Title :
A 1V wide-tuning range quadrature VCO
Author :
Kuo, Chun-Wei ; Lin, Zhi-Ming
Author_Institution :
Grad. Inst. of Integrated Circuit Design, Nat. Changhua Univ. of Educ., Changhua, Taiwan
Abstract :
This paper presents a low power quadrature voltage-controlled oscillator (QVCO) with wide-tuning range. The topology of this QVCO is composed of differential Colpitts structure and back-gate coupling. The use of back-gate coupling reduces the power consumption and removes the additional noise contributions compared to conventional coupling transistor. This QVCO is designed in TSMC 0.18 ¿m CMOS process to cover the tuning band of 3.16~4.41GHz. With 1V voltage supply, the simulated power dissipation of the QVCO is 2.89 mW. The simulated phase noise at 1-MHz offset frequency is -108.52 dBc/Hz for 3.85 GHz.
Keywords :
CMOS integrated circuits; circuit tuning; low-power electronics; microwave oscillators; voltage-controlled oscillators; TSMC 0.18 ¿m CMOS process; back-gate coupling; differential Colpitts structure; frequency 1 MHz; frequency 3.16 GHz to 4.41 GHz; frequency 3.85 GHz; power 2.89 mW; power consumption reduction; quadrature voltage-controlled oscillator; size 0.18 mum; voltage 1 V; wide-tuning range; CMOS process; Energy consumption; Noise reduction; Phase noise; Power dissipation; Power supplies; Topology; Tuning; Voltage; Voltage-controlled oscillators; VCO; quadrature; wide-tuning;
Conference_Titel :
Information, Communications and Signal Processing, 2009. ICICS 2009. 7th International Conference on
Conference_Location :
Macau
Print_ISBN :
978-1-4244-4656-8
Electronic_ISBN :
978-1-4244-4657-5
DOI :
10.1109/ICICS.2009.5397558
