US3104361A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ferrite circulator with conductive plate of uniform thickness having tapered angularapexes for broad banding
Assignee: Raytheon Co
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Filing: 1960-02-26
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Granted: 1963-09-17
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Expires: 1980-02-26
Abstract
No abstract record available.
Inventors
- 👤 Juri G Leetmaa
- 👤 George S Uebele
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 20:07
CPC Classifications
H; H01; H01P; H01P1/00; H01P1/32; H01P1/38; H01P1/383; H01P1/39
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
128 words
A MICROWAVE CIRCULATOR COMPRISING: (A) A PLURALITY OF RECTANGULAR WAVEGUIDES JOINED AT A COMMON JUNCTION AND HAVING A PAIR OF COMMON OPPOSITE BROAD WALLS AT SAID JUNCTION; (B) A CONDUCTIVE PLATE OF SUBSTANTIALLY UNIFORM THICKNESS DISPOSED WITHIN SAID JUNCTION AND HAVING A MAJOR SURFACE ADJACENT THE INSIDE SURFACE OF ONE OF SAID BROAD WALLS AND HAVING ANGULAR APEXES PROTRUDING INTO SAID WAVEGUIDES ALONG LONGITUDINAL AXES THEREOF, (C) A PLATE OF NONRECIPROCAL MICROWAVE TRANSMISSION MATERIAL OF SUBSTANTIALLY UNIFORM THICKNESS DISPOSED WITHIN SAID JUNCTION AND HAVING MAJOR SURFACES SUBSTANTIALLY PARALLEL TO SAID BROAD WALLS, SAID MATERIAL BEING SUBSTANTIALLY CENTRALLY POSITIONED BETWEEN SAID BROAD WALLS AND HAVING ANGULAR APEXES EXTENDING ALONG SAID LONGITUDINAL AXES OF SAID WAVEGUIDES; (D) AND A MAGNET ADJACENT SAID JUNCTION PROVIDING A MAGNETIC FIELD WITHIN SAID MATERIAL.
Claim 2
Dependent Claim
128 words
A MICROWAVE CIRCULATOR COMPRISING: (A) A PLURALITY OF RECTANGULAR WAVEGUIDES JOINED AT A COMMON JUNCTION AND HAVING A PAIR OF COMMON OPPOSITE BROAD WALLS AT SAID JUNCTION; (B) A CONDUCTIVE PLATE OF SUBSTANTIALLY UNIFORM THICKNESS DISPOSED WITHIN SAID JUNCTION AND HAVING A MAJOR SURFACE ADJACENT THE INSIDE SURFACE OF ONE OF SAID BROAD WALLS AND HAVING ANGULAR APEXES PROTRUDING INTO SAID WAVEGUIDES ALONG LONGITUDINAL AXES THEREOF, (C) A PLATE OF NONRECIPROCAL MICROWAVE TRANSMISSION MATERIAL OF SUBSTANTIALLY UNIFORM THICKNESS DISPOSED WITHIN SAID JUNCTION AND HAVING MAJOR SURFACES SUBSTANTIALLY PARALLEL TO SAID BROAD WALLS, SAID MATERIAL BEING SUBSTANTIALLY CENTRALLY POSITIONED BETWEEN SAID BROAD WALLS AND HAVING ANGULAR APEXES EXTENDING ALONG SAID LONGITUDINAL AXES OF SAID WAVEGUIDES; (D) AND A MAGNET ADJACENT SAID JUNCTION PROVIDING A MAGNETIC FIELD WITHIN SAID MATERIAL.
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) | 1966-09-16 | 1967-03-18 | 1967-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-16 | 1971-03-18 | 1971-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-16 | 1975-03-18 | 1975-09-17 | $7700.00 | Window Closed / Lapsed |