Voltage-tuned millimeter-wave amplifier and method for tuning

Details Voltage-tuned millimeter-wave amplifier and method for tuning Voltage-tuned millimeter-wave amplifier and method for tuning

1996-12-02

1998-11-03

Mullins, James B.

Amplifiers

With amplifier condition indicating or testing means

330 68, 330277, 330286, 330296, 330297, H03F 3193

Patent

active

058314768

ABSTRACT:
A method (140) for tuning millimeter-wave FET amplifiers (20) during manufacture, through the application (144) of a gate bias voltage (52) so as to tune the FET (22) of the amplifier (20) to match an input circuit (24), and through the application (146) of a drain bias voltage (74) so as to tune the FET (22) of the amplifier (20) to match an output circuit (26), then measuring (150) the frequency response of the amplifier (20). This tuning method (140) is repeated (152) until a predetermined frequency response has been achieved. Once achieved, the predetermined frequency response is realized (154) by permanently fixing the gate bias voltage (52) and the drain bias voltage (74) at the determined values. This iterative method (140) of tuning amplifiers (20) is then repeated for all amplifiers (20) to be tuned.

REFERENCES:
patent: 4924191 (1990-05-01), Erb et al.
patent: 5412235 (1995-05-01), Nakajima et al.
patent: 5412340 (1995-05-01), Tanikoshi

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