Title :
Performance Analysis of Pulse Width Modulated RE Class- E Power Amplifier
Author :
Tom, Kevin ; Faulkner, Mike ; Lejon, Thomas
Author_Institution :
CTME, Victoria Univ., Melbourne, Vic.
Abstract :
The efficiency performance of a Class E amplifier and its anti-parallel diode derivative are compared for two different operational modes, pulse width modulation (PWM) and load modulation. The effect of modulated signals is investigated. The anti-parallel diode proved effective in doubling the efficiency of the load modulation method, but this still did not surpass the efficiency of the traditional PWM mode of operation where an efficiency of 45% was indicated for a 8 dB peak to average Rayleigh enveloped signal
Keywords :
power amplifiers; pulse width modulation; radiofrequency amplifiers; RF Class-E power amplifier; Rayleigh enveloped signal; load modulation; modulated signals; pulse width modulated amplifier; pulse width modulation; Diodes; Linearity; Performance analysis; Power amplifiers; Pulse amplifiers; Pulse width modulation; Radiofrequency amplifiers; Space vector pulse width modulation; Switches; Zero voltage switching;
Conference_Titel :
Vehicular Technology Conference, 2006. VTC 2006-Spring. IEEE 63rd
Conference_Location :
Melbourne, Vic.
Print_ISBN :
0-7803-9391-0
Electronic_ISBN :
1550-2252
DOI :
10.1109/VETECS.2006.1683158
