Amplifier Linearization by Complementary Pre-or Post-Distortion

A technique of amplifier linearization through the use of complementary pre or post distortion correction circuits is investigated. Using the Volterra series representation, distortion cancellation constraints imposed on the correction circuit are derived. A simple distortion correction circuit consisting of a diode, a resistor, and a capacitor (inductor) is then devised to meet the above constraints for cancellation of the amplifier´s third order distortion products.