This document describes the design and simulation of a five-stage current starved CMOS voltage controlled oscillator (VCO) implemented in 180nm, 130nm, and 90nm process technologies. Simulation results show that the VCO achieves a wide frequency range from 165.23MHz to 2.3073GHz in 180nm technology, from 28.237MHz to 3.5888GHz in 130nm technology, and from 50MHz to 3.5134GHz in 90nm technology. Power dissipation decreases with each technology node, ranging from 1235.7uW in 180nm to 240uW in 90nm. Phase noise also improves slightly with each technology, from -124.52dBc/Hz at 1MHz