Title :
Design of class-E power amplifier for hybrid quadrature polar modulation transmitter
Author :
Jau, J.-K. ; Li, J.-Y. ; Li, C.-J. ; Chen, C.-T. ; Horng, T.S. ; Deng, D.-S.
Author_Institution :
Ind. Technol. Res. Inst., Hsinchu
fDate :
Oct. 30 2007-Nov. 2 2007
Abstract :
This paper presents a Class-E power amplifier (PA) realized in GaAs HBT technology for hybrid quadrature polar modulation (HQPM) application. A digital predistortion scheme is implemented to improve the linearity between supply voltage and output envelope of realized Class-E PA for HQPM application. The developed system prototype is capable of transmitting CDMA2000 lx signal very efficiently.
Keywords :
code division multiple access; power amplifiers; CDMA; digital predistortion scheme; hybrid quadrature polar modulation transmitter; power amplifier; Capacitance; Delay; Delta modulation; OFDM modulation; Power amplifiers; Predistortion; RF signals; Radio frequency; Transmitters; Voltage;
Conference_Titel :
TENCON 2007 - 2007 IEEE Region 10 Conference
Conference_Location :
Taipei
Print_ISBN :
978-1-4244-1272-3
Electronic_ISBN :
978-1-4244-1272-3
DOI :
10.1109/TENCON.2007.4428799
