Patent ID: 9240761
Filing Date: 2016-01-19
CPC Classification: H03F

Claim Text:
1. A method of configuring a power amplifier system comprising a plurality of power amplifier devices, the method comprising: receiving an input signal of the power amplifier system, wherein the power amplifier system comprises a first power amplifier device configured to generate a first output signal, a second power amplifier device configured to generate a second output signal, and a combiner configured to combine the first output signal and the second output signal to generate a power amplifier output signal; generating a phase error compensation signal using a phase error model configured to determine the phase error compensation signal based at least in part on an amplitude and a phase of the input signal, wherein the phase error model is configured to estimate a time and frequency-dependent phase error in the power amplifier output signal associated with the amplitude and the phase of the input signal, and wherein the phase error compensation signal is configured to at least partially correct the time and frequency-dependent phase error in the power amplifier output signal; applying the phase error compensation signal to the input signal to generate a corrected input signal; and providing the corrected input signal to the power amplifier system.