Self-oscillating mixer circuit

Details Self-oscillating mixer circuit Self-oscillating mixer circuit

1978-04-17

1980-08-26

Martin, John C.

Telecommunications

Receiver or analog modulated signal frequency converter

Frequency modifying or conversion

455325, 455333, H04B 126

Patent

active

042197791

ABSTRACT:
A self-oscillating mixer circuit to operate mainly at SHF band comprises a single-gate FET and a micro strip line. The gate or source terminal of the FET is connected to a radio frequency signal input line. A feedback path is provided between the drain terminal and the gate or source terminal. An intermediate frequency output line is connected to the drain electrode of the FET. A dielectric resonator is coupled to the radio frequency signal input line to improve the stability of an oscillator frequency and to suppress leakage of a local oscillator signal.

REFERENCES:
patent: 3127562 (1962-03-01), Harvey et al.
patent: 3207990 (1965-09-01), Nestlerode
patent: 3348155 (1967-10-01), Von Recklinghausen
patent: 3510781 (1970-05-01), Wollesen
patent: 4031472 (1977-06-01), Shinkawa et al.
patent: 4056787 (1977-11-01), Saitoh et al.
"FET Mixers Offer Gain", Microwave News, Apr. 1975, p. 12.
International Microwave Symposium Digest 1977, IEEE MTT-S, pp. 270-272.
"GaAs FET Osc. Which is Stabilized with a Dielectric Resonator", Lecture Paper at 1976-Year all-Japan Conference of Institute of Electronics and Communications Engineers of Japan.

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