Title :
A 15 GHz CMOS low phase noise VCO using coupled coplanar waveguide
Author :
Huang, Long ; Yuan, Shengyue ; Zhang, Runxi ; Li, Wei
Author_Institution :
Inst. of Microelectron. Circuit & Syst., East China Normal Univ., Shanghai, China
Abstract :
A 15 GHz voltage-controlled-oscillator (VCO) with coupled coplanar waveguide (CCPW) inductor for LC resonator is proposed in this work. Methods including optimization of varactors and CCPW are applied to minimize the supply voltage and current. The CCPW is fabricated with the second top metal layer to improve the quality factor and isolate noise from substrate. The VCO is implemented using IBM 90 nm CMOS technology. The measured operation frequency ranges from 14.62 GHz to 15.5 GHz, and the phase noise is -94.86 dBc/Hz at 1MHz offset from 15.5 GHz. The VCO core draws 9.13mA current from 1.5V power supply. The calculated FoM is 168.
Keywords :
CMOS integrated circuits; coplanar waveguide components; coplanar waveguides; phase noise; voltage-controlled oscillators; CMOS low phase noise VCO; LC resonator; coupled coplanar waveguide inductor; current 9.13 mA; frequency 14.62 GHz to 15.5 GHz; frequency 15 GHz; size 90 nm; voltage 1.5 V; voltage-controlled-oscillator; CMOS integrated circuits; CMOS technology; Coplanar waveguides; Inductors; Resistance; Varactors; Voltage-controlled oscillators; 15 GHz; CCPW; LC-VCO; MMIC; Transmission Line; VCO;
Conference_Titel :
Computer Research and Development (ICCRD), 2011 3rd International Conference on
Conference_Location :
Shanghai
Print_ISBN :
978-1-61284-839-6
DOI :
10.1109/ICCRD.2011.5764202
