A new method in characterizing the nonlinear current model of MESFETs using single-tone excitation

This paper presents a novel technique for extracting the two-dimensional Taylor series coefficients of a MESFET. Unknown coefficients are determined from harmonic power measurement using a single-tone excitation. The FET is operated in a quasi-common-gate configuration which allow coefficients to be extracted with enhanced accuracy. For comparison, coefficients obtained by the proposed method and a two-tone approach are given.