Patent US3242496A successfully refreshed from Google Patents.
US3242496A
Expired / Lapsed
US
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Scanning antenna system
Assignee: Unisys Corp
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Filing: 1948-08-06
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Granted: 1966-03-22
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Expires: 1968-08-06
Abstract
No abstract record available.
Inventors
- 👤 Charles A Moreno
- 👤 Square Franklin
- 👤 Berkowitz Bernard
- 👤 John E Melville
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:21
CPC Classifications
H; H01; H01Q; H01Q3/00; H01Q3/12; H01Q3/26; H01Q3/30; H01Q3/32
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
135 words
A SCANNING ANTENNA STRUCTURE COMPRISING AN INCLINED LEAKY WAVE GUIDE HAVING A LONGITUDINAL SLOT ALONG THE LENGTH THEREOF, A VERTICAL PARABOLIC CYLINDRICAL REFLECTOR POSITIONED ADJACENT SAID LEAKY WAVE GUIDE, A HOLLOW WAVE GUIDE MEMBER CONNECTED FOR FEEDING ENERGY FROM SAID LEAKY WAVE GUIDE TO THE FOCAL LINE OF SAID REFLECTOR, A DIELECTRIC MEMBER POSITIONED WITHIN SAID LEAKY WAVE GUIDE, MEANS FOR REGULARLY MOVING SAID DIELECTRIC MEMBER TO VARY THE RATE OF PROPAGATION OF ELECTROMAGNETIC ENERGY WITHIN SAID GUIDE TO THEREBY VARY THE ANGLE OF DIRECTIVITY OF ENERGY LEAVING SAID WAVE GUIDE MEMBER TO EFFECT LINE SCAN IN ONE DIRECTION, AND MEANS FOR BODILY OSCILLATING SAID REFLECTOR TOGETHER WITH SAID WAVE GUIDE TO EFFECT LINE SCAN AT RIGHT ANGLES TO SAID INITIAL LINE SCAN, THEREBY PRODUCING A RASTER SEARCH SCAN EXTENDING THROUGH A DESIRED SOLID ANGLE.
Claim 2
Dependent Claim
135 words
A SCANNING ANTENNA STRUCTURE COMPRISING AN INCLINED LEAKY WAVE GUIDE HAVING A LONGITUDINAL SLOT ALONG THE LENGTH THEREOF, A VERTICAL PARABOLIC CYLINDRICAL REFLECTOR POSITIONED ADJACENT SAID LEAKY WAVE GUIDE, A HOLLOW WAVE GUIDE MEMBER CONNECTED FOR FEEDING ENERGY FROM SAID LEAKY WAVE GUIDE TO THE FOCAL LINE OF SAID REFLECTOR, A DIELECTRIC MEMBER POSITIONED WITHIN SAID LEAKY WAVE GUIDE, MEANS FOR REGULARLY MOVING SAID DIELECTRIC MEMBER TO VARY THE RATE OF PROPAGATION OF ELECTROMAGNETIC ENERGY WITHIN SAID GUIDE TO THEREBY VARY THE ANGLE OF DIRECTIVITY OF ENERGY LEAVING SAID WAVE GUIDE MEMBER TO EFFECT LINE SCAN IN ONE DIRECTION, AND MEANS FOR BODILY OSCILLATING SAID REFLECTOR TOGETHER WITH SAID WAVE GUIDE TO EFFECT LINE SCAN AT RIGHT ANGLES TO SAID INITIAL LINE SCAN, THEREBY PRODUCING A RASTER SEARCH SCAN EXTENDING THROUGH A DESIRED SOLID ANGLE.
Claim 3
Dependent Claim
51 words
A SCANNING ANTENNA SYSTEM AS DEFINED IN CLAIM 1, WHEREIN A DIELECTRIC WEDGE LENS MEMBER IS POSITIONED IN FRONT OF SAID WAVE GUIDE AND SAID REFLECTOR, AND MOTOR MEANS FOR ROTATING SAID WEDGE LENS MEMBER TO EFFECT A CONICAL TRACKING SCAN OF THE BEAM OF ELECTROMAGNETIC ENERGY REFLECTED FROM SAID REFLECTOR.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-21 | 1969-09-20 | 1970-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-21 | 1973-09-20 | 1974-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-21 | 1977-09-20 | 1978-03-22 | $7700.00 | Window Closed / Lapsed |