Self-oscillating mixer with Darlington transistors

Details Self-oscillating mixer with Darlington transistors Self-oscillating mixer with Darlington transistors

1986-04-01

1987-08-18

LaRoche, Eugene R.

Oscillators

Solid state active element oscillator

Transistors

331 37, 331117D, 455318, H03B 500, H03B 518

Patent

active

046880054

ABSTRACT:
A self-oscillating mixer is disclosed, and includes two bipolar transistors coupled as a Darlington pair, where the base of the first transistor receives an input signal, and where the common collectors of the transistors generate an output signal; and a feedback resonator operable for coupling signals at the local-oscillator frequency from the output side of the transistors to the input side of the transistors. Such a self-oscillating mixer can provide signal conversion gain at microwave frequencies.

REFERENCES:
patent: 3374445 (1968-03-01), Gaunt, Jr.
patent: 3710275 (1973-01-01), Tanaka et al.
patent: 4219779 (1980-08-01), Shinkawa et al.
patent: 4605909 (1986-08-01), Tsironis
Y. Tajima, "GaAs FET Applications for Injection-Locked Oscillators and Self-Oscillating Mixers", IEEE Transactions on Microwave Theory & Techniques, vol. MTT-27, No. 7, Jul. 1979.
C. Tsironis, "12 GHz Receiver with a Self-Oscillating Dual Gate MESFET Mixer", ACTA Electronica, 4/23/80, pp. 325-329.
Electronics Designers Handbook, L. J. Giacoletto, Ed., McGraw-Hill 1977; pp. 22-18, 22-19.

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