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

fYear

2011

fDate

8-11 May 2011

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);

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical and Computer Engineering (CCECE), 2011 24th Canadian Conference on

Conference_Location

Niagara Falls, ON

ISSN

0840-7789

Print_ISBN

978-1-4244-9788-1

Electronic_ISBN

0840-7789

Type

conf

DOI

10.1109/CCECE.2011.6030503

Filename

6030503