RF power amplifier system having a plurality of different...

Details RF power amplifier system having a plurality of different... RF power amplifier system having a plurality of different...

2007-01-09

2007-01-09

Mottola, Steven J. (Department: 2817)

Amplifiers

With control of power supply or bias voltage

With control of input electrode or gain control electrode bias

C330S136000

Reexamination Certificate

active

10889428

ABSTRACT:
A multiple mode RF power amplifier system is presented having N different power control modes for controlling the level of the output RF power relative to applied input power. The system includes a mode controller that receives one of N different mode select commands and in response thereto selects one of N different control modes to be operational. A gain controller controls the gain of the power amplifier system so as to control the level of the output RF power as a function of a control signal applied thereto. The control signal is applied to the gain controller wherein the control signal has a value dependent upon which of the N modes has been selected.

REFERENCES:
patent: 5276917 (1994-01-01), Vanhanen et al.
patent: 5361403 (1994-11-01), Dent
patent: 5541554 (1996-07-01), Stengel et al.
patent: 6842072 (2005-01-01), Cheng et al.
patent: 2003/0099032 (2003-05-01), Asao et al.

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