Multi-standard CMOS LC QVCO with reconfigurable LC tank and low power low phase noise quadrature generation method

Abstract

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 mu m CMOS technology, the VCO achieved very wide tuning characteristics in two separate bands with low power consumption.