CN106342362B - Air-to-air missile radar seeker broadband parabolic antenna feed source - Google Patents
Air-to-air missile radar seeker broadband parabolic antenna feed sourceInfo
- Publication number
- CN106342362B CN106342362B CN200910122480.8A CN200910122480A CN106342362B CN 106342362 B CN106342362 B CN 106342362B CN 200910122480 A CN200910122480 A CN 200910122480A CN 106342362 B CN106342362 B CN 106342362B
- Authority
- CN
- China
- Prior art keywords
- ridged
- ridge
- ridged horn
- actinal surface
- air
- 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 invention belongs to Radar Technology, relate to the improvement to air-to-air missile radar seeker broadband parabolic antenna feed source. It comprises a feed being made up of four identical double-ridged horn antennas of structure, it is characterized in that, the actinal surface broadside size of each pair of ridged horn is 0.3～0.4 times of two ridged horn maximum functional wavelength; Two ridges of each pair of ridged horn extend loudspeaker actinal surface, stretch out height h=2～5mm, the ridge curvilinear equation of each pair of ridged horn is the actinal surface size that the present invention has dwindled each pair of ridged horn greatly, has reduced loudspeaker actinal surface and has blocked, improve antenna efficiency, be convenient to use on miniature missile.
Description
Technical field
The invention belongs to Radar Technology, relate to air-to-air missile radar seeker broadband parabola antennaThe improvement of feed.
Background technology
The broadband parabolic antenna feed source being formed by four ridged horns of routine, two in each ridged hornThe top edge of ridge and loudspeaker actinal surface are coplanar. Its shortcoming is: the size of loudspeaker actinal surface is large, due to loudspeakerThe broadside size of actinal surface must be greater than the half of maximum functional wavelength, so the size of loudspeaker actinal surface veryDifficulty is dwindled, and electromagnetic wave is caused more greatly and blocked, and reduces antenna efficiency. And due to volume and weightBe unfavorable for using on miniature missile greatly.
Summary of the invention
The object of the invention is: propose one and can reduce loudspeaker actinal surface and block, improve antenna efficiency, justIn the air-to-air missile radar seeker broadband parabolic antenna feed source using on miniature missile.
Technical scheme of the present invention is: air-to-air missile radar seeker broadband parabolic antenna feed source,Comprise a feed being formed by four identical double-ridged horn antennas of structure, it is characterized in that,
(1) the actinal surface broadside size of each pair of ridged horn is two ridged horn maximum functional wavelength0.3～0.4 times;
(2) two ridges of each pair of ridged horn extend loudspeaker actinal surface, stretch out height h=2～5mm, twoLateral surface between the top edge of ridge and horn mouth face width limit is plane;
(3) the ridge curvilinear equation of each pair of ridged horn is
In formula,
k1Index coefficient, k1＝0.01～0.2；
k2Linear term coefficient, k2＝-0.2～0.2；
B is exponential term coefficient, the half that b equals narrow limit in ridge waveguide and the interior ridge height of ridge waveguidePoor;
The coordinate system at ridge curvilinear equation place is as follows: the origin of coordinates 0 is positioned on the axis of two ridged horns,The origin of coordinates 0 is greater than 0.5 times of two ridged horn maximum functional wavelength to the distance H of loudspeaker actinal surface;The axis of two ridged horns is Z axis, and positive direction upwards; In the broadside centre section of two ridged horns,Cross the origin of coordinates 0 and be Y-axis perpendicular to the straight line of Z axis, positive direction to the right.
Advantage of the present invention is: greatly dwindled the actinal surface size of each pair of ridged horn, reduced loudspeakerActinal surface blocks, and has improved antenna efficiency, is convenient to use on miniature missile. Evidence, thisInvention loudspeaker actinal surface than existing horn mouth reduction of area little more than 50%, antenna efficiency has improved 10%Above.
Brief description of the drawings
Fig. 1 is structural representation of the present invention.
Detailed description of the invention
Below the present invention is described in further details. Air-to-air missile radar seeker broadband parabolaAntenna feed, comprises a feed being made up of four identical double-ridged horn antennas of structure, its spyLevy and be:
(1) the actinal surface broadside size of each pair of ridged horn is two ridged horn maximum functional wavelength0.3～0.4 times;
Conventional ridged horn actinal surface broadside size must be greater than 0.5 times of maximum functional wavelength, otherwise itsThe ripple of interior transmission can produce cut off phenomenon.
(2) two ridges of each pair of ridged horn extend loudspeaker actinal surface, stretch out height h=2～5mm, twoLateral surface between the top edge of ridge and horn mouth face width limit is plane;
Ridge does not terminate in the problem that loudspeaker actinal surface place has effectively avoided actinal surface place ripple to end, and extends toOutside actinal surface, several millimeters make the impedance in ridged horn be smoothly transitted into space wave impedance.
(3) the ridge curvilinear equation of each pair of ridged horn is
In formula,
k1Index coefficient, k1＝0.01～0.2；
k2Linear term coefficient, k2＝-0.1～0.1；
B is exponential term coefficient, the half that b equals narrow limit in ridge waveguide and the interior ridge height of ridge waveguidePoor;
The coordinate system at ridge curvilinear equation place is as follows: the origin of coordinates 0 is positioned on the axis of two ridged horns,The origin of coordinates 0 is greater than 0.5 times of two ridged horn maximum functional wavelength to the distance H of loudspeaker actinal surface;The axis of two ridged horns is Z axis, and positive direction upwards; In the broadside centre section of two ridged horns,Cross the origin of coordinates 0 and be Y-axis perpendicular to the straight line of Z axis, positive direction to the right.
Beyond ridge curvilinear equation, the height of loudspeaker height and ridge is also the main ginseng that affects antenna performanceCount, loudspeaker height can be controlled to 1/2nd left and right of maximum functional wavelength by suitable adjustment.
Operation principle of the present invention is:
Conventional ridged horn is to approach loudspeaker actinal surface place impedance variations very violent, dwindles actinal surface size toOne half of large operation wavelength, is less than maximum functional wavelength in the position cutoff wavelength that approaches actinal surface,Ripple produces cut-off.
The present invention dwindles loudspeaker actinal surface size to 30% of maximum functional wavelength, by suitable adjustment ridgeK in curvilinear equation1And k2Value, the maximum (horn length) of z and the length of ridge (extend to loudspeakerActinal surface is outer), make to be greater than maximum functional wavelength in the cutoff wavelength at loudspeaker actinal surface place, effectively slow downImpedance variations.
Embodiment 1
Working frequency range is 8-12GHz
k1＝0.111
k2＝-0.035
The long 17.5mm of loudspeaker
The high 21mm of ridge
Long limit 11.12mm in ridge waveguide, the high 1.6mm of narrow limit 4mm ridge
Implementation result: actinal surface dwindles approximately 55%, antenna efficiency improves approximately 11.2%.
Embodiment 2
Working frequency range is 9-13GHz
k1＝0.1
k2＝-0.03
The long 21mm of loudspeaker
The high 23.5mm of ridge
Long limit 12mm in ridge waveguide, the high 1.5mm of narrow limit 4mm ridge
Implementation result: actinal surface dwindles approximately 53%, antenna efficiency improves approximately 11.8%.
Embodiment 3
Working frequency range is 8-12GHz
k1＝0.095
k2＝-0.04
The long 20mm of loudspeaker
The high 23.5mm of ridge
Long limit 11.12mm in ridge waveguide, the high 1.5mm of narrow limit 4mm ridge
Implementation result: actinal surface dwindles approximately 55%, antenna efficiency improves approximately 11.1%.
Claims (1)
1. air-to-air missile radar seeker broadband parabolic antenna feed source, comprises that one by four structuresThe feed of identical double-ridged horn antenna composition, is characterized in that,
(1) the actinal surface broadside size of each pair of ridged horn is two ridged horn maximum functional wavelength0.3～0.4 times;
(2) two ridges of each pair of ridged horn extend loudspeaker actinal surface, stretch out height h=2～5mm, twoLateral surface between the top edge of ridge and horn mouth face width limit is plane;
(3) the ridge curvilinear equation of each pair of ridged horn is
In formula,
k1Index coefficient, k1＝0.01～0.2；
k2Linear term coefficient, k2＝-0.2～0.2；
B is exponential term coefficient, the half that b equals narrow limit in ridge waveguide and the interior ridge height of ridge waveguidePoor;
The coordinate system at ridge curvilinear equation place is as follows: origin of coordinates O is positioned on the axis of two ridged horns,Origin of coordinates O is greater than 0.5 times of two ridged horn maximum functional wavelength to the distance H of loudspeaker actinal surface;The axis of two ridged horns is Z axis, and positive direction upwards; In the broadside centre section of two ridged horns,Cross origin of coordinates O and be Y-axis perpendicular to the straight line of Z axis, positive direction to the right.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910122480.8A CN106342362B (en) | 2009-09-10 | 2009-09-10 | Air-to-air missile radar seeker broadband parabolic antenna feed source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910122480.8A CN106342362B (en) | 2009-09-10 | 2009-09-10 | Air-to-air missile radar seeker broadband parabolic antenna feed source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106342362B true CN106342362B (en) | 2013-04-17 |
Family
ID=58358158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910122480.8A Expired - Fee Related CN106342362B (en) | 2009-09-10 | 2009-09-10 | Air-to-air missile radar seeker broadband parabolic antenna feed source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106342362B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111555033A (en) * | 2020-04-30 | 2020-08-18 | 北京中测国宇科技有限公司 | Broadband ridge piece outward-detection four-ridge circular horn feed source antenna |
| CN111610378A (en) * | 2020-05-27 | 2020-09-01 | 赵鲁豫 | Millimeter wave dual-polarization near-field measuring probe |
-
2009
- 2009-09-10 CN CN200910122480.8A patent/CN106342362B/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111555033A (en) * | 2020-04-30 | 2020-08-18 | 北京中测国宇科技有限公司 | Broadband ridge piece outward-detection four-ridge circular horn feed source antenna |
| CN111610378A (en) * | 2020-05-27 | 2020-09-01 | 赵鲁豫 | Millimeter wave dual-polarization near-field measuring probe |
| CN111610378B (en) * | 2020-05-27 | 2023-05-16 | 赵鲁豫 | Millimeter wave dual-polarized near field measurement probe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR03 | Grant of secret patent right | ||
| GRSP | Grant of secret patent right | ||
| DC01 | Secret patent status has been lifted | ||
| DCSP | Declassification of secret patent | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130417 Termination date: 20180910 |