Analysis and Design of 60GHz VCO Using 0.18μm SiGe BiCMOS Technology

This paper introduces a 60GHz cross-coupled differential voltage-controlled oscillator (VCO) realized in 0.18μm SiGe BiCMOS technology.After analyzing the performance of transmission line, the resonator is fabricated with λ/4 short-circuited transmission line.This paper presents noise filtering technique to improve the performance of the VCO based on the analysis of phase noise of the VCO.The VCO provides tuning ranges of 58.377GHz~60.365GHz when its bias current is 11mA and supply voltage is 2.2V.The simulation result shows a phase noise of-79.1dBc/Hz at 1MHz offset and-99.77dBc/Hz at 10MHz offset from 60.365GHz carrier.