不变性测试方程法在开边界多导体静电系统分析中的应用

Application of MEI Method in the Analysis of Unbounded Electrostatic System with Multi conductors

在“测试环”概念的基础上 ,提出了两种确定MEI系数的方法 .数值结果表明 ,利用电偶极子层激励作为测试子和自由空间格林函数作为积分核确定MEI系数的方法 ,比之其它方法具有更高的精度和明显的优点 .分析并总结了数值实验中出现的一些问题 ,使得对MEI方法的理解更深入了一步 .另外 ,对MEI方法的不稳定性和有效性也做了理论分析 .最后 ,利用本文方法计算了一个较为复杂的微带线参数 ,得到了满意的结果 .

On the basis of the novel concept “measuring ring”,two new kinds of methods are presented to determine MEI coefficients in this paper.The numerical results demonstrate that the MEI coefficients obtained using the technique,which takes dipole layer excitation as the “Metron” and the Green function in free space as the integral Kernel,are of higher precision over other techniques.The analysis and summarization of numerical experimenal results cause us to achieve a better comprehension of the MEI method.On the other hand,the instability and the validity of the MEI method are explained by using mathematical analysis approach.The parameters of complicated microstrip lines are calculated by the method here,and the results are in good agreement with those in references.