Oscillators – Solid state active element oscillator – Transistors
Patent
1987-06-05
1988-07-05
Grimm, Siegfried H.
Oscillators
Solid state active element oscillator
Transistors
331117R, 331117FE, 331117D, 331173, 331182, 332 31T, H03B 512, H03B 518, H03C 114
Patent
active
047557729
ABSTRACT:
A switchable microwave oscillator is disclosed that includes a quenching circuit for switching, attenuating, modulating, or otherwise controlling the output amplitude of frequency-stabilized, transistor-based, microwave-frequency oscillators. The quenching circuit includes a diode that is coupled to the transistor at the same port that reactive feedback is present, and includes diode biasing means for selectively applying a bias voltage to the diode. The quenching circuit selectively diverts some of the current flowing through the transistor of the oscillator to control the output thereof.
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James K. Plourde, Chung-Li Ren, "Application of Dielectric Resonators in Microwave Components", IEEE Trans. on Microwave Theory and Techniques, vol. MTT-29, No. 8, Aug. 1981, pp. 754-770.
Avantek, Inc.
Everett Stephen M.
Grimm Siegfried H.
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