BJT Class-F power Amplifier De...

BJT Class-F power Amplifier Design Chapter 3 BJT CLASS-F POWER AMPLIFIER DESIGN

This Chapter provides the simulation and experimental verification of quite low-frequency prototype of polyharmonic power amplifier operated at 1MHz. However, this frequency is one-third of transition frequency, which is 3MHz for used BJT. These allow to neglect the influence of package parasitic parameters on output current and voltage waveforms in order to better illustrate proposed theoretical results.

1.

SIMULATION

The polyharmonic power amplifier equivalent circuit is shown in Fig. 3-1. The Ansoft Serenade SV 8.5 simulator was used28. The output network has a well-known “Third-Harmonic Peaking” construction13. There were parasitic resistances added to the parallel contours and in order to model the finite quality factors. Two cases were