Wideband feedforward gallium arsenide AGC circuit

Details Wideband feedforward gallium arsenide AGC circuit Wideband feedforward gallium arsenide AGC circuit

1990-01-17

1991-08-13

Gensler, Paul

Wave transmission lines and networks

Automatically controlled systems

307264, 330284, H03H 724

Patent

active

050399608

ABSTRACT:
An automatic gain control (AGC) circuit for microwave applications is disclosed. The AGC circuit includes a power divider for splitting the signal to be controlled into two signal paths. In one signal path the signal is passed through a GaAs monolithic attenuator. In the other signal path, an RF detector provides a detector output signal to a shaper circuit, which responds to the detector signal to provide control signals to the attenuator. Thus, the AGC circuit employs a feed forward technique for gain control, to provide fast settling times for the circuit.

REFERENCES:
patent: 3624491 (1971-11-01), Fidi et al.
patent: 3748495 (1973-07-01), Messinger
patent: 3918003 (1975-11-01), Seidel

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