Title :
A 1V wide-tuning back-gate coupling quadrature VCO
Author :
Hsieh, You-Yi ; Lin, Zhi-Ming
Author_Institution :
Grad. Inst. of Integrated Circuit Design, Nat. Changhua Univ. of Educ., Changhua, Taiwan
Abstract :
This paper presents a back-gate coupled quadrature voltage-controlled oscillator (QVCO) based on a differential Colpitts structure. With this topology, the QVCO achieved better performance on tuning range, power dissipation, and noise as compared with conventional structures of QVCO. Designed in TSMC 0.18 μm CMOS process, this QVCO showed a 33% tuning range. The simulated power dissipation is 2.89 mW with 1V supply voltage. The simulated phase noise at 1-MHz offset frequency is -108.52 dBc/Hz at 3.85 GHz center frequency.
Keywords :
CMOS integrated circuits; circuit tuning; phase noise; voltage-controlled oscillators; CMOS process; Colpitts structure; phase noise; power dissipation; size 0.18 mum; tuning range; voltage 1 V; voltage-controlled oscillator; wide-tuning back-gate coupling quadrature VCO; Colpitts; LC-QVCO; back-gate; wide tuning;
Conference_Titel :
TENCON 2010 - 2010 IEEE Region 10 Conference
Conference_Location :
Fukuoka
Print_ISBN :
978-1-4244-6889-8
DOI :
10.1109/TENCON.2010.5685909
