Abstract

This paper describes a mathematical model which has been adopted for the large-signal performance prediction of electron devices in the framework of Harmonic-Balance tools for circuit analysis. The model, which is technology independent, is based on look-up tables storing small-signal bias/frequency-dependent AC parameters and DC characteristics obtained by means of conventional automated measurement equipment. The large-signal dynamic device response is predicted, directly from the measured data, through a Nonlinear Integral expression. In the paper special attention will be given to practical aspects (e.g., accuracy limitations, numerical interpolation techniques, etc..,.). Experimental and simulated results which confirm the validity of the proposed modelling approach are also presented.