US3080536A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Microwave phase shifter
Assignee: Raytheon Co
•
Filing: 1959-11-02
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Granted: 1963-03-05
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Expires: 1979-11-02
Abstract
No abstract record available.
Inventors
- 👤 Donald R Dewhirst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:50
CPC Classifications
H; H01; H01P; H01P1/00; H01P1/18; H01P1/19; H01Q; H01Q3/00; H01Q3/26; H01Q3/30; H01Q3/34; H01Q3/36; H01Q3/38
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
127 words
IN A MICROWAVE PHASE SHIFTER, THE COMBINATION COMPRISING A SECTION OF WAVEGUIDE HAVING A LONGITUDINAL AXIS, A CLOSED MAGNETIC CIRCUIT OF FERRITE MATERIAL SATURATING AT A SUBSTANTIALLY LOW VALUE OF MAGNETIC FIELD, SAID MAGNETIC CIRCUIT INCLUDING A PHASE SHIFTING ELEMENT DISPOSED WITHIN SAID WAVEGUIDE AND ALONG SAID AXIS, SAID MAGNETIC CIRCUIT FURTHER INCLUDING A PLURALITY OF PARALLEL AND ALIGNED BRANCHES, MEANS INCLUDED WITH SAID MAGNETIC CIRCUIT FOR ESTABLISHING MAGNETIC SATURATION OF THE ENTIRE MAGNETIC CIRCUIT IN ONE DIRECTION TO PROVIDE A MAXIMUM VALUE OF PHASE SHIFT OF PROPAGATED MICROWAVE ENERGY, AND MEANS ALSO INCLUDED WITH SAID MAGNETIC CIRCUIT FOR SELECTIVELY ESTABLISHING MAGNETIC SATURATION OF SAID BRANCHES IN AN OPPOSITE DIRECTION TO ALTER THE MAGNETIZATION OF SAID PHASE SHIFTING ELEMENT AND ESTABLISH LESSER PHASE SHIFTS OF SAID ENERGY.
Claim 2
Dependent Claim
127 words
IN A MICROWAVE PHASE SHIFTER, THE COMBINATION COMPRISING A SECTION OF WAVEGUIDE HAVING A LONGITUDINAL AXIS, A CLOSED MAGNETIC CIRCUIT OF FERRITE MATERIAL SATURATING AT A SUBSTANTIALLY LOW VALUE OF MAGNETIC FIELD, SAID MAGNETIC CIRCUIT INCLUDING A PHASE SHIFTING ELEMENT DISPOSED WITHIN SAID WAVEGUIDE AND ALONG SAID AXIS, SAID MAGNETIC CIRCUIT FURTHER INCLUDING A PLURALITY OF PARALLEL AND ALIGNED BRANCHES, MEANS INCLUDED WITH SAID MAGNETIC CIRCUIT FOR ESTABLISHING MAGNETIC SATURATION OF THE ENTIRE MAGNETIC CIRCUIT IN ONE DIRECTION TO PROVIDE A MAXIMUM VALUE OF PHASE SHIFT OF PROPAGATED MICROWAVE ENERGY, AND MEANS ALSO INCLUDED WITH SAID MAGNETIC CIRCUIT FOR SELECTIVELY ESTABLISHING MAGNETIC SATURATION OF SAID BRANCHES IN AN OPPOSITE DIRECTION TO ALTER THE MAGNETIZATION OF SAID PHASE SHIFTING ELEMENT AND ESTABLISH LESSER PHASE SHIFTS OF SAID ENERGY.
References Cited (Backward Citations)
US2850705A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-03-04 | 1966-09-03 | 1967-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-04 | 1970-09-03 | 1971-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-04 | 1974-09-03 | 1975-03-05 | $7700.00 | Window Closed / Lapsed |