Analysis and simulation of phase noise in oscillators

In the paper, a nonlinear method is presented which is used to analyse the phase noise of RF and microwave oscillators in the time domain. It leads to exact design rules and provides us with the design guide for the key components of the oscillator. A circuit simulation at 1GHz is presented to confirm the theoretical results. The simulation and optimization of the oscillator are carried out with Advanced Design System (ADS). The simulation results are consistent with the theoretical analysis.