本文运用电荷控制分析方法,提出了GaAs MESFET以电荷源为基本组成元件的大信号非线性动态模型.该模型在解决了电荷不守恒问题以及DC与RF电流不一致性问题的同时,结合器件的温度特性与自升温效应,实现了GaAs MESFET的准二维大信号动态分析.

This paper presents a nonlinear dynamic large-signal model for GaAs MESFETs with charge sources as elements by way of charge-control methodology.Besides solving the problems of charge non-conservation and current non-consistency under DC and RF conditions,the model realizes the quasi-two-dimensional dynamic analysis considering the temperature characteristics and self-heating effect.