Waveguide excited enhancement and inherent rejection of interfer

Details Waveguide excited enhancement and inherent rejection of interfer Waveguide excited enhancement and inherent rejection of interfer

1989-09-29

1990-09-04

Eisenzopf, Reinhard J.

Telecommunications

Receiver or analog modulated signal frequency converter

Frequency modifying or conversion

455327, 455328, H04B 126

Patent

active

049550799

ABSTRACT:
A subharmonic mixer is shown to comprise two pairs of matched antiparallel GaAs diodes disposed on a dielectric slab and operative with microstrip circuitry. By suppressing the fundamental mixing products, mixing the radio frequency signal with the second harmonic of a local oscillator (LO) signal and using relative phase differences of the LO signals in the two pairs of diodes, undesirable effects from spurious signals are minimized.

REFERENCES:
patent: 3515993 (1970-06-01), Merriam
patent: 4457022 (1984-06-01), Pydyk
patent: 4485488 (1984-11-01), Houdart
patent: 4509208 (1985-04-01), Sogo et al.
patent: 4654887 (1987-03-01), Murphy et al.
patent: 4817201 (1989-03-01), Bonato

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