Envelope simulation by SPICE compatible models of electric circuits driven by modulated signals

SPICE compatible equivalent circuits were developed to facilitate the analysis and envelope simulation of electric circuits driven by modulated signals. The circuits are based on a novel complex phasor domain transformation. The proposed method facilitates simulation of any general linear circuit driven by a modulated signal such as AM, FM or PM. Simulation time by the proposed envelope simulation is much faster than the full cycle-by-cycle simulation of the original circuit and excitation.