FDTD結(jié)合最小二乘擬合法分析PBG濾波結(jié)構(gòu)
Analysis of Microstrip PBG Filter Structures Using FDTD with Least Square Fitting Method
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摘要: 為了能應(yīng)用FDTD方法快速有效地分析各種PBG濾波結(jié)構(gòu)電磁特性，該文應(yīng)用FDTD結(jié)合最小二乘擬合法對(duì)兩類(lèi)新型PBG濾波結(jié)構(gòu)進(jìn)行了具體分析，給出了FDTD結(jié)合最小二乘擬合法計(jì)算的最小迭代步數(shù)和如何選出諧振段去除振蕩原則，最后通過(guò)數(shù)值仿真結(jié)果，表明該方法能有效減少FDTD的迭代步數(shù)，節(jié)省計(jì)算時(shí)間，特別適用于大周期和復(fù)雜的PBG濾波結(jié)構(gòu)分析。
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關(guān)鍵詞:
- FDTD;最小二乘擬合法;PBG濾波結(jié)構(gòu)
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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