CN103579769A - Small X-waveband circular polarization feed source - Google Patents
Small X-waveband circular polarization feed source Download PDFInfo
- Publication number
- CN103579769A CN103579769A CN201210276624.7A CN201210276624A CN103579769A CN 103579769 A CN103579769 A CN 103579769A CN 201210276624 A CN201210276624 A CN 201210276624A CN 103579769 A CN103579769 A CN 103579769A
- Authority
- CN
- China
- Prior art keywords
- circular polarization
- small
- sized
- helix
- polarization feed
- 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.)
- Pending
Links
Images
Landscapes
- Aerials With Secondary Devices (AREA)
- Waveguide Aerials (AREA)
Abstract
The invention provides a small X-waveband circular polarization feed source which comprises a cylindrical cavity with a circular horn, a spiral line, a medium support and a high-frequency coaxial socket, wherein the circular horn has a small field angle. The high-frequency coaxial socket receives electromagnetic waves transmitted by a coaxial cable. The electromagnetic waves are converted into circular polarization electromagnetic waves through the spiral line and transmitted to space through the circular horn with the small field angle. According to the small X-waveband circular polarization feed source, the problems of generation of the circular polarization electromagnetic waves of an antenna and feed of the feed source are solved and the small X-waveband circular polarization feed source has the advantages of being small in size, compact in structure and the like.
Description
Technical field
The present invention relates to a kind of antenna feed, especially a kind of anttenna feed for circular polarization for transmitting satellite X-band radio wave.
Background technology
At present, the known X-band anttenna feed for circular polarization for satellite, all uses circular polarizer mode to convert line polarization wave to circularly polarised wave.Its shortcoming: 1) size of feed circular polarizer is larger, the about 100mm of the length left and right of general X frequency range circular polarizer; 2), while needing coaxial high-frequency cable feed, also need to increase waveguide coaxial converter.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, the object of the present invention is to provide small-sized X-band circular polarization feed, by the scheme of helix excitation, realized the generation of circularly polarised wave, directly provide coaxial TNC or SMA high-frequency socket interface for feed feed simultaneously.
The present invention is that the technical scheme that its technical problem of solution adopts is to provide small-sized X-band circular polarization feed, and this device comprises: have the circular cylindrical cavity of Narrow Flare Angle circular horn, helix, medium helix support frame, high frequency coaxial socket.High frequency coaxial socket (TNC or SMA) receives the electromagnetic wave that coaxial cable transmits, and through helix, converts circular polarization electromagnetic wave to, through Narrow Flare Angle loudspeaker radiation, arrives space.
Small-sized X-band circular polarization feed provided by the present invention, directly produces circularly polarised wave with helix at circular cylindrical cavity underexcitation, has shortened the length of circular polarizer.Directly use coaxial interface feed, deducted the waveguide coaxial converter that conventional circular polarizer need to connect, obtained the beneficial effects such as volume is little, compact conformation simultaneously.After tested, the Circular polarization ratio of the small-sized X-band circular polarizer of the present invention reaches and is better than 1dB, and the length of circular polarizer is less than 50mm, has met preferably the needs of model.
The present invention can be applied to the satellite antenna transmitting/receiving system of various X-bands.
Accompanying drawing explanation
Fig. 1 is the structural representation of small-sized X-band circular polarization feed provided by the present invention;
Figure comprises circular cylindrical cavity 1, high frequency coaxial socket 2, helix 3, dielectric support 4.
Fig. 2 is typical circular polarization feed axial ratio directional diagram, represents the effect that the present invention will reach.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further detailed explanation.
Fig. 1 is the structural representation of small-sized X-band circular polarization feed provided by the present invention.The inventive system comprises: the circular cylindrical cavity 1 with Narrow Flare Angle circular horn 11, helix 3, dielectric support 4, high frequency coaxial socket 2, described high frequency coaxial socket 2 receives the electromagnetic wave that coaxial cable (not shown) transmits, described high frequency coaxial socket 2 is connected with described helix 3, described electromagnetic wave converts circular polarization electromagnetic wave to through described helix 3, through described Narrow Flare Angle loudspeaker 11, propagate into space, 4 pairs of helixes 3 of described dielectric support provide support, and described helix 3 is positioned at circular cylindrical cavity 1.
In an embodiment of the present invention, what described high frequency coaxial socket 2 adopted is coaxial TNC or SMA high-frequency socket interface, the electromagnetic wave that reception or transmitting are propagated by coaxial cable; Narrow Flare Angle circular horn 11 limits radiation direction and the scope of circularly polarised wave, in one embodiment of the present of invention, the subtended angle of described Narrow Flare Angle circular horn 11 is 3-5 °, finally makes circular polarization electromagnetic wave well to antenna reflector radiation, to complete antenna feed radiation function.
The size of small-sized each parts of X-band circular polarization feed provided by the present invention require to adopt following scope according to difference: circular cylindrical cavity internal diameter is that 27.8mm, helix screw diameter are that the lift angle of 8～10mm, helix pitch 8 ~ 9mm, helix is that 12-14 °, dielectric support diameter are 10mm, and length is 35 ~ 40mm.Through a large amount of theoretical researches, obtain when the lift angle of helix is 12-14 °, the electrical property of small-sized X-band circular polarization feed provided by the present invention is better; Experiment showed, that the Circular polarization ratio of the small-sized X-band circular polarizer of the present invention reaches when the lift angle of helix is 13 ° is better than 1dB.The diameter of the helix 3 of small-sized X-band circular polarization feed provided by the present invention is less, and operating frequency is higher; Otherwise the diameter of the helix 3 of small-sized X-band circular polarization feed provided by the present invention is larger, operating frequency is lower.
The electrical interface of this feed comprises: feed input port is the high frequency coaxial socket of standard, and concrete model is TNC or SMA.The mechanical mounting interface of feed can be determined as required.
Fig. 2 is typical circular polarization feed axial ratio directional diagram, shows the effect that the present invention will reach.Antenna feed is structural member product, by different version (such as diameter, the lift angle of adjustable screw line), reaches different requirement on electric performance, realizes specific function.As shown in Figure 2 be to reach the circular polarization feed directional diagram that dual reflector antenna needs, electromagnetic wave is from small-sized X-band circular polarization feed transmitting, after subreflector and primary reflection surface reflection, complete the electromagnetic radiation of satellite antenna, realize the electromagnetic wave Circular polarization ratio beam direction figure that between satellite and ground station, information is effectively transmitted.
The CE-3 lunar surface of take is below maked an inspection tour device X-band directional antenna as an embodiment, further describes the present invention.
This antenna requires: wave beam is ± 3.5
0gain is greater than 23dB in scope, and Circular polarization ratio is less than 4dB in ± 3.5o, and antenna axial direction size is less than 170mm, and weight is less than 1000g.
For meeting above-mentioned needs, in the present embodiment, it is that standard x wave band circular waveguide diameter Ф 27.8mm, helix screw diameter are that Ф 10mm, pitch 8.5mm, dielectric support are diameter 10mm that feed circular cylindrical cavity adopts diameter, and length 38mm, feed input port are coaxial SMA socket.
The test result of the present embodiment: Circular polarization ratio is less than 2dB in the region of regulation, antenna regulation ± gain in 3.5o wave beam is greater than 23dB, antenna axial direction size 140mm, antenna weight 830g, wherein feed weight only has 80g to meet preferably the needs of model.
It should be noted that, above embodiment has just carried out schematic explanation to spirit of the present invention and essence, and is not intended to limit the scope of the invention.
Claims (6)
1. a small-sized X-band circular polarization feed, it is characterized in that, comprise: the circular cylindrical cavity with Narrow Flare Angle circular horn, helix, dielectric support, high frequency coaxial socket, described high frequency coaxial socket receives the electromagnetic wave that coaxial cable transmits, through described helix, convert circular polarization electromagnetic wave to, through described Narrow Flare Angle loudspeaker, propagate into space, described dielectric support provides support helix.
2. small-sized X-band circular polarization feed according to claim 1, is characterized in that, the circular polarization electromagnetic wave of described circular polarization feed is produced by spiral excitation.
3. small-sized X-band circular polarization feed according to claim 1, is characterized in that, described high frequency coaxial socket is TNC or SMA high frequency coaxial socket.
4. small-sized X-band circular polarization feed according to claim 1, is characterized in that, described circular cylindrical cavity internal diameter is X frequency range standard round waveguide internal diameter.
5. small-sized X-band circular polarization feed according to claim 1, is characterized in that, described helix screw diameter is that 8～10mm, pitch are that the lift angle of 8 ~ 9mm, helix is 12-14 °.
6. small-sized X-band circular polarization feed according to claim 1, is characterized in that, circular cylindrical cavity internal diameter is 27.8mm, and dielectric support diameter is 10mm, and length is 35 ~ 40mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210276624.7A CN103579769A (en) | 2012-08-06 | 2012-08-06 | Small X-waveband circular polarization feed source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210276624.7A CN103579769A (en) | 2012-08-06 | 2012-08-06 | Small X-waveband circular polarization feed source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103579769A true CN103579769A (en) | 2014-02-12 |
Family
ID=50051043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210276624.7A Pending CN103579769A (en) | 2012-08-06 | 2012-08-06 | Small X-waveband circular polarization feed source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103579769A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106229675A (en) * | 2016-07-26 | 2016-12-14 | 上海航天测控通信研究所 | A kind of conformal element antenna of cylinder |
| CN107799882A (en) * | 2016-09-01 | 2018-03-13 | 现代自动车株式会社 | Antenna and the vehicle with the antenna |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1094665C (en) * | 1995-05-29 | 2002-11-20 | 松下电器产业株式会社 | Spiral primary emitter and inverter fitted for it |
| US20060119532A1 (en) * | 2004-12-07 | 2006-06-08 | Jae-Seung Yun | Circular polarized helical radiation element and its array antenna operable in TX/RX band |
| CN102394374A (en) * | 2011-06-29 | 2012-03-28 | 西安空间无线电技术研究所 | Double frequency feed source |
-
2012
- 2012-08-06 CN CN201210276624.7A patent/CN103579769A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1094665C (en) * | 1995-05-29 | 2002-11-20 | 松下电器产业株式会社 | Spiral primary emitter and inverter fitted for it |
| US20060119532A1 (en) * | 2004-12-07 | 2006-06-08 | Jae-Seung Yun | Circular polarized helical radiation element and its array antenna operable in TX/RX band |
| CN102394374A (en) * | 2011-06-29 | 2012-03-28 | 西安空间无线电技术研究所 | Double frequency feed source |
Non-Patent Citations (1)
| Title |
|---|
| 陈辉，秦顺友: "一种新型宽带圆极化馈源的设计", 《无线电通信技术》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106229675A (en) * | 2016-07-26 | 2016-12-14 | 上海航天测控通信研究所 | A kind of conformal element antenna of cylinder |
| CN107799882A (en) * | 2016-09-01 | 2018-03-13 | 现代自动车株式会社 | Antenna and the vehicle with the antenna |
| CN107799882B (en) * | 2016-09-01 | 2020-09-18 | 现代自动车株式会社 | Antenna and vehicle with same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201503918U (en) | Horn antenna with constant wave-beam | |
| CN101170220B (en) | Dual-frequency band and dual round polarization rear radiation spiral antenna | |
| CN104064875A (en) | Waveguide-type W wave band circularly polarized horn antenna | |
| CN110289483B (en) | Double-frequency double-circular polarization navigation measurement and control antenna feed source | |
| CN201758184U (en) | Satellite communication antenna for Ka waveband | |
| CN102377000A (en) | High-frequency conversion structure with rectangular-circular mode | |
| CN101174732B (en) | Broad-band back-reflection helical antenna | |
| CN205319280U (en) | Compact high power microwave power distributor | |
| CN205680792U (en) | A kind of pyramidal horn antenna | |
| CN101170219B (en) | Round polarization short rear radiation antenna with spiral feedback source | |
| CN103579769A (en) | Small X-waveband circular polarization feed source | |
| CN201430212Y (en) | Doublet antenna | |
| CN210350106U (en) | Dual-band feed source applied to feedback type parabolic reflector antenna | |
| CN109411870B (en) | Dual-frequency shared parabolic antenna feed source | |
| CN204857916U (en) | Four spine orthogonal mode couplers of frequency tripling | |
| CN201285802Y (en) | X frequency band dual polarization radar antenna | |
| CN103022723A (en) | Small flat ring focus parabolic antenna | |
| CN203225352U (en) | Ultra high frequency (UHF) band dual-circular polarization yagi antenna | |
| CN102394336B (en) | Branch knot loading helical antenna | |
| CN204391257U (en) | A kind of broadband circle polarized feed of back reflection type | |
| CN107069190B (en) | High-power low-profile helical antenna and antenna array formed by same | |
| CN202050054U (en) | Ultra-wideband dielectric antenna array for millimeter wave imaging security inspection device | |
| CN2847563Y (en) | Low frequency high efficiency double frequency combined feed source | |
| Ma et al. | Design and implementation of Ku-band high directionality antenna | |
| CN209418772U (en) | A kind of millimeter wave splash plate antenna |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140212 |
|
| RJ01 | Rejection of invention patent application after publication |