FDTD结合最小二乘拟合法分析PBG滤波结构
Analysis of Microstrip PBG Filter Structures Using FDTD with Least Square Fitting Method
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摘要: 为了能应用FDTD方法快速有效地分析各种PBG滤波结构电磁特性，该文应用FDTD结合最小二乘拟合法对两类新型PBG滤波结构进行了具体分析，给出了FDTD结合最小二乘拟合法计算的最小迭代步数和如何选出谐振段去除振荡原则，最后通过数值仿真结果，表明该方法能有效减少FDTD的迭代步数，节省计算时间，特别适用于大周期和复杂的PBG滤波结构分析。
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关键词:
- FDTD;最小二乘拟合法;PBG滤波结构
Abstract: In this paper, the FDTD with least square fitting method is used to calculate the S parameters of PBG filter structures, Furthermore, the least square fitting method is employed combined with FDTD to reduce the iterative steps. To show the accuracy of the method, a simulated result is given in the latter part of the paper and various comparisons are made for such a demonstration. -
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