide flange one end is provided with the positive stop lug boss spacing with described primary reflection surface, described positive stop lug boss is arranged on the center of described primary reflection surface, and the described waveguide flange other end has can be installed and the screw hole of self angled attitude transducer and the screw hole of installation tuner.
5. the high efficiency satellite earth antenna of one according to claim 4, it is characterized in that: between described waveguide flange and described primary reflection surface, adopt four symmetrical screws mode from front to back to fix, and the spacing of described screw between is between two less than subreflector diameter.
6. the high efficiency satellite earth antenna of one according to claim 1, is characterized in that: described feed assembly one end is waveguide, and the other end is antenna feed.
7. the high efficiency satellite earth antenna of one according to claim 6, it is characterized in that: described waveguide adopts engage thread to be fixed in the positive stop lug boss of described waveguide flange, described antenna feed adopts short cup multimode coaxial feed, and on the limit near support frame as described above one end, is provided with spacing required trapezoidal groove at it.
8. the high efficiency satellite earth antenna of one according to claim 1, it is characterized in that: the tuner waveguide of described tuner one end is closely connected with the waveguide of described feed assembly one end by described waveguide flange, and wherein said tuner waveguide diameter is identical with described feed assembly waveguide diameter.
9. the high efficiency satellite earth antenna of one according to claim 1, it is characterized in that: support frame as described above be shaped as bucket shape, all be provided with small-sized " R " boss with lower end in the top, small-sized " R " boss of support frame as described above upper end adopts in the trapezoidal groove on the fixing described subreflector of interference mode limit, small-sized " R " boss of support frame as described above lower end adopts in the trapezoidal groove of antenna feed one end of the fixing described feed assembly of interference mode, and reserved certain space between described " R " boss and groove.
10. the high efficiency satellite earth antenna of one according to claim 9, is characterized in that: support frame as described above adopts the good polythene material of wave penetrate capability to make, and has four symmetrical windows in its side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420017740.1U CN203690504U (en) | 2014-01-13 | 2014-01-13 | High efficiency satellite receiving antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420017740.1U CN203690504U (en) | 2014-01-13 | 2014-01-13 | High efficiency satellite receiving antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203690504U true CN203690504U (en) | 2014-07-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420017740.1U Expired - Fee Related CN203690504U (en) | 2014-01-13 | 2014-01-13 | High efficiency satellite receiving antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203690504U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106711620A (en) * | 2016-12-22 | 2017-05-24 | 中信海洋（舟山）卫星通信有限公司 | Double-reflecting-surface satellite antenna with missing plot |
| CN110994175A (en) * | 2020-01-02 | 2020-04-10 | 广州功首卫星科技有限公司 | Household satellite signal receiving equipment capable of utilizing solar energy |
| CN115621738A (en) * | 2022-12-19 | 2023-01-17 | 西安电子科技大学 | Microwave antenna feed structure and microwave antenna system |
-
2014
- 2014-01-13 CN CN201420017740.1U patent/CN203690504U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106711620A (en) * | 2016-12-22 | 2017-05-24 | 中信海洋（舟山）卫星通信有限公司 | Double-reflecting-surface satellite antenna with missing plot |
| CN106711620B (en) * | 2016-12-22 | 2023-05-02 | 中信海洋（舟山）卫星通信有限公司 | Double-reflecting-surface satellite antenna with lacking area |
| CN110994175A (en) * | 2020-01-02 | 2020-04-10 | 广州功首卫星科技有限公司 | Household satellite signal receiving equipment capable of utilizing solar energy |
| CN110994175B (en) * | 2020-01-02 | 2020-08-11 | 诸暨市智盈智能技术服务部 | Household satellite signal receiving equipment capable of utilizing solar energy |
| CN115621738A (en) * | 2022-12-19 | 2023-01-17 | 西安电子科技大学 | Microwave antenna feed structure and microwave antenna system |
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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: 20140702 Termination date: 20150113 |
|
| EXPY | Termination of patent right or utility model |