Title :
Load–Pull Wideband Class-E Amplifier
Author :
Ortega-González, Francisco Javier
Author_Institution :
EUIT Telecomunicacion, Univ. Politecnica de Madrid
fDate :
3/1/2007 12:00:00 AM
Abstract :
A new technique to design wideband Class-E power amplifiers (PAs) based on the synthesis of specific load admittances at fundamental and harmonics is shown. This technique symplifies the design of wideband Class-E amplifiers by making it independent on any specific load network, implementation, and intrinsic transistor output capacitance COUT. Simulations and actual measurements on a 15-W VHF wideband Class-E PA prototype designed using this method show 35% fractional bandwidth with 80% drain efficiency
Keywords :
VHF circuits; network synthesis; power amplifiers; wideband amplifiers; load-pull wideband class-E amplifier; power amplifiers; Admittance; Bandwidth; Broadband amplifiers; Capacitance; Microwave transistors; Network synthesis; Power amplifiers; Power system harmonics; Switches; Voltage; Class-E; load–pull; power amplifier (PA); wideband;
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/LMWC.2006.890504
