An X-band CMOS quadrature balanced VCO

Author

Ko, Sangsoo ; Lee, Hui Dong ; Kang, Dong-Woo ; Hong, Songcheol

Author_Institution

Dept. Electr. & Electron. COmput. Sci.,, Korea Adv. Inst. of Sci. & Technol., Daejeon, South Korea

Volume

3

fYear

2004

fDate

6-11 June 2004

Firstpage

2003

Abstract

A new quadrature balanced voltage controlled oscillator (B-VCO) is presented. The quadrature and single B-VCO with identical components are implemented in 0.18 μm CMOS technology. The quadrature B-VCO has lower phase noise, higher oscillation frequency and higher figure of merit (FOM) than the single B-VCO. The measured phase noise values of the single and quadrature VCO are -114.83 and -116.67 dBc/Hz at the offset frequencies of 1 MHz at the center frequency of 10.21 and 10.81 GHz, respectively. Both VCO cores consume about 8.8 mA from a 1.8 V supply. The FOM of 183 and 185 dB are achieved in the quadrature and single VCO respectively.

Keywords

CMOS analogue integrated circuits; integrated circuit design; integrated circuit noise; phase noise; voltage-controlled oscillators; 0.18 micron; 1 MHz; 1.8 V; 10.21 GHz; 10.81 GHz; 8.8 mA; CMOS technology; X-band; current switching; figure of merit; offset frequency; oscillation frequency; phase noise; quadrature balanced voltage controlled oscillator; single B-VCO; transformer; CMOS process; CMOS technology; Circuit noise; Energy consumption; Frequency; Phase noise; Power supplies; Switches; Voltage; Voltage-controlled oscillators;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium Digest, 2004 IEEE MTT-S International

ISSN

0149-645X

Print_ISBN

0-7803-8331-1

Type

conf

DOI

10.1109/MWSYM.2004.1339005

Filename

1339005