Dielectric resonator microwave oscillator having enhanced negati

Details Dielectric resonator microwave oscillator having enhanced negati Dielectric resonator microwave oscillator having enhanced negati

1986-05-20

1987-11-17

Grimm, Siegfried H.

Oscillators

With distributed parameter resonator

Parallel wire type

331117D, 331117FE, H03B 518

Patent

active

047076690

ABSTRACT:
A dielectric resonator microwave oscillator in which the gate of a FET is connected to a resonance circuit. An inductor is connected to the drain of the FET, and the output is taken from the source of the FET. This dielectric resonator microwave oscillator has enhanced negative resistance and positively starts the oscillation even when there is a low reflection coefficient of the resonance circuit. Using a circuit which consists of a capacitor and inductor between the source and the output terminal, a further increasing of negative resistance at the gate of the FET is obtained.

REFERENCES:
patent: 4435688 (1984-03-01), Shinkawa et al.
Mori et al., IEEE International Microwave Symposium Digest, Washington, D.C. May 28-30, 1980, pp. 376-378.
Ishihara et al., IEEE Transactions on Microwave Theory and Techniques, vol. MTT-28, No. 8, Aug. 1980, pp. 817-824.
Tsironis et al., "Stable Monolithic GaAs FET Oscillator," Electronics Letters, vol. 18, No. 8, Apr. 15, 1982, pp. 345-347.

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