Multi-Standard CMOS LC QVCO with Reconfigurable LC Tank and Low Power Low Phase Noise Quadrature Generation Method

Ji-Hoon KIM  Hyung-Joun YOO  

IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences   Vol.E89-A    No.6    pp.1547-1551
Publication Date: 2006/06/01
Online ISSN: 1745-1337
DOI: 10.1093/ietfec/e89-a.6.1547
Print ISSN: 0916-8508
Type of Manuscript: Special Section PAPER (Special Section on Papers Selected from 2005 International Technical Conference on Circuits/Systems, Computers and Communications (ITC-CSCC2005))
multi-standard,  CMOS LC QVCO,  reconfigurable LC tank,  low power,  low phase noise,  quadrature generation method,  

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A VCO for multi-standard transceiver should operate in wide-tuning range, while providing low-phase noise quadrature outputs with low power consumption. In this paper, a multi-standard CMOS LC QVCO is designed utilizing reconfigurable LC tank and low power low phase noise quadrature generation method. Designed in 0.18 µm CMOS technology, the VCO achieved very wide tuning characteristics in two separate bands with low power consumption.