Title :
A fully integrated 2.4GHz adaptive biased CMOS power amplifier for 802.11g WLAN application
Author :
Ho, Jerry ; Tsao, Hen-Wai
Author_Institution :
Graduate Institute of Electronics Engineering, National Taiwan University, No.1, Sec. 4, Roosevelt Road, Taipei, Taiwan 106
Abstract :
A 2.4GHz fully integrated CMOS power amplifier with adaptive bias is presented in this paper. The output stage of the proposed power amplifier is adaptively biased by using a novel feed forward control circuit. The bias current is automatically adjusted according to the input power level. The efficiency is improved at the 6 dB power back off (PBO) point. The proposed power amplifier is fabricated in 0.18um CMOS process. The 1-dB compression output power is 22.5dBm with 30.4% power added efficiency (PAE), while the output power and PAE at 6 dB back off point for 802.11g WLAN application is 16.9 dBm and 12.9%.
Keywords :
Abstracts; Decision support systems; Hafnium; Indexes; Wireless communication; Adaptive Bias; Back-off; CMOS; Power Amplifier; Wireless LAN;
Conference_Titel :
Microwave Conference (APMC), 2014 Asia-Pacific
