Mixer

Details Mixer Mixer

1996-07-25

1997-11-11

Mis, David

Modulators

Amplitude modulator

Suppressed carrier double sideband type

332178, 455333, H03C 154, H04B 128

Patent

active

056868707

ABSTRACT:
A low-powered mixer that is operable at a low voltage by a single positive power supply. A predetermined voltage and a first data signal Ss1 superimposed on the predetermined voltage are input into the drain D of an FET Q1, while a first carrier signal Sc1 is input into the FET Q1's gate G. The FET Q1 thus generates a first mixed signal So1 by mixing the first data signal Ss1 and the first carrier signal Sc1. A predetermined voltage and a second data signal Ss2 superimposed on the predetermined voltage are input into the FET Q2's drain D, while a second carrier signal Sc2 is input into the FET Q2's gate G. The FET Q2 thus generates a second mixed signal So2 by mixing the second data signal Ss2 and the second carrier signal Sc2. A capacitor C5 causes the sources S of the FETs Q1 and Q2 to float for DC and to be grounded for AC.

REFERENCES:
patent: 3601715 (1971-08-01), Pringle
patent: 5410744 (1995-04-01), Rinderle et al.

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