| 用MoM－CGM－FFT分析二维电磁散射问题 |
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| 引用本文： | 张晨新,洪伟,陈忆元,漆一宏,王积勤. 用MoM－CGM－FFT分析二维电磁散射问题[J]. 电子学报, 1994, 0(12) |
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| 作者姓名： | 张晨新 洪伟 陈忆元 漆一宏 王积勤 |
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| 作者单位： | 东南大学国家毫米波重点实验室 |
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| 摘 要： | 本文提出一种ＭｏＭ－ＣＧＭ－ＦＦＴ（矩量法－共轭梯度法－快速富立叶变换）的混合技术来分析任意截面和非均匀介质柱的做射问题。该方法是以等效电流作为未知函数进行求解。该方法适应世广，是一种求解电磁散射问题的简单途径。由于应用了ＣＧＭ－ＦＦＴ技术，降低了所需计算机内存和ＣＰＵ时间，可以有效地处理电子尺寸的柱体散射和非均匀介质柱的散射，本文给出的数据和准确结果相比较，吻合好。
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| 关 键 词： | 电磁散射，柱体，矩量法，共轭梯度法，快速富立叶变换 |
The Application of MoM-CGM-FFT to Two-dimensional EM Scattering |
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| ZHang Chenxin, Hong Wei, Chen Yiyuan, Qi Yihong, Wang Jiqin. The Application of MoM-CGM-FFT to Two-dimensional EM Scattering[J]. Acta Electronica Sinica, 1994, 0(12) |
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| Authors: | ZHang Chenxin Hong Wei Chen Yiyuan Qi Yihong Wang Jiqin |
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| Abstract: | A mixed technique of moment method(MoM),conjugate gradient method(CGM) and fast Fourier transform(FFT) is presented to deal with the electromagnetic scattering of cylinders,which have arbitrary cross-sections and are composed of conductor or inhomogeneors dielectric. This methed is based on collocation technique in which eqnivalent current is considered as unknown function. CGM and FFT technique are used for reducing storage and CPU time, therefore electrically large cylinders of abitrary cross-sections and imhomogeneous permittivity can be handled simply and effectively. The numerical results for dielectric rectangular cylinder,circular and conducting cylinder are in agreement with classic results or results given in other papers. |
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| Keywords: | Electromagnetic scattering Cylinder MoM CGM FFT |
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