New Modified Current Starved Ring Voltage Controlled Oscillator and Frequency to Voltage Rectifier for Noise Suppression from 1 – 6 GHz in 180 nm Technology

摘要

This paper proposes a new and simple combined effort of a NMOS sink current starved ring voltage controlled oscillator (NS-CSRVCO) fed-back with a manual frequency to voltage rectifier (FVR) for noise suppression in mixed signal applications. The VCO and FVR operate from 1-6 GHz, with the VCO providing a tuning range of 176.4% with excellent linearity in oscillation frequencies from 0.3444 GHz – 5.679 GHz with a center frequency of 3.024 GHz, within a control voltage (VDD) of 0.6 V to 2.5 V. The properties of both the VCO and FVR makes it suitable for Military, Satellite applications in the microwave range.