Low phase noise V-band push–push voltage controlled oscillator using 0.15 [micro sign]m GaAs pseudomorphic high electron-mobility transistor technology

Abstract

A low phase noise, low dissipated power and small-size V-band voltage-controlled oscillator (VCO) using dual cross-coupled pair configuration, capacitance-splitting technique and push–push topology is presented. The V-band VCO circuit uses 0.15 µm GaAs pseudomorphic high electron-mobility transistor technology. The VCO has low phase noise, of −108.43 dBc/Hz, at a 1 MHz offset from a 62 GHz carrier and can be tuned from 61.11 to 62.66 GHz. The figure of merit is −190.45 dBc/Hz. The power consumption of the VCO with 1.04 mm2 chip area is 24 mW, from a 1 V power supply.