Title :
A dual-band transmitter for IEEE 802.11a/b/g WLAN
Author :
Lee, Yi-Bin ; Ko, Chun-Lin ; Kuo, Ming-Ching ; Su, Peng-Un ; Yang, Tzu-Yi
Author_Institution :
SoC Technol. Center, Ind. Technol. Res. Inst., Hsinchu, Taiwan
Abstract :
A dual-band transmitter for WLAN 802.11a/b/g is implemented in a 0.25-μm CMOS process. With suitable architecture choosing and frequency planning, many components can be shared, modulation accuracy can be improved, and only one VCO and frequency synthesizer is needed for the dual-band application. The current consumption is 82mA at 5GHz band and 63mA at 2.4GHz band under 2.5V power supply. For 64-QAM OFDM mode, an EVM of -36dB is achieved at both bands.
Keywords :
CMOS integrated circuits; IEEE standards; OFDM modulation; frequency synthesizers; quadrature amplitude modulation; transmitters; voltage-controlled oscillators; wireless LAN; 0.25 micron; 2.4 GHz; 2.5 V; 36 dB; 5 GHz; 63 mA; 64-QAM OFDM mode; 82 mA; CMOS process; EVM; IEEE standards; VCO; WLAN 802.11a/b/g; current consumption; dual-band transmitter; frequency planning; frequency synthesizer; Bandwidth; CMOS technology; Dual band; Frequency synthesizers; Linearity; OFDM modulation; Transconductance; Transmitters; Voltage-controlled oscillators; Wireless LAN;
Conference_Titel :
VLSI Design, Automation and Test, 2005. (VLSI-TSA-DAT). 2005 IEEE VLSI-TSA International Symposium on
Print_ISBN :
0-7803-9060-1
DOI :
10.1109/VDAT.2005.1500027
