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A behavioural modelling of nonlinear RF power amplifiers using noise compensation technique

A nonlinear behavioural model of power amplifiers is proposed with an improved modelling method to fit up to the alternate channels where the noise contributions are dominant. From a memory polynomial model incorporating memory effects (Ku and Kenney 2003), noise contributions are considered for a better modelling. The proposed modelling method is utilised to model power amplifiers for Wideband Code Division Multiple Access (WCDMA) 1700 and 2100 bands. The power amplifier behaviour is modelled within 1 dB accuracy up to the alternate channels.