Title :
An area-efficient 5GHz/10GHz dual-mode VCO with coupled helical inductors in 0.13-UM CMOS technology
Author :
Wanghui Zou ; Xiaofei Chen ; Jianming Lei ; Kui Dai ; Xuecheng Zou
Author_Institution :
Res. Center for VLSI Circuits & Syst., Huazhong Univ. of Sci. & Technol., Wuhan, China
Abstract :
The helical inductor is a three-dimensional multi-layer inductor with relatively higher quality factor and self resonance frequency compare with other multi-layer inductors. A new dual-mode coupled-inductor VCO based on helical inductors is proposed, which is able to work on 5GHz and 10GHz band. Because of the helical inductors used, the proposed VCO is much more area-efficient than previous coupled-inductor structure. The simulation results show that the phase noise at 1 MHz offset is -101.6dBc/Hz and -101.3dBc/Hz at the frequency of 4.8GHz and 10.4GHz, respectively. The VCO draws 4mA from 1.2 V supply.
Keywords :
CMOS analogue integrated circuits; field effect MMIC; inductors; microwave oscillators; voltage-controlled oscillators; CMOS technology; area-efficient dual-mode VCO; coupled helical inductors; current 4 mA; dual-mode coupled-inductor VCO; frequency 1 MHz to 10 GHz; phase noise; self resonance frequency; size 0.13 mum; three-dimensional multilayer inductor; voltage 1.2 V; Couplings; Inductors; Phase noise; Q factor; Resonant frequency; Tuning; Voltage-controlled oscillators; CMOS; coupled inductor; coupled resonator; dual-mode VCO; helical inductor; voltage controlled oscillator (VCO);
Conference_Titel :
Electrical and Computer Engineering (CCECE), 2011 24th Canadian Conference on
Conference_Location :
Niagara Falls, ON
Print_ISBN :
978-1-4244-9788-1
Electronic_ISBN :
0840-7789
DOI :
10.1109/CCECE.2011.6030503
