Apparatus for optimizing the performance of a power amplifier

Details Apparatus for optimizing the performance of a power amplifier Apparatus for optimizing the performance of a power amplifier

1997-04-16

1999-03-09

Mottola, Steven

Amplifiers

Variable impedance for signal channel controlled by separate...

330284, H03G 320

Patent

active

058806350

ABSTRACT:
The performance of a power amplifier used in a signal transmitter, such as in a communication system (e.g., a personal communication system PCS), is optimized by coupling a controllable impedance to the output impedance of the power amplifier. The power output level of the amplifier, which is variable over a range from a minimum level to a maximum level and which is accompanied by a corresponding amplifier output impedance change, is detected, as is the operating power supplied to the amplifier. The controllable impedance that is coupled to the amplifier output is controlled as a function of the detected amplifier power output level and sensed operating power.

REFERENCES:
patent: 5673001 (1997-09-01), Kim et al.

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