A 45 GHz CMOS VCO Adopting Digitally Switchable Metal-Oxide-Metal Capacitors

Author

Huang, Guochi ; Kim, Seong-Kyun ; Gao, Zhiqiang ; Kim, SoYoung ; Fusco, Vincent ; Kim, Byung-Sung

Author_Institution

Sch. of Inf. & Commun., Sungkyunkwan Univ., Suwon, South Korea

Volume

21

Issue

5

fYear

2011

fDate

5/1/2011 12:00:00 AM

Firstpage

270

Lastpage

272

Abstract

A 45 GHz millimeter-wave (MMW) VCO adopting digitally switchable metal-oxide-metal (MOM) capacitors as the tuning element is described in this work. The MOM capacitor is designed to have discrete capacitance values in order to extend frequency tuning range. The MMW VCO with the switchable MOM capacitor demonstrates an operation frequency ranging from 43.5 to 45.5 GHz. The measured phase noise at 3 MHz offset is less than -97 dBc/Hz across the entire frequency band. The VCO core consumes 4 mW power under a 1 V supply. The measured FoM_T is -173.

Keywords

CMOS integrated circuits; field effect MIMIC; millimetre wave oscillators; phase noise; switched capacitor networks; voltage-controlled oscillators; CMOS VCO; digitally switchable metal-oxide-metal capacitors; field effect MIMIC; frequency 43.5 GHz to 45.5 GHz; frequency tuning range; millimetre wave oscillators; phase noise; power 4 mW; voltage 1 V; voltage-controlled oscillators; Capacitance; Capacitors; Metals; Moment methods; Strips; Switches; Voltage-controlled oscillators; CMOS; phase noise; switchable metal-oxide-metal capacitor; switched capacitor array; voltage controlled oscillator; wideband;

fLanguage

English

Journal_Title

Microwave and Wireless Components Letters, IEEE

Publisher

ieee

ISSN

1531-1309

Type

jour

DOI

10.1109/LMWC.2011.2124449

Filename

5739554