Noise Simulation and Modeling for MEMS Varactor Based RF VCOs

摘要

This paper presents an analysis to model the Brownian motion induced noise in MEMS varactor based RF VCOs. A noise current model is used to describe the upconversion mechanism of Brownian noise. We show how this model lends itself to the computation of phase noise using a nonlinear perturbation technique. A behavioral model to describe the noise characteristics of MEMS varactors is also presented.