Title :
A 64 GHz 5 mW low phase noise Gm-boosted colpitts CMOS VCO with self-switched biasing technique
Author :
Tai Nghia Nguyen ; Pande, Partha Pratim ; Deukhyoun Heo
Author_Institution :
Dept. of EECS, Washington State Univ., Pullman, WA, USA
Abstract :
A gm-boosted Colpitts voltage-controlled oscillator (VCO) for millimeter wave application is presented in this paper. By employing a new self-switched biasing technique, the flicker noise corner of the circuit is reduced, leading to improved phase noise performance. Furthermore, trans-conductance is boosted by using a modified cross-coupled pair with parallel capacitance networks. The novel VCO is demonstrated in 65nm CMOS with 7% frequency tuning range from 62-66.5 GHz. With 1 V supply and 5 mA current, phase noise of -113.7 dBc/Hz at 10 MHz offset is measured.
Keywords :
CMOS integrated circuits; field effect MIMIC; flicker noise; millimetre wave oscillators; phase noise; voltage-controlled oscillators; Gm-boosted colpitts CMOS VCO; boosted transconductance; current 5 mA; flicker noise corner; frequency 62 GHz to 66.5 GHz; low phase noise; millimeter wave application; modified cross-coupled pair; parallel capacitance networks; power 5 mW; self-switched biasing technique; size 65 nm; voltage 1 V; voltage-controlled oscillator; CMOS integrated circuits; CMOS technology; Frequency measurement; Phase measurement; Switches; Voltage-controlled oscillators; CMOS; VCO; gm-boosted; oscillator; phase noise;
Conference_Titel :
Microwave Symposium (IMS), 2015 IEEE MTT-S International
Conference_Location :
Phoenix, AZ
DOI :
10.1109/MWSYM.2015.7167025
