This paper presents a voltage-mode three-level class-D gallium nitride (GaN) power amplifier (PA) for the 700MHz band. The PA achieves a drain efficiency of 68.7%, at a maximum output power of 2.1 W ...

The operation of the class E tuned power amplifier may be described by a set of equations based on Fourier component analysis. Previous publications have derived an optimum operating mode in which the ...