Title :
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
fDate :
5/1/2011 12:00:00 AM
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 FoMT 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;
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/LMWC.2011.2124449
