US3076149A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coupled-cavity traveling-wave parametric amplifier
Assignee: Raytheon Co
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Filing: 1959-09-15
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Granted: 1963-01-29
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Expires: 1979-09-15
Abstract
No abstract record available.
Inventors
- 👤 Knechtli Ronald Charles
- 👤 Kenneth P Grabowski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:17
CPC Classifications
H; H03; H03F; H03F7/00; H03F7/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
A MICROWAVE AMPLIFIER COMPRISING A PLURALITY OF AMPLIFIER SECTIONS COUPLED IN CASCADE, EACH SECTION INCLUDING A FIRST WAVEGUIDING STRUCTURE FOR PROPAGATING ENERGY AT A PUMP FREQUENCY, A SECOND WAVEGUIDING STRUCTURE FOR PROPAGATING ENERGY AT A SIGNAL FREQUENCY AND AT AN IDLER FREQUENCY, SAID IDLER FREQUENCY BEING EQUAL TO THE DIFFERENCE BETWEEN SAID PUMP AND SIGNAL FREQUENCIES, A DEVICE HAVING A NONLINEAR REACTANCE CHARACTERISTIC EXTENDED BETWEEN SAID FIRST AND SECOND WAVEGUIDING STRUCTURES AND COUPLED THROUGH OPENINGS THEREIN TO SAID ENER-
Claim 2
Dependent Claim
79 words
A MICROWAVE AMPLIFIER COMPRISING A PLURALITY OF AMPLIFIER SECTIONS COUPLED IN CASCADE, EACH SECTION INCLUDING A FIRST WAVEGUIDING STRUCTURE FOR PROPAGATING ENERGY AT A PUMP FREQUENCY, A SECOND WAVEGUIDING STRUCTURE FOR PROPAGATING ENERGY AT A SIGNAL FREQUENCY AND AT AN IDLER FREQUENCY, SAID IDLER FREQUENCY BEING EQUAL TO THE DIFFERENCE BETWEEN SAID PUMP AND SIGNAL FREQUENCIES, A DEVICE HAVING A NONLINEAR REACTANCE CHARACTERISTIC EXTENDED BETWEEN SAID FIRST AND SECOND WAVEGUIDING STRUCTURES AND COUPLED THROUGH OPENINGS THEREIN TO SAID ENER-
References Cited (Backward Citations)
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US2815488A
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US2978649A
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US3012203A
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US2936369A
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US2970275A
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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) | 1966-01-28 | 1966-07-30 | 1967-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-28 | 1970-07-30 | 1971-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-28 | 1974-07-30 | 1975-01-29 | $7700.00 | Window Closed / Lapsed |