Patent ID: 7890067

Claim:
A system for power amplification of a partially modulated radio-frequency (RF) signal representative of at least a phase component of an original waveform, the system comprising: a feedback-controlled modulator configured to modulate the partially modulated RF signal based upon a feedback-corrected control signal and to generate a modulated RF signal; a power amplifier coupled to the feedback-controlled modulator and configured to amplify the modulated RF signal and to generate an amplified RF output signal; an amplitude detector coupled to the power amplifier and configured to detect an amplitude characteristic of the amplified RF output signal and to generate an amplitude feedback signal; a feedback network coupled to the amplitude detector and the feedback-controlled modulator and configured to generate the feedback-corrected control signal based upon a difference between the amplitude feedback signal and an amplitude component of the original waveform; and an IQ modulator configured to modulate an RF carrier signal based upon a pair of IQ signals representative of at least the phase component of the original waveform and to generate the partially modulated RF signal.