低通滤波器的源程序，计算低通阶跃高低阻抗形式，由指标来确定高低阻抗的长度-Source of low-pass filter to calculate the level of resistance in the form of low-pass step by the indicators to determine the length of high and low impedance

作为场分析法电路阻抗匹配设计软件很方便，可免去很复杂的数值计算-Very convenient, as the field analysis circuit impedance matching design software can be removed from the complex numerical calculation

基于散射算法的接收天线的建模，包括天线结构的构成，阻抗矩阵的生成以及表面电流的计算，仿真了偶极子天线、缝隙天线及蝴蝶结天线。-Scattering algorithm based on receiving antenna modeling, including the composition of the antenna structure, generation and computing surface current impedance matrix, simulation of the