Title :
Design of a 24GHz wide tuning-range VCO with optimized switches in resonator
Author :
Zheng, Hongda ; Yang, Oongxu ; Zeng, Oajie ; Zhang, Li ; Yu, Zhiping
Author_Institution :
Inst. of Microelectron., Tsinghua Univ., Beijing, China
Abstract :
A wide tuning range 24GHz VCO (voltage-controlled oscillator) using IBM 90nm CMOS process is presented. Switched inductor and two bits capacitance array offer a widely tuning range. In addition, optimized switches are adopted to improve both tuning range and phase noise performance. Simulation shows that -101dBc/Hz phase noise is achieved at 1MHz offset. The tuning range of the VCO spans from 21.9GHz to 27.1GHz. Total power consumption of the VCO core is 3.3mW from 0.8V supply.
Keywords :
CMOS analogue integrated circuits; inductors; microwave oscillators; microwave resonators; phase noise; switching circuits; voltage-controlled oscillators; capacitance array; frequency 1 MHz; frequency 21.9 GHz to 27.1 GHz; phase noise performance; power 3.3 mW; resonator switch; size 90 nm; switched inductor; voltage 0.8 V; wide tuning-range voltage controlled oscillator; Arrays; Dual band; Resonant frequency; Switches; Tuning; Varactors;
Conference_Titel :
Electron Devices and Solid-State Circuits (EDSSC), 2010 IEEE International Conference of
Conference_Location :
Hong Kong
Print_ISBN :
978-1-4244-9997-7
DOI :
10.1109/EDSSC.2010.5713765
