Simulation Model for Analyzing Reverse Intermodulation Distortion in Envelope Elimination and Restoration Switching Mode RF Power Amplifiers

The article describes developed simulation model for analyzing reverse intermodulation distortion (RIMD) in envelope elimination and restoration (EER) switching mode RF power amplifiers (PA). The transient analysis method and MicroCap 12 as the modeling environment were chosen. The adequacy of the model’s operation in relation to a single voltage mode class D switching PA is shown by comparison with the previously obtained theoretical analysis results. Based on preliminary calculations, the sufficient accuracy of the developed simulation model within the considered dynamic range of the useful and interfering signals was confirmed. The possibility of using the developed simulation model for the EER RF PA RIMD analysis at various frequency detuning of interfering signals is shown.