CN201562756U - Satellite signal receiving antenna - Google Patents
Satellite signal receiving antenna Download PDFInfo
- Publication number
- CN201562756U CN201562756U CN200920319013XU CN200920319013U CN201562756U CN 201562756 U CN201562756 U CN 201562756U CN 200920319013X U CN200920319013X U CN 200920319013XU CN 200920319013 U CN200920319013 U CN 200920319013U CN 201562756 U CN201562756 U CN 201562756U
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- Prior art keywords
- receiving antenna
- signal receiving
- reflection plate
- satellite signal
- satellite
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Abstract
The utility model provides a satellite signal receiving antenna which belongs to the technical field of microwave communication. The satellite signal receiving antenna settles the technical problems of inferior received signal, large effect from the outer environment, troublesome installation, etc. in the prior-art satellite signal receiving antenna. The satellite signal receiving antenna comprises a main reflection plate, an auxiliary reflection plate and a high frequency head. The auxiliary reflection plate is fixed to the front end of the main reflection plate. The high frequency head is fixed to the back end of the main reflection plate. A waveguide tube is provided between the auxiliary reflection plate and the high frequency head. One end of the waveguide tube is fixed to the main reflection plate and is communicated with the high frequency head, and the other end is connected with the auxiliary reflection plate. The satellite signal receiving antenna has the advantages of more stable received satellite signal, more received signals, more convenient installation, etc.
Description
Technical field
The utility model belongs to the short-wave communication tedhnology field, relates to a kind of satellite signal receiving antenna, particularly a kind of satellite signal receiving antenna that is installed on the mobile vehicle.
Background technology
At present,, a boat-carrying satellite TV receiver aboard ship is installed just can have been watched TV programme, thereby rewritten the marine history that can't teleview along with popularizing of satellite television.
Satellite signal receiving antenna is the important component part of satellite television receiving system, at present, existing satellite earth antenna general (as shown in Figure 2) comprises principal reflection plate, secondary reflecting plate, feed and tuner, described principal reflection plate has the primary reflection surface that is parabola state, and described secondary reflecting plate has the subreflector that is the hyperbolic wire.Secondary reflecting plate is to be fixed on principal reflection plate the place ahead by three support bars, and support bar is to prop from the edge of principal reflection plate.Penetrate the signal that comes from satellite and pass support bar, the primary event through primary reflection surface is focused the phase center in feed again behind the subreflector secondary reflection, with superimposed, and then enter on the tuner.
Because the support bar of principal reflection plate front is to the loss of signal and the interference of other signal, signal noise is bigger.Secondary reflecting plate is exposed, and is blocked by other object easily, may cause signal quality to reduce, thereby influence the TV normal play; In addition, the satellite signal receiving antenna of such structure is installed also cumbersome.
Summary of the invention
The purpose of this utility model is to have the problems referred to above at existing technology, has proposed a kind of simple in structure, easy for installation, satellite signal receiving antenna that receiving satellite signal is more stable.
The purpose of this utility model can realize by following technical proposal: a kind of satellite signal receiving antenna, comprise principal reflection plate, secondary reflecting plate and tuner, described secondary reflecting plate is fixed on the front end of principal reflection plate, described tuner is fixed on the rear end of principal reflection plate, it is characterized in that, be provided with waveguide between described secondary reflecting plate and the tuner, described waveguide one end is fixed on the principal reflection plate, and be connected with tuner, the other end links to each other with above-mentioned secondary reflecting plate.
In above-mentioned satellite signal receiving antenna, described secondary reflecting plate has and is parabolic subreflector.Adopt the reflecting surface of such shape that satellite-signal can better be launched away.
In above-mentioned satellite signal receiving antenna, described waveguide ends also is fixed with dust cover, and above-mentioned secondary reflecting plate is fixed in this dust cover.
Penetrate the signal that comes from satellite and be mapped on the principal reflection plate, through the reflection of principal reflection plate, signal penetrates dust cover, and the subreflector secondary reflection by secondary reflecting plate enters in the waveguide again, and then enters into tuner.Because through the signal behind the secondary reflection is to be in the airtight space of waveguide and dust cover composition, therefore satellite-signal is not easy by external interference, therefore, tuner can obtain more stable satellite-signal, and the television image that is come by this signal transition also can be more clear.
In above-mentioned satellite signal receiving antenna, described dust cover adopts the plastics that allow satellite-signal penetrate easily to make.
In above-mentioned satellite signal receiving antenna, described dust cover adopts teflon material to make.The dust cover that adopts teflon material to make not only makes satellite-signal pass easily, and more convenient when installing with waveguide.
In above-mentioned satellite signal receiving antenna, described waveguide is by being bolted on the principal reflection plate.
Compared with prior art, this satellite signal receiving antenna has the following advantages:
1, the secondary reflecting plate of this satellite signal receiving antenna is installed in the front end of waveguide, need not propped from the principal reflection panel edges by support bar, and satellite-signal need not passed by support bar like this, thereby has reduced the loss of satellite-signal.
2, the secondary reflecting plate of this satellite signal receiving antenna is in the enclosure space of waveguide and dust cover composition, can not blocked by other object, and satellite-signal is not easy by external interference, makes the satellite-signal that receives more stable.
3, the satellite-signal behind the secondary baffle reflection of this satellite signal receiving antenna directly enters in the waveguide, and signal is played a protective role.
4, the dust cover of this satellite signal receiving antenna adopts teflon material to make, because teflon has lower coefficient of friction, self lubricity is very good, and therefore, ten minutes is simple, convenient when installing.
Description of drawings
Fig. 1 is the structural representation of this satellite signal receiving antenna.
Fig. 2 is the structural representation of satellite signal receiving antenna of the prior art.
Among the figure, 1, the principal reflection plate; 2, secondary reflecting plate; 2a, subreflector; 3, tuner; 4, waveguide; 5, dust cover; 6, support bar; 7, feed.
Embodiment
Below be specific embodiment of the utility model and in conjunction with the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiment.
As shown in Figure 1, this satellite signal receiving antenna, comprise principal reflection plate 1, secondary reflecting plate 2 and tuner 3, described secondary reflecting plate 2 is fixed on the front end of principal reflection plate 1, and described tuner 3 is fixed on the rear end of principal reflection plate 1, it is characterized in that, be provided with waveguide 4 between described secondary reflecting plate 2 and the tuner 3, described waveguide 4 one ends are by being bolted on the principal reflection plate 1, and are connected with tuner 3, and the other end links to each other with above-mentioned secondary reflecting plate 2.
In above-mentioned satellite signal receiving antenna, described secondary reflecting plate 2 has and is parabolic subreflector 2a.Adopt the reflecting surface of such shape that satellite-signal can better be launched away.
Also be fixed with dust cover 5 in waveguide 4 ends, above-mentioned secondary reflecting plate 2 is fixed in this dust cover 5.Described dust cover 5 adopts the plastics that allow satellite-signal penetrate easily to make.Particularly, dust cover 5 adopts teflon material to make.The dust cover 5 that adopts teflon material to make not only makes satellite-signal pass easily, and more convenient when installing with waveguide 4.
The operation principle of this satellite signal receiving antenna is such: penetrate the signal that comes from satellite and be mapped on the principal reflection plate 1, through 1 reflection of principal reflection plate, signal penetrates dust cover 5, reflecting surface 2a secondary reflection by secondary reflecting plate 2 enters in the waveguide 4 again, and then enter into tuner 3, satellite-signal transfers intermediate-freuqncy signal to through filtering, the frequency reducing of tuner 3, and intermediate-freuqncy signal is connected to TV by decoder again and gets on, and is transformed into television image.
Because the secondary reflecting plate 2 of this satellite signal receiving antenna is installed in the front end of waveguide 4, need not propped from principal reflection plate 1 edge by support bar 6, satellite-signal need not passed by support bar 6 like this, thereby has reduced the loss of satellite-signal; Secondary reflecting plate 2 is in the enclosure space of waveguide 4 and dust cover 5 compositions, can not blocked by other object, and satellite-signal is not easy by external interference, makes the satellite-signal that receives more stable; Satellite-signal after secondary reflecting plate 2 reflections directly enters in the waveguide 4, and signal is played a protective role.Dust cover 5 adopts teflon material to make, because teflon has lower coefficient of friction, self lubricity is very good, and therefore, ten minutes is simple, convenient when installing.
Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Although this paper has used 1, the principal reflection plate morely; 2, secondary reflecting plate; 2a, subreflector; 3, tuner; 4, waveguide; 5, dust cover; 6, support bar; 7, term such as feed, but do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain essence of the present utility model more easily; They are construed to any additional restriction all is contrary with the utility model spirit.
Claims (6)
1. satellite signal receiving antenna, comprise principal reflection plate (1), secondary reflecting plate (2) and tuner (3), described secondary reflecting plate (2) is fixed on the front end of principal reflection plate (1), described tuner (3) is fixed on the rear end of principal reflection plate (1), it is characterized in that, be provided with waveguide (4) between described secondary reflecting plate (2) and the tuner (3), described waveguide (4) one ends are fixed on the principal reflection plate (1), and be connected with tuner (3), the other end links to each other with above-mentioned secondary reflecting plate (2).
2. satellite signal receiving antenna according to claim 1 is characterized in that, described secondary reflecting plate (2) has and is parabolic subreflector (2a).
3. satellite signal receiving antenna according to claim 1 and 2 is characterized in that, described waveguide (4) end also is fixed with dust cover (5), and above-mentioned secondary reflecting plate (2) is fixed in this dust cover (5).
4. satellite signal receiving antenna according to claim 3 is characterized in that, described dust cover (5) adopts the plastics that allow satellite-signal penetrate easily to make.
5. satellite signal receiving antenna according to claim 3 is characterized in that, described dust cover (5) adopts teflon material to make.
6. satellite signal receiving antenna according to claim 1 and 2 is characterized in that, described waveguide (4) is by being bolted on the principal reflection plate (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920319013XU CN201562756U (en) | 2009-12-29 | 2009-12-29 | Satellite signal receiving antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920319013XU CN201562756U (en) | 2009-12-29 | 2009-12-29 | Satellite signal receiving antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201562756U true CN201562756U (en) | 2010-08-25 |
Family
ID=42627909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920319013XU Expired - Lifetime CN201562756U (en) | 2009-12-29 | 2009-12-29 | Satellite signal receiving antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201562756U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103022723A (en) * | 2012-12-12 | 2013-04-03 | 上海航天测控通信研究所 | Small flat ring focus parabolic antenna |
| WO2014187067A1 (en) * | 2013-05-21 | 2014-11-27 | 深圳市华信天线技术有限公司 | Satellite antenna device |
| CN105759315A (en) * | 2016-04-26 | 2016-07-13 | 深圳市无牙太赫兹科技有限公司 | Scanning mechanism and safety inspection instrument possessing the scanning mechanism |
| CN106129639A (en) * | 2016-08-09 | 2016-11-16 | 苏州市吴通天线有限公司 | Small capacity double polarization high isolation foldable antenna |
-
2009
- 2009-12-29 CN CN200920319013XU patent/CN201562756U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103022723A (en) * | 2012-12-12 | 2013-04-03 | 上海航天测控通信研究所 | Small flat ring focus parabolic antenna |
| CN103022723B (en) * | 2012-12-12 | 2015-02-04 | 上海航天测控通信研究所 | Small flat ring focus parabolic antenna |
| WO2014187067A1 (en) * | 2013-05-21 | 2014-11-27 | 深圳市华信天线技术有限公司 | Satellite antenna device |
| CN105759315A (en) * | 2016-04-26 | 2016-07-13 | 深圳市无牙太赫兹科技有限公司 | Scanning mechanism and safety inspection instrument possessing the scanning mechanism |
| US10795015B2 (en) | 2016-04-26 | 2020-10-06 | Shenzhen Cct Thz Technology Co., Ltd. | Scanning apparatus and security-inspection device with the same |
| CN106129639A (en) * | 2016-08-09 | 2016-11-16 | 苏州市吴通天线有限公司 | Small capacity double polarization high isolation foldable antenna |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100825 |