A low-power full-band 802.11abg CMOS transceiver with on-chip PA

Author

Yen, Shih-Chieh ; Lin, Ying-Yao ; Chen, Tzung-Ming ; Chiu, Yung-Ming ; Chang, Bin-I ; Chan, Ka-Un ; Ying-Hsi-Lin ; Huang, Ming-Chong ; Huang, Jiun-Zen ; Lu, Chao-Hua ; Wang, Wen-Shan ; Hu, Che-Sheng ; Lee, Chao-Cheng

Author_Institution

Realtek Semicond. Corp., Hsinchu

fYear

2006

fDate

11-13 June 2006

Abstract

A low-power full-band 802.11abg transceiver in 0.15mum CMOS technology is presented. It shows 4.4/4dB low noise figures in 2.4/5GHz receiver chains. An on-chip PA (power amplifier) delivers 20dBm output P _1dB -40 to 140degC operation temperature is achieved by sensing technique. On-chip power detector and transmitter to receiver feedback loop estimate I/Q imbalance, and a new I/Q compensation scheme is implemented in LO (local oscillator) rather than signal paths. It consumes 65/75mA for 2.4/5GHz receives modes and 200/107mA for 2.4/5GHz transmits modes respectively. The low power consumption, high integration and robustness make this transceiver suitable for portable applications

Keywords

CMOS integrated circuits; low-power electronics; power amplifiers; transceivers; wireless LAN; -40 to 140 C; 0.15 micron; 107 mA; 140 C; 2.4 GHz; 200 mA; 4 dB; 4.4 dB; 5 GHz; 65 mA; 75 mA; 802.11abg transceiver; CMOS technology; I/Q compensation scheme; I/Q imbalance; local oscillator; on-chip power amplifiers; on-chip power detector; on-chip power transmitter; receiver feedback loop; CMOS technology; Detectors; Feedback loop; Local oscillators; Noise figure; Operational amplifiers; Power amplifiers; Temperature sensors; Transceivers; Transmitters;

fLanguage

English

Publisher

ieee

Conference_Titel

Radio Frequency Integrated Circuits (RFIC) Symposium, 2006 IEEE

Conference_Location

San Francisco, CA

Print_ISBN

0-7803-9572-7

Type

conf

DOI

10.1109/RFIC.2006.1651097

Filename

1651097