功率MESFET大信号非线性等效电路的谐波平衡分析

利用谐波平衡（HB）分析方法，对微波大功率MESFET管芯进行了输入，输出匹配电路设计。首先讨论了对非线性MESFET等效电路网络进行非线性与线性网络的划分方法，然后，利用所建立的GaAs MESFET非线性等效电路模型，描述了电路匹配设计的方法，步骤及计算,并且将计算结果与测量结果进行比较，结果表明，方法是成功的，具有非常重要的工程意义，为微波功率GaAs MESFET的实用化奠定了技术基础。

Analysis of Large-signal Nonlinear Model of Power MESFET by Harmonic Balance Method

In this paper, the method and detail process for designing the match circuit of the input and output of microwave power GaAs MESFET by using the harmonic balance (HB) method are discussed. At first, the way to mark the nonlinear net out from the whole nonlinear equivalent circuit net of microwave power GaAs MESFET is introduced, then the method for designing the match circuits by using the equivalent circuit model is described in detail. Finally, the calculated results are compared with the measured results. The comparison proves our method is precise and successful, it is great precticality in engineering, and it founds a firm base for the MESFET production.