Treatment of Error in Characterisation of Nonlinear Amplifiers

Abstract

The practical problems associated with predicting intermodulation performance of nonlinear amplifiers in multicarrier operation are discussed, with emphasis on the utility of these methods within the laboratory. A simple technique of calculating this performance and simultaneously compensating, in the predicted intermodulation, for errors in the monocarrier characterisation is presented, based on calculation of total intermodulation power and on supplementary three-carrier measurements.