Gunn oscillator with p-n junction contact for fast low power on-off control
Abstract
Abstract THE CONTROLLABLE OSCILLATOR INCLUDES A CONVENTIONAL GUNN OSCILLATOR FORMED OF A BODY OF N TYPE GALLIUM ARSENIDE WITH ORMIC CONTACTS AT BOTH ENDS. THE NOL PRODUCT FOR THE BODY IS AT LEAST TWICE THE CRITICAL VALUE FOR SUSTAINING DOMAIN NUCLEATION AND PROPAGATION. AN ABOVE-THRESHOLD VOLTAGE IS APPLIED TO THE BODY TO PRODUCE HIGH FREQUENCY OSCILLATIONS. THE OSCILLATIONS ARE CONTROLLED BY SIGNALS APPLIED TO A P TYPE CONTACT MADE TO THE BODY AT A DISTANCE D FROM THE AMOD SUCH THAT NOD IS LESS THAN THE CRITICAL VALUE FOR OSCILLATIONS. APPLICATION OF A REVERSE BIAS SIGNAL TO THIS REGION CAUSES THE OSCILLATIONS TO STOP AND A STABLE FIELD CONDITION TO BE PRODUCED WITH A HIGH FIELD NEAR THE ANODE.
Inventors
- 👤 Ralph M Esposito
- 👤 Peter S Hauge
- 👤 Conrad Lanza
Bibliographic Details
Claims Analysis
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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) | 1974-02-22 | 1974-08-24 | 1975-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-22 | 1978-08-24 | 1979-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-22 | 1982-08-24 | 1983-02-23 | $7700.00 | Window Closed / Lapsed |