US3114119A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hybrid-junction cut-off waveguide filter
Assignee: New York University
•
Filing: 1959-06-16
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Granted: 1963-12-10
•
Expires: 1979-06-16
Abstract
No abstract record available.
Inventors
- 👤 Eugene N Torgow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:55
CPC Classifications
H; H01; H01P; H01P1/00; H01P1/20; H01P1/219; H01P1/213
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
A BAND-PASS WAVEGUIDE FILTER COMPRISING A HYBRID JUNCTION HAVING AN INPUT PORT, AN OUTPUT PORT, AND TWO CONJUGATE PORTS RECEIVING ENERGY EQUALLY FROM SAID INPUT PORT, A CUT-OFF WAVEGUIDE SECTION CONNECTED TO SUPPLY ENERGY TO SAID INPUT PORT AND HAVING A CUT-OFF FREQUENCY AT THE LOWER END OF THE BAND TO BE PASSED, IDENTICAL CUT-OFF WAVEGUIDE SECTIONS CONNECTED TO RECEIVE ENERGY FROM SAID CONJUGATE PORTS AND HAVING A CUT-OFF FREQUENCY AT THE UPPER END OF THE BAND TO BE PASSED, MATCHED TERMINATIONS FOR SAID IDENTICAL CUT-OFF SECTIONS FOR PREVENTING REFLECTION OF WAVE ENERGY ABOVE THE CUTOFF FREQUENCY OF SAID IDENTICAL SECTIONS, SAID HYBRID JUNCTION INCLUDING MEANS FOR EFFECTING TRANSMISSION OF WAVE ENERGY REFLECTED FROM SAID IDENTICAL CUT-OFF SECTIONS IN LIKE PHASES TO SAID OUTPUT PORT.
Claim 2
Dependent Claim
125 words
A BAND-PASS WAVEGUIDE FILTER COMPRISING A HYBRID JUNCTION HAVING AN INPUT PORT, AN OUTPUT PORT, AND TWO CONJUGATE PORTS RECEIVING ENERGY EQUALLY FROM SAID INPUT PORT, A CUT-OFF WAVEGUIDE SECTION CONNECTED TO SUPPLY ENERGY TO SAID INPUT PORT AND HAVING A CUT-OFF FREQUENCY AT THE LOWER END OF THE BAND TO BE PASSED, IDENTICAL CUT-OFF WAVEGUIDE SECTIONS CONNECTED TO RECEIVE ENERGY FROM SAID CONJUGATE PORTS AND HAVING A CUT-OFF FREQUENCY AT THE UPPER END OF THE BAND TO BE PASSED, MATCHED TERMINATIONS FOR SAID IDENTICAL CUT-OFF SECTIONS FOR PREVENTING REFLECTION OF WAVE ENERGY ABOVE THE CUTOFF FREQUENCY OF SAID IDENTICAL SECTIONS, SAID HYBRID JUNCTION INCLUDING MEANS FOR EFFECTING TRANSMISSION OF WAVE ENERGY REFLECTED FROM SAID IDENTICAL CUT-OFF SECTIONS IN LIKE PHASES TO SAID OUTPUT PORT.
References Cited (Backward Citations)
US2632808A
Cited
US2531447A
Cited
US2702371A
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US2591329A
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US2649576A
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DE950304C
Cited
US2804599A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-12-09 | 1967-06-10 | 1967-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-09 | 1971-06-10 | 1971-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-09 | 1975-06-10 | 1975-12-10 | $7700.00 | Window Closed / Lapsed |