FET oscillator having controllable reactance element-controlled

Details FET oscillator having controllable reactance element-controlled FET oscillator having controllable reactance element-controlled

1981-03-09

1987-06-02

Grimm, Siegfried H.

Oscillators

Solid state active element oscillator

Transistors

331117D, 331177V, H03B 518

Patent

active

046707220

ABSTRACT:
A broadband high frequency power oscillator employing a GaAs FET transistor and a two-port coupling network whose input port is connected across the drain and source terminals of the GaAs FET. The coupling network consists of 3 branches in T- or .pi.-configuration. One branch includes a matching network and the load. The other two branches are purely reactive and each includes at least one independently tunable reactance element, such as a varactor.

REFERENCES:
patent: 3281699 (1966-10-01), Harwood
patent: 3370254 (1968-02-01), Keller
patent: 3421111 (1969-01-01), Boyajian
patent: 3582823 (1971-06-01), Pasos
patent: 4010428 (1977-03-01), Sunkler
patent: 4135168 (1979-01-01), Wade
patent: 4149127 (1979-04-01), Murakami et al.
Rauscher, "Broadband Varactor-Tuned GaAs F.E.T. Oscillator", Electronics ters, vol. 16, No. 14, Jul. 3, 1980, pp. 534, 535 (331-177V).
Farell, "Designing FET Oscillators", EEE, Jan. 1967, pp. 86-90, 331-117 FE.

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