This paper presents the design of a resonant converter
with a switching frequency in the very high frequency range (30–
300 MHz), a large step down ratio (ten times), and low output
power (1 W). Several different inverters and rectifiers are analyzed
and compared. The class E inverter and rectifier are selected
based on complexity and efficiency estimates. Three different
power stages are implemented; one with a large input inductor,
one with a switch with small capacitances, and one with a switch
with low on-resistance. The power stages are designed with the
same specifications and efficiencies from 60.7–82.9% are achieved