Symmetrical discriminator and demodulator

Details Symmetrical discriminator and demodulator Symmetrical discriminator and demodulator

1984-08-20

1985-12-31

Grimm, Siegfried H.

Demodulators

Amplitude modulation demodulator

Having specific distortion, noise or other interference...

329142, 329204, H03D 326

Patent

active

045624038

ABSTRACT:
A symmetrical discriminator and demodulator having two radio wave tuned circuits disposed parallel. The discriminator and demodulator has a common grounding connection for one end of each radio wave tuned circuit. The opposite end of each tuned circuit is connected to a coupling capacitor to couple the tuned circuit to a demodulator. Two pairs of diodes are connected to each capacitor, the two pairs of diodes being connected together in a head to tail fashion in a cross-over figure-8 arrangement. The alternate junctures of said diode pairs are connected to two output coupling capacitors to provide a demodulated signal output. The symmetrical arrangement permits the use of extremely sensitive MOS-FETs in discriminator and demodulator circuitry.

REFERENCES:
patent: 2220098 (1940-11-01), Guanella
patent: 2881312 (1959-04-01), Ressler
patent: 3281701 (1966-10-01), Axe
patent: 3992674 (1976-11-01), Meyerhoff

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