Patent ID: 8224266

Claim:
A predistortion architecture for use with power amplifiers for wireless communications systems, the predistortion architecture comprising: an input for receiving signals representative of RF band signals, a first envelope detector responsive to representative signals of RF band input signals at an input of a modulator for providing a first input to a time-division multiplexer; a second envelope detector adapted to be responsive to an output signal representative of the output signals of a power amplifier for providing a second input to the time-division multiplexer; a phase detector responsive to the signals representative of the RF band input signals and the signals representative of the power amplifier output signals for providing a third input to the time-divisional multiplexer; a digital predistortion processor responsive to inputs from the time-division multiplexer for generating predistortion correction signals as an output; and logic for converting the output of the digital predistortion processor into analog predistortion correction signals and combining them with the RF input signals.