Radio frequency mixer

Details Radio frequency mixer Radio frequency mixer

1985-11-04

1987-03-31

Ng, Jin F.

Telecommunications

Receiver or analog modulated signal frequency converter

Frequency modifying or conversion

455302, 455317, 455330, H04B 126

Patent

active

046548874

ABSTRACT:
A wideband enhancement sum mixer is shown to comprise a pair of matched GaAs diodes operative with a printed circuit wherein a portion of at least the sum signal, i.e., the sum of a radio frequency signal and a local oscillator signal, is caused to be mixed with the second harmonic of the local oscillator signal to produce an intermediate frequency signal in phase with the intermediate frequency signal resulting from mixing of the radio frequency signal and the local oscillator signal.

REFERENCES:
patent: 3512091 (1970-05-01), Blixt et al.
patent: 3659206 (1972-04-01), Hallford
patent: 3943450 (1976-03-01), Otremba
patent: 4031472 (1977-06-01), Shinkawa et al.
patent: 4377005 (1983-03-01), Marchand et al.
"A New Phased-Type Image Enhanced Mixer" by L. E. Dickens and D. W. Maki, Microwave Symposium Digest, MTT-S 1975, pp. 149-151.
"Phasing Type Image Recovery Mixers" by T. M. Oxley, Microwave Symposium Digest, MTT-S 1980, pp. 270-273.
"Crystal Rectifiers" (volume is of the MIT Radiation Laboratories by M. C. Torrey and C. A. Whitmer), published by McGraw-Hill, New York, 1948.

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