Load mismatch adaptation in coupler-based amplifiers

Details Load mismatch adaptation in coupler-based amplifiers Load mismatch adaptation in coupler-based amplifiers

2006-11-21

2006-11-21

Nguyen, Patricia (Department: 2817)

Amplifiers

With plural amplifier channels

Redundant amplifier circuits

C330S127000, C330S053000, C330S302000

Reexamination Certificate

active

07138861

ABSTRACT:
Coupler-based amplifiers provide a measure of load mismatch based on the difference between the two output signal amplitudes from the amplifiers. This measure can be used to control variable matching networks (VMNs) or amplifier supply voltages to maintain constant distortion levels and high power transfer/efficiency and even to control output power. Load mismatch is measured by comparing the amplifier device output amplitudes and adjusting the circuit based on the comparison to counteract undesired behavior, such as increasing distortion levels.

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ISA/EPO; International Search Report; Apr. 6, 2006; pp. 1-5; EPO; Rijswijk, NL.
IPEA/EPO; Written Opinion; Apr. 6, 2006; pp. 1-11; EPO; Rijswijk, NL.

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