A Highly Efficient Power Amplifier at 5.8 GHz Using Independent Harmonic Control

An optimal design of a highly efficient power amplifier (PA) is described using independent fundamental and second harmonic impedance control technique. In fabrication of a power amplifier, a tuning method is indispensable because the simulation models of the device and capacitor have some difference with the actual value. To achieve a high drain efficiency, the fundamental and harmonic impedances...