Title :
RF, Q-enhanced bandpass filters in standard 0.18 μm CMOS with direct digital tuning
Author :
Ahmed, H. ; DeVries, C. ; Mason, R.
Author_Institution :
Carleton Univ., Ottawa, Ont., Canada
Abstract :
In this paper, second-order RF Q-enhanced filters with center frequencies of 2.4/4.7 GHz are presented. The prototype designs are implemented in a 0.18 μm standard CMOS process. The filters achieve a SFDR of 43/35 dB at a Q of 250, while requiring only 0.3/1.2 mW when powered by a 1.5 V supply voltage. This is the first reported CMOS Q-enhanced filter capable of operating in the 5 GHz band.
Keywords :
CMOS analogue integrated circuits; Q-factor; UHF filters; UHF integrated circuits; active filters; band-pass filters; circuit tuning; field effect MMIC; microwave filters; 0.18 micron; 0.3 mW; 1.2 mW; 1.5 V; 2.4 GHz; 4.7 GHz; CMOS process; Q-enhanced RF bandpass filters; SFDR; direct digital tuning; filter dynamic range; second-order filters; Active filters; Band pass filters; Bandwidth; Demodulation; Digital filters; Inductors; RLC circuits; Radio frequency; Signal processing; Tuning;
Conference_Titel :
Circuits and Systems, 2003. ISCAS '03. Proceedings of the 2003 International Symposium on
Print_ISBN :
0-7803-7761-3
DOI :
10.1109/ISCAS.2003.1205629
