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

fYear

2012

fDate

May 30 2012-June 1 2012

Firstpage

1

Lastpage

4

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;

fLanguage

English

Publisher

ieee

Conference_Titel

IC Design & Technology (ICICDT), 2012 IEEE International Conference on

Conference_Location

Austin, TX

ISSN

pending

Print_ISBN

978-1-4673-0146-6

Electronic_ISBN

pending

Type

conf

DOI

10.1109/ICICDT.2012.6232845

Filename

6232845