| 二维开口腔体填充多层各向异性介质TM波散射特性分析 |
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| 引用本文： | 金本喜,周平.二维开口腔体填充多层各向异性介质TM波散射特性分析[J].安徽师范大学学报(自然科学版),2007,30(2):132-135,141. |
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| 作者姓名： | 金本喜 周平 |
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| 作者单位： | 淮阴师范学院,物理系,江苏,淮安,223001;淮阴师范学院,物理系,江苏,淮安,223001 |
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| 基金项目： | 江苏省教育厅自然科学基金 |
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| 摘 要： | 应用区域分解法(DDM)结合有限元(FEM)和边界积分法(BIM)分析了填充多层各向异性介质二维开口腔体TM波散射特性.对腔体外区域采用边界积分法进行分析,将腔体内的每层介质作为一个子域用有限元法分析,各子域间通过传输条件进行耦合.作为算例,分别计算了腔体中填充各向同性和各向异性介质时的散射截面,数值结果表明了该方法的有效性.采用这种技术,大大地减少了对计算机内存的需求.
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| 关 键 词： | 区域分解法 有限元法 边界积分法 各向异性介质 电磁散射 雷达散射截面 |
| 文章编号： | 1001-2443（2007）02-0132-04 |
| 收稿时间： | 2006-10-13 |
| 修稿时间： | 2006-10-13 |
Analysis of TM Wave Scattering Property by a Two-dimensional Open Cavity Filled with Multilayer Anisotropic Dielectric |
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| JIN Ben-xi,ZHOU Ping.Analysis of TM Wave Scattering Property by a Two-dimensional Open Cavity Filled with Multilayer Anisotropic Dielectric[J].Journal of Anhui Normal University(Natural Science Edition),2007,30(2):132-135,141. |
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| Authors: | JIN Ben-xi ZHOU Ping |
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| Abstract: | A domain decomposition method(DDM) and finite element method(FEM)/boundary integral method(BIM) are combined to analyze TM wave scattering property by two-dimensional open cavity filled with multiplayer anisotropic dielectric. The boundary integral method is applied for analyzing electromagnetic field outside the cavity.Each kind of dielectric in the cavity is regarded as a subdomain and analyzed by finite element method.Coupling of different subdomains is achieved through the transmission condition at the interface.As the verification example,radar cross section(RCS) by two-dimensional open cavity filled with isotropic dielectric and anisotropic dielectric are calculated,respectively.Numerical results demonstrate its accuracy and efficiency.In this way,the required computer memory is greatly reduced. |
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| Keywords: | domain decomposition method finite element method boundary integral method anisotropic dielectric electromagnetic scattering radar cross section(RCS) |
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