Title :
A sideband-suppressed low-power synthesizer for 14-band dual-carrier MB-OFDM UWB transceivers
Author :
Chen, Danfeng ; Fu, Haipeng ; Chen, Yunfeng ; Li, Wei ; Ye, Fan ; Li, Ning ; Ren, Junyan
Author_Institution :
State Key Lab. of ASIC & Syst., Fudan Univ., Shanghai, China
fDate :
May 30 2010-June 2 2010
Abstract :
This paper presents the design of a sideband-suppressed synthesizer for dual-carrier MB-OFDM transceivers covering 11 frequency bands from 6.2GHz to 9.4GHz and 3 frequency bands from 4.2GHz to 4.8GHz, each with a bandwidth of 264MHz. Careful band plan is made to minimize the complexity. The synthesizer generates 14 carrier frequencies from a single frequency source. Improvements are made to the circuits to further suppress the sidebands. The synthesizer chip is designed with TSMC´s 0.13-μm RF CMOS technology. The circuit draws a current of 42mA from a 1.2V supply. It achieves a sideband rejection of 45dBc and a phase noise of -105dBc/Hz@1MHz.
Keywords :
OFDM modulation; frequency synthesizers; transceivers; ultra wideband communication; 14-band dual-carrier MB-OFDM UWB transceivers; RF CMOS technology; bandwidth 264 MHz; current 42 mA; frequency 6.2 GHz to 9.4 GHz; multiband orthogonal frequency-division multiplexing system; sideband suppressed low power synthesizer; ultrawideband system; voltage 1.2 V; Amplitude modulation; Bandwidth; CMOS technology; Calibration; Circuits; Frequency synthesizers; Multiplexing; Phase locked loops; Radio frequency; Transceivers;
Conference_Titel :
Circuits and Systems (ISCAS), Proceedings of 2010 IEEE International Symposium on
Conference_Location :
Paris
Print_ISBN :
978-1-4244-5308-5
Electronic_ISBN :
978-1-4244-5309-2
DOI :
10.1109/ISCAS.2010.5536947
