TY - GEN
T1 - A high efficiency and high linearity power amplifier utilizing postlinearization technique for 5.8 GHz DSRC applications
AU - Liu, Qing
AU - Jiangtao, Sun
AU - Shu, Yong Ju
AU - Horie, Koji
AU - Itoh, Nobuyuki
AU - Yoshimasu, Toshihiko
PY - 2011
Y1 - 2011
N2 - In this paper, a post-linearization technique of cascode CMOS power amplifier is presented. The proposed method adopts two cascode FET, one operates in class AB mode and the other works near class B mode, which absorbs the nonlinear current of third-order intermodulation distortion (IMD). The proposed method is investigated for 5.8 GHz Dedicated Short Range Communication (DSRC) applications, and fabricated by 0.13 μm CMOS process. The measured results show that the proposed power amplifier exhibited a power gain of 11.5 dB, an output power of 1 dB compression point (P1dB) of 17.3 dBm, a power added efficiency (PAE) of 32% at P1dB with a low voltage operation of 2.0 V. The improvement in IMD of 6 dB over large output power range and a maximum improvement of 12 dB were achieved.
AB - In this paper, a post-linearization technique of cascode CMOS power amplifier is presented. The proposed method adopts two cascode FET, one operates in class AB mode and the other works near class B mode, which absorbs the nonlinear current of third-order intermodulation distortion (IMD). The proposed method is investigated for 5.8 GHz Dedicated Short Range Communication (DSRC) applications, and fabricated by 0.13 μm CMOS process. The measured results show that the proposed power amplifier exhibited a power gain of 11.5 dB, an output power of 1 dB compression point (P1dB) of 17.3 dBm, a power added efficiency (PAE) of 32% at P1dB with a low voltage operation of 2.0 V. The improvement in IMD of 6 dB over large output power range and a maximum improvement of 12 dB were achieved.
KW - CMOS power amplifier
KW - DSRC
KW - IMD
KW - Post-linearization technique
UR - http://www.scopus.com/inward/record.url?scp=79953053666&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=79953053666&partnerID=8YFLogxK
U2 - 10.1109/PAWR.2011.5725375
DO - 10.1109/PAWR.2011.5725375
M3 - Conference contribution
AN - SCOPUS:79953053666
SN - 9781424476855
T3 - 2011 IEEE Radio and Wireless Week, RWW 2011 - 2011 IEEE Topical Conference on Power Amplifiers for Wireless and Radio Applications, PAWR 2011
SP - 45
EP - 48
BT - 2011 IEEE Radio and Wireless Week, RWW 2011 - 2011 IEEE Topical Conference on Power Amplifiers for Wireless and Radio Applications, PAWR 2011
T2 - 2011 IEEE Topical Conference on Power Amplifiers for Wireless and Radio Applications, PAWR 2011
Y2 - 16 January 2011 through 19 January 2011
ER -