CPC H04B 1/04 (2013.01) [H03F 1/3247 (2013.01); H04L 27/368 (2013.01); H03F 2201/3233 (2013.01); H04B 2001/0425 (2013.01); H04B 2001/0433 (2013.01)] | 38 Claims |
1. A system comprising:
a modulator configured to generate a carrier-modulated input signal;
a pre-distortion actuator configured to cause a processor to receive the carrier-modulated input signal and convert the carrier-modulated input signal into an output signal, the pre-distortion actuator comprising a behavioral model that models an entire transmit chain of the system including at least one mixer, at least one amplifier and at least one antenna and to predict an input-output relationship of the entire transmit chain of the system from an input to the at least one mixer to an output of the at least one antenna; and
a phased antenna array configured to receive the output signal and transmit the output signal, wherein the phased antenna array comprises a plurality of power amplifiers and a plurality of antenna elements, each antenna element of the plurality of antenna elements electrically coupled to a respective power amplifier of the plurality of power amplifiers, and wherein the pre-distortion actuator is configured to generate the output signal by applying, according to the behavioral model, a correction to the carrier-modulated input signal that cancels out nonlinearities and wherein the behavioral model is updated based on feedback received from a receiver from a previous output signal transmitted from the system to the receiver.
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