Abstract
Electrical and electro-thermal memory effects influence significantly the performance of RF power amplifiers and predistortion-based linearizers as signal bandwidth and operation power increase. In this paper, we present an electro-thermal behavior model for RF power amplifiers. Input and output time domain waveforms have been used to identify the PAs model parameters. Measurements that have been conducted on a 90-watt peak LDMOS power amplifier were found to be in good agreement with those obtained from a simulation that uses the model developed and implemented in ADS environment.
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