Title :
Design and implementation of CMOS distributed mixers and oscillators for wide-band RF front-end
Author :
Ramadass, Yogesh Kumar ; Chakrabarti, Nirmal B.
Author_Institution :
Adv. VLSI Design Lab., Indian Inst. of Technol., West Bengal, India
Abstract :
The present work is devoted to the design and implementation of wideband tunable oscillators and wide band converters in 0.18 μ CMOS technology for ultra wideband applications. The mixer circuits include a distributed MOSCap mixer, utilizing nonlinearity in MOSCaps, optimized for conversion gain in the 3-8 GHz frequency range, and a distributed FET mixer operating in the 1-8 GHz range. A novel approach to distributed oscillator design using non-uniform delays is proposed and an oscillator tunable between 3.7-10 GHz is designed. Simulation results for the oscillator and mixers are presented.
Keywords :
CMOS analogue integrated circuits; MOS capacitors; convertors; delay circuits; field effect transistors; integrated circuit design; integrated circuit modelling; mixers (circuits); radiofrequency integrated circuits; radiofrequency oscillators; 0.18 micron; 1 to 8 GHz; 3.7 to 10 GHz; CMOS distributed mixers; CMOS technology; FET mixer; MOSCap mixer; conversion gain; distributed oscillator design; nonuniform delays; oscillators; ultra wideband applications; wide band converters; wide-band RF front-end; wideband tunable oscillators; Broadband amplifiers; CMOS technology; Circuits; Distributed amplifiers; Frequency conversion; Mixers; Oscillators; Radio frequency; Transceivers; Ultra wideband technology;
Conference_Titel :
Circuits and Systems, 2004. ISCAS '04. Proceedings of the 2004 International Symposium on
Print_ISBN :
0-7803-8251-X
DOI :
10.1109/ISCAS.2004.1329114
