Patent ID: 7961045
Filing Date: 2011-06-14
Classification: H03F,H04L

Abstract:
1. A method of optimizing performance of a multiple path amplifier, the method comprising: digitally processing N,N>1, input signals to generate a respective sub-signal for each of M, M>2, branches of the multiple path amplifier; digitally pre-distorting each sub-signal using a known performance characteristic of its associated branch of the multiple path amplifier; and supplying each pre-distorted sub-signal to its associated branch of the multiple path amplifier, wherein the multiple path amplifier comprises a combiner network for combining M amplified sub-signals from each branch to generate N output signals, and wherein digitally processing the N input signals comprises: defining each one of the M sub-signals as a respective predetermined function of the N input signals; and for each sub-signal, digitally processing the N input signals using the respective predetermined function.