NEW BROADBAND DRIVER FOR SWITCH-MODE RF POWER WIDEBAND AMPLIFIERS

摘要

This article shows a new wideband driver for switch-mode RF power wideband amplifiers based on the voltage waveforms generated across nonnominal wideband Class-E amplifier's switch. Their key features are high efficiency, wideband operation, and only positive driving voltage generation. Harmonic balance simulations and measurements on a prototype (B = 40%, P{sub}(OUT) = 50 W at 7.5 MHz, η{sub}(OV) [mt] 90%) show its effectiveness.