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本文在提出一个新的二段非线性２ＤＥＧ模型的基础上，建立了ＨＥＭＴ的静态和高频解析模型．对交流波动方程采用Ｂｅｓｓｅｌ函数法得到精确解．由直流特性和表征高频特性的参数和实验数据的比较表明，本模型与实验符合得相当好．
In this paper, a new two-stage nonlinear 2DEG model is proposed, and a static and high-frequency analytical model of HEMT is established. The Bessel function method is used to get the exact solution to the AC wave equation. The comparison between the DC characteristics and the parameters characterizing the high frequency characteristics and the experimental data shows that this model is in good agreement with the experiment.