A Versatile Time-Domain Approach to Simulate Oscillators in RF Circuits

This paper presents a versatile simulation technique for the time-domain analysis of RF oscillators. The method blends the superior accuracy and robustness of implicit Runge–Kutta integration formulas with the high efficiency of a particular envelope-following technique. The method can be applied to study both transient and steady-state responses of autonomous and nonautonomous circuits and can also be applied to the case of harsh nonlinear oscillator topologies.