Title :
Design of low power, wider tuning range CMOS voltage control oscillator for ultra wideband applications
Author :
Iji, A.B. ; Zhu, Forest ; Heimlich, Michael
Author_Institution :
Dept. of Electron. Eng., Macquarie Univ., Sydney, NSW, Australia
fDate :
May 30 2012-June 1 2012
Abstract :
This paper presents a diode varactor and MOS varactor voltage control oscillators using 0.25μm CMOS technology, proposed for Ultra Wideband application. The VCOs are designed for 3-5GHz UWB Impulse Radio, The VCO´s has -107.6 dBc/Hz and -108.8 dBc/Hz phase noise at 1 MHz offset frequency. The diode varactor VCO has a tuning range of 300 MHz and the MOS varactor VCO has a wider tuning range of 610 MHz which is very difficult to achieve. Their power consumption at the maximum oscillation frequency is 2.26 mW from a 1.2 V voltage source, with -9 dBm output power which is very low compared to the conventional VCO in similar process design.
Keywords :
CMOS integrated circuits; circuit oscillations; circuit tuning; integrated circuit design; low-power electronics; phase noise; ultra wideband communication; varactors; voltage-controlled oscillators; CMOS technology; MOS varactor VCO; MOS varactor voltage control oscillator; UWB impulse radio; VCO design; diode varactor; frequency 1 MHz; frequency 3 GHz to 5 GHz; frequency 300 MHz; frequency 610 MHz; low power wider tuning range CMOS voltage control oscillator; maximum oscillation frequency; phase noise; power 2.26 mW; power consumption; size 0.25 mum; ultra wideband application; voltage 1.2 V; CMOS integrated circuits; Phase noise; Power demand; Tuning; Varactors; Voltage-controlled oscillators; CMOS; LC-tank VCO; MOS Varactor;
Conference_Titel :
IC Design & Technology (ICICDT), 2012 IEEE International Conference on
Conference_Location :
Austin, TX
Print_ISBN :
978-1-4673-0146-6
Electronic_ISBN :
pending
DOI :
10.1109/ICICDT.2012.6232845
