Complementary symmetry FET mixer circuits

Details Complementary symmetry FET mixer circuits Complementary symmetry FET mixer circuits

1977-03-04

1978-05-16

Safourek, Benedict V.

Amplifiers

Signal feedback

Combined with control of bias voltage of signal amplifier

330264, 330270, 307304, H04B 128

Patent

active

040901394

ABSTRACT:
Series-connected, field-effect transistors (FET's) of complementary conductivity types are employed to mix two or more input signals. The transistors are quiescently biased in their linear operating range. Each input signal is applied to the gate electrode of one FET and the gate electrode of the corresponding FET of opposite conductivity type in the series string. The output signal containing sum and difference frequencies is available at a common drain connection between two adjacent transistors of opposite conductivity types at the center of the string.

REFERENCES:
patent: 2088432 (1937-07-01), Peterson
patent: 2538715 (1951-01-01), Van Weel
patent: 3383601 (1968-05-01), Squires
patent: 3727078 (1973-04-01), Wollesen
patent: 3886464 (1975-05-01), Dingwall

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