一种新的微波场效应管等效电路参数提取方法

本文提出一种改进的模拟退火算法，其特点是采用有效的参数边界压缩方法和最优解跟踪技术，并在Ｍｅｔｒｏｐｏｌｉｓ抽样中引入高效率的多变量均匀试验，从而使计算量大幅度降低。我们已将该算法用于微波场效应管等效电路参数提取，实际计算表明，本算法要比Ｇ．Ｂｉｌｂｒｏ等人提出的树退火算法及梯度－树退火混合算法有较高效率，所需参数提取时间要少得多。

A Novel Method for Extracting Equivalent Circuit Parameters of Microwave FETs

An improved simulated annealing method is presented.The method is based on adjusting and compressing the parameter bounds, following the tracks of optimal point and introducing the uniform experiment into Metropolis procedure.The method presented here has been successfully applied to the extraction of the parameters of equivalent circuits of microwave FETs.It is evident from optimization results that this approach is less time consuming and more efficient than the tree annealing and hybrid gradient descent and tree annealing approach.