US3649918A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pulsed oscillator
Assignee: Raytheon Co
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Filing: 1970-06-09
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Granted: 1972-03-14
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Expires: 1990-06-09
Abstract
Abstract Radio frequency circuits for amplifying the level of the power produced by an oscillator, preferably a solid state oscillator. The disclosed circuits include a resonant cavity in which oscillations are built up by loosely coupling such cavity to the oscillator and periodically discharging the cavities through a tightly coupled load, discharging being accomplished by actuating of a high-speed switch in the output circuit.
Inventors
- 👤 Nathan Freedman
- 👤 Harold M Hart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:38
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/80; G; G01; G01S; G01S7/00; G01S7/02; G01S7/28; G01S7/282
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
128 words
A radiofrequency pulse generator as in claim 1 wherein the means for alternately actuating the source of radiofrequency energy and closing the normally open switching means includes: a. a trigger generator for producing trigger pulses; b. a modulator, responsive to each one of such trigger pulses, for actuating the source of radiofrequency energy for a period of time at least as long as the reciprocal of the bandwidth of the resonant cavity in circuit with such source; and, c. delay means, in circuit between the trigger generator and the normally open switching means and responsive to each one of such trigger pulses, for delaying each one thereof by a period of time substantially equal to the period of time during which the source of radiofrequency signals is actuated.
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) | 1975-03-14 | 1975-09-13 | 1976-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-14 | 1979-09-13 | 1980-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-14 | 1983-09-13 | 1984-03-14 | $7700.00 | Window Closed / Lapsed |