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An envelope domain multislice behavioral modeling is introduced. The tradition AM-AM and AM- PM characteristics of power amplifiers are extended to envelope domain and base-band filter is applied to distortion complex envelope signal for description of the envelope memory effect. Using traditional one and two-tone tests, the coeffcients of nonlinear model and the FIR filter can be extracted. At last the model has been applied to a 10 W WCDMA power ampliffer to predict its output signal. And simulation results show that the model output conforms very well to the traditional transistor level simulation results.
The tradition AM-AM and AM-PM characteristics of power amplifiers are extended to the envelope domain and base-band filter is applied to the distortion complex envelope signal for description of the envelope memory effect. And the two-tone tests, the coeffcients of nonlinear model and the FIR filter can be extracted. At last the model has been applied to a 10 W WCDMA power ampliffer to predict its output signal. And simulation results show that the model output conforms very well to the traditional transistor level simulation results.