Title :
A 34% PAE, 26-dBm output power envelope-tracking CMOS power amplifier for 10-MHz BW LTE applications
Author :
Kang, Daehyun ; Park, Byungjoon ; Zhao, Chenxi ; Kim, Dongsu ; Kim, Jooseung ; Cho, Yunsung ; Jin, Sangsu ; Jin, Hadong ; Kim, Bumman
Author_Institution :
Department of Electrical Engineering, Pohang University of Science and Technology, Gyungbuk, Korea
Abstract :
An envelope tracking CMOS power amplifier is implemented in 0.18-µm CMOS, and achieves a PAE of 34%, an EVM of 3.2%, and an ACLR of −32.5 dBc at an average output power of 26 dBm and a frequency of 1.8 GHz for a 10-MHz BW 16 QAM 7.5-dB PAPR LTE signal. The envelope tracking operation improves a PAE by 2% to 6.5% over the stand-alone PA for the LTE signal.
Keywords :
CMOS integrated circuits; Harmonic analysis; Logic gates; Modulation; Peak to average power ratio; Power generation; Voltage measurement; CMOS; Efficiency; envelope tracking (ET); linearity; long term evolution (LTE); power amplifier (PA);
Conference_Titel :
Microwave Symposium Digest (MTT), 2012 IEEE MTT-S International
Conference_Location :
Montreal, QC, Canada
Print_ISBN :
978-1-4673-1085-7
Electronic_ISBN :
0149-645X
DOI :
10.1109/MWSYM.2012.6259461
