Integrated circuit planar high frequency mixer

Details Integrated circuit planar high frequency mixer Integrated circuit planar high frequency mixer

1979-10-29

1981-06-30

Griffin, Robert L.

Telecommunications

Receiver or analog modulated signal frequency converter

Frequency modifying or conversion

332 43B, 333238, 333246, 329161, H04B 126, H03C 158

Patent

active

042766559

ABSTRACT:
The invention is a cross-bar signal mixer suitable for low-cost high-yield mass production. The mixer configuration consists of a balanced planar taper section supported upon a dielectric substrate placed across the carrier and local oscillator wave guides perpendicular to the direction of electromagnetic energy propagation. Beam lead mixer diodes are connected across the feed-point of the taper section. The local oscillator energy is injected in transverse electric mode relation at the junction of the two mixer diodes, thereby effectively decoupling the local oscillator from the carrier signal input. The intermediate frequency energy is abstracted from the same point as the local oscillator energy is injected and is decoupled by a low-pass filter. The local oscillator and the intermediate frequency circuits are incorporated on the same planar substrate as the carrier signal circuit and are therefore not critical in design.

REFERENCES:
patent: 3534267 (1970-10-01), Hyltin
patent: 3678395 (1972-07-01), Hunton et al.
patent: 3735267 (1973-05-01), Napoli
patent: 3882396 (1975-05-01), Schneider
patent: 4000469 (1976-12-01), McMaster
patent: 4085390 (1978-04-01), Standing

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