DocumentCode
2661809
Title
Load modulation for efficiency enhancement of inverse class-D power amplifiers
Author
El Din, Mohamed Gamal ; Geck, Bernd ; Rolfes, Ilona ; Eul, H.
Author_Institution
Inst. of Radiofreq. & Microwave Eng., Leibniz Univ. Hannover, Hannover, Germany
fYear
2010
fDate
20-22 Oct. 2010
Firstpage
1
Lastpage
3
Abstract
This paper presents the implementation of load modulation concept to inverse class-D power amplifiers, additionally an adaptive matching network suitable for differential applications will be presented. A 20 Watt inverse class-D amplifier at 1 GHz was designed and measured, with a maximum power added efficiency of 78%. Through using load modulation the amplifier can achieve a power added efficiency greater than 60% over 11 dB output dynamic range.
Keywords
UHF power amplifiers; impedance matching; adaptive matching network; frequency 1 GHz; inverse class-D power amplifiers; load modulation; power 20 W; power added efficiency; Antennas;
fLanguage
English
Publisher
ieee
Conference_Titel
Antennas and Propagation (MECAP), 2010 IEEE Middle East Conference on
Conference_Location
Cairo
Print_ISBN
978-1-61284-903-4
Type
conf
DOI
10.1109/MECAP.2010.5724207
Filename
5724207
Link To Document