US3154754A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circuit for distributing power between two mutually orthogonal polarization paths employing a rotatable absorbing strip
Assignee: US Philips Corp
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Filing: 1960-11-10
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Granted: 1964-10-27
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Expires: 1980-11-10
Abstract
No abstract record available.
Inventors
- 👤 Ronde Frans Christiaan De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:29
CPC Classifications
H; H01; H01P; H01P1/00; H01P1/16; H01P1/162; H01P1/161
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
146 words
A MICROWAVE POWER DIVIDING CIRCUIT COMPRISING A SOURCE OF ELECTROMAGNETIC WAVES OF PREDETERMINED POLARIZATION, FIRST AND SECOND MICROWAVE TRANSMISSION PATH MEANS FOR WAVES OF MUTUALLY PERPENDICULAR POLARIZATION, AND POLARIZATION ROTATING COUPLING MEANS CONNECTED TO COUPLE WAVES FROM SAID SOURCE TO SAID FIRST AND SECOND TRANSMISSION PATH MEANS, SAID COUPLING MEANS COMPRISING A TWISTABLE STRIP OF CONDUCTIVE MATERIAL EXTENDING AXIALLY OF SAID COUPLING MEANS BETWEEN SAID SOURCE AND SAID FIRST AND SECOND TRANSMISSION MEANS, MEANS FOR TWISTING SAID STRIP FOR ROTATING THE POLARIZATION OF SAID WAVES, AND A ROTATABLE ABSORBING STRIP OF MATERIAL FOR ABSORBING ELECTROMAGNETIC ENERGY, SAID ABSORBING STRIP BEING POSITIONED BETWEEN SAID TWISTABLE STRIP AND SAID FIRST AND SECOND TRANSMISSION PATH MEANS IN A LONGITUDINAL PLANE WITH RESPECT TO SAID COUPLING MEANS, SAID ABSORBING STRIP BEING IN THE SAME PLANE AS THE END OF SAID TWISTABLE STRIP TOWARD SAID FIRST AND SECOND TRANSMISSION PATH MEANS.
Claim 2
Dependent Claim
146 words
A MICROWAVE POWER DIVIDING CIRCUIT COMPRISING A SOURCE OF ELECTROMAGNETIC WAVES OF PREDETERMINED POLARIZATION, FIRST AND SECOND MICROWAVE TRANSMISSION PATH MEANS FOR WAVES OF MUTUALLY PERPENDICULAR POLARIZATION, AND POLARIZATION ROTATING COUPLING MEANS CONNECTED TO COUPLE WAVES FROM SAID SOURCE TO SAID FIRST AND SECOND TRANSMISSION PATH MEANS, SAID COUPLING MEANS COMPRISING A TWISTABLE STRIP OF CONDUCTIVE MATERIAL EXTENDING AXIALLY OF SAID COUPLING MEANS BETWEEN SAID SOURCE AND SAID FIRST AND SECOND TRANSMISSION MEANS, MEANS FOR TWISTING SAID STRIP FOR ROTATING THE POLARIZATION OF SAID WAVES, AND A ROTATABLE ABSORBING STRIP OF MATERIAL FOR ABSORBING ELECTROMAGNETIC ENERGY, SAID ABSORBING STRIP BEING POSITIONED BETWEEN SAID TWISTABLE STRIP AND SAID FIRST AND SECOND TRANSMISSION PATH MEANS IN A LONGITUDINAL PLANE WITH RESPECT TO SAID COUPLING MEANS, SAID ABSORBING STRIP BEING IN THE SAME PLANE AS THE END OF SAID TWISTABLE STRIP TOWARD SAID FIRST AND SECOND TRANSMISSION PATH MEANS.
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) | 1967-10-27 | 1968-04-27 | 1968-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-10-27 | 1972-04-27 | 1972-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-10-27 | 1976-04-27 | 1976-10-27 | $7700.00 | Window Closed / Lapsed |