Sub-Optimum Class E RF Power Amplifier

The Class E power amplifier has a big popularity because of its high efficiency. The above can be achieved in optimum class E when both soft commutation conditions have been metzero voltage and zero voltage slope of during turn on. Meeting only the one of the above conditions is described as suboptimum mode and effectively increases the degree of freedom with one. In addition to main amplifier parameters like operation frequency, output power and load resistance, both peak current and peak voltage over the switch can be used. The theoretical results have been confirmed with computer simulations.