Ultra-Wideband CMOS Differential Colpitts VCO with adaptive gm bias for the 60GHz WPAN

Author

Kim, Ki-Jin ; Ahn, K.H.

Author_Institution

Syst. Package Res. center, Korea Electron. Technol. Inst., Seongnam, South Korea

fYear

2009

fDate

6-8 Nov. 2009

Firstpage

1

Lastpage

4

Abstract

A Ultra-Wideband CMOS Differential Colpitts VCO for 60GHz WPAN fabricated with the 90nm TSMC Process is presented. The VCO is composed of a NMOS transistor-pair as a core circuit, 3 bit capacitor array for enhancement of the oscillation bandwidth, and adaptive gm bias for desensitizing process variations. The proposed architecture can operate at 28~34GHz and the phase noise at 1MHz offset is -112dBc/Hz. The power consumption of the VCO including inherent buffer is 21.6mW. Compared with previous studied works, the proposed VCO has the widest bandwidth at mm-Wave frequency.

Keywords

CMOS integrated circuits; personal area networks; ultra wideband communication; voltage-controlled oscillators; WPAN; frequency 28 GHz to 34 GHz; frequency 60 GHz; power 21.6 mW; ultra wideband CMOS differential Colpitts VCO; Adaptive arrays; Bandwidth; CMOS process; Capacitors; Circuits; Energy consumption; MOSFETs; Phase noise; Ultra wideband technology; Voltage-controlled oscillators; 60 GHz WPAN; Colpitts VCO; Wideband width; adaptive bias;

fLanguage

English

Publisher

ieee

Conference_Titel

Signals, Circuits and Systems (SCS), 2009 3rd International Conference on

Conference_Location

Medenine

Print_ISBN

978-1-4244-4397-0

Electronic_ISBN

978-1-4244-4398-7

Type

conf

DOI

10.1109/ICSCS.2009.5412571

Filename

5412571