Facts and Fallacies in RFPA Waveform Engineering

Waveform engineering has been an important concept in RF power amplifier (RFPA) design, resulting in the definition of important new PA modes. The concept can, however, be taken too far. A set of voltage and current waveforms can be used to define an impedance environment, but that environment will not guarantee that the same waveforms can be reproduced in a practical implementation. The impedance environment is a necessary, but not a sufficient, condition for a specific waveform realization. Widely-touted switch modes are one example of this frequently misunderstood principle. This webinar will illustrate some common misconceptions using various design examples, including both switched and analog cases. Presented by: Dr. Steve Cripps, Cardiff University