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介质体电磁散射分析中的等效偶极矩法 被引量：2

Equivalent Dipole-Moment Method for Dielectric Electromagnetic Scattering Analysis
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摘要 在介质体电磁散射分析中,提出了一种基于等效偶极矩法的快速矩阵生成技术。该方法以矩量法和RWG基函数为基础,将源点处的电(磁)流等效为电(磁)偶极子,因而阻抗矩阵元素可以认为是源点电(磁)偶极子所产生的近区场与场点电流基函数之间的相互作用。这样等效偶极矩法避免了格林函数二重积分,使得阻抗矩阵元素的生成速度明显提高。数值结果表明该方法有较高的计算效率和精度。 This paper presents an efficient method for the generation of MOM matrix based on equivalent dipole-moment method for dielectric electromagnetic scattering analysis.Based on the RWG basis function which is defined in the method of moment（MOM）,the electric and magnetic surface currents of the source point can be equivalence as electric and magnetic dipole-moment,respectively,then the matrix elements can be thought as the reaction of the fields produced by the equivalent dipoles with the current basis function of the filed point.Therefore the equivalent dipole-moment method avoids the double integration of gradient of Green function and speeds up the forming of MOM matrix significantly.Numerical results show that it has less computation cost and high accuracy compared with MOM.
作者 郁超 袁家德 顾长青
机构地区 南京航空航天大学信息科学与技术学院
出处 《微波学报》 CSCD 北大核心 2010年第2期26-29,共4页 Journal of Microwaves
基金 航空基金办公室与南京航空航天大学联合资助项目(2008ZA52006)
关键词 矩量法 PMCHW方程 等效偶极矩法 MOM PMCHW equation Equivalent dipole-moment method
分类号 O441.4 [理学—电磁学]
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参考文献14

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共引文献3

同被引文献10

  • 1孙玉发,张奕,徐善驾,陈学佺.二维多导体柱电磁散射特性的特征基函数法分析[J].电波科学学报,2006,21(2):229-232. 被引量：8
  • 2ITO Y, AMEYA M. Unidirectional UWB Array Antenna Using Leaf-shaped Bowtie Elements and Flat Reflector [ J ]. Electronics Letters,2008,44 ( 1 ) :9 - 11.
  • 3MAO Shau-gang, CHEN C M, et al. Modeling of Slow- wave EBG Structure for Printed-bowtie Antenna Array [J]. IEEE Antennas and Wireless Propagation Letters, 2002,1 (1) :124 - 127.
  • 4LIN Y,TSAI S. Analysis and Design of Broadside-coupled Striplines-fed Bowtie Antennas [ J]. IEEE Trans. Anten- nas and Propagation, 1998,46 ( 3 ) :459 - 460.
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  • 6PRAKASH V V S,MITTRA R. Characteristic Basis Func- tion Method: A new Technique for Efficient Solution of Method of Moments Matrix Equations [ J]. Microwave and Optical Technology Letters ,2003,36 ( 2 ) :95 - 100.
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  • 8MAASKANT R, MITTRA R. Fast Analysis of Large An- tenna Arrays Using the Characteristic Basis Function Method and the Adaptive Cross Approximation algorithm [J]. IEEE Trans. Antennas and Propagation, 2008, 56(11) :3 440 -3 451.
  • 9孙玉发,岳玫君.二维电大尺寸目标电磁散射特性的特征基函数法分析[J].安徽大学学报（自然科学版）,2008,32(1):32-35. 被引量：2
  • 10詹毅,梁昌洪,方广有,苑洪伟.近地面平面蝶形偶极天线模拟及应用[J].电波科学学报,2000,15(2):134-138. 被引量：4

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2010年 第2期

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