Patent US3092834A successfully refreshed from Google Patents.
US3092834A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Split parabolic radar antenna utilizing means to discriminate against crosspolarized energy
Assignee: CANOGA ELECTRONICS CORP
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Filing: 1958-12-23
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Granted: 1963-06-04
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Expires: 1978-12-23
Abstract
No abstract record available.
Inventors
- 👤 Joe G Mccann
- 👤 Robert J Stegen
- 👤 Falstrom William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:09
CPC Classifications
H; H01; H01Q; H01Q15/00; H01Q15/14; H01Q15/22; H01Q25/00; H01Q25/002
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
AN AIRCRAFT RADAR ANTENNA SYSTEM COMPRISING: A GENERALLY DISH-SHAPED REFLECTOR SPLIT INTO HALVES AT ITS CENTER BY A PLANE THROUGH ITS SYMMETRICAL AXIS WITH EACH HALF BEING ROTATED IN OPPOSITE DIRECTIONS AWAY FROM THE OTHER SO THAT THE INTERSECTING OBTUSE ANGLE FORMED BY CHORDS IN A COMMON PLANE SUBTENDING THE ARCS OF EACH OF SAID REFLECTOR HALVES IN SAID COMMON PLANE IS INCREASED SO AS TO PRODUCE AN ANTENNA PATTERN HAVING A MAIN LOBE BROADER IN ITS H-PLANE THAN A PERFECT PARABOLIC REFLECTOR OF THE SAME SIZE; AND MEANS ASSOCIATED WITH SAID REFLECTOR TO DISCRIMINATE AGAINST ELECTROMAGNETIC ENERGY RECEIVED BY SAID ANTENNA SYSTEM HAVING A PREDETERMINED PLANE OF POLARIZATION PERPENDICULAR TO A PLANE THROUGH SAID SPLIT AND THROUGH THE SYMMETRICAL AXIS OF SAID REFLECTOR.
Claim 2
Dependent Claim
124 words
AN AIRCRAFT RADAR ANTENNA SYSTEM COMPRISING: A GENERALLY DISH-SHAPED REFLECTOR SPLIT INTO HALVES AT ITS CENTER BY A PLANE THROUGH ITS SYMMETRICAL AXIS WITH EACH HALF BEING ROTATED IN OPPOSITE DIRECTIONS AWAY FROM THE OTHER SO THAT THE INTERSECTING OBTUSE ANGLE FORMED BY CHORDS IN A COMMON PLANE SUBTENDING THE ARCS OF EACH OF SAID REFLECTOR HALVES IN SAID COMMON PLANE IS INCREASED SO AS TO PRODUCE AN ANTENNA PATTERN HAVING A MAIN LOBE BROADER IN ITS H-PLANE THAN A PERFECT PARABOLIC REFLECTOR OF THE SAME SIZE; AND MEANS ASSOCIATED WITH SAID REFLECTOR TO DISCRIMINATE AGAINST ELECTROMAGNETIC ENERGY RECEIVED BY SAID ANTENNA SYSTEM HAVING A PREDETERMINED PLANE OF POLARIZATION PERPENDICULAR TO A PLANE THROUGH SAID SPLIT AND THROUGH THE SYMMETRICAL AXIS OF SAID REFLECTOR.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-06-03 | 1966-12-03 | 1967-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-03 | 1970-12-03 | 1971-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-03 | 1974-12-03 | 1975-06-04 | $7700.00 | Window Closed / Lapsed |