Patent attributes
A method and a predistortion system for linearizing an output of a power amplifier include receiving a first input signal representative of an analog RF modulated signal of the predistortion system, receiving a digitized reference signal representative of an idealized reference signal, and receiving a digitized feedback signal representative of nonlinear characteristics of the power amplifier. The method further includes generating, using a lookup table, a predistortion correction signal based on an error between the digitized reference signal and the digitized feedback signal. The first input signal and the predistortion correction signal are combined to produce a predistortion signal that is supplied to the power amplifier to linearize the output of the power amplifier.
