计算物理 ›› 2005, Vol. 22 ›› Issue (3): 261-263.

• 研究论文 • 上一篇    下一篇

C2V群寻基在矩量法求解二维电磁散射问题中的应用

朱峰, 赵柳   

  1. 西南交通大学电气工程学院, 四川 成都 610031
  • 收稿日期:2003-12-01 修回日期:2004-08-03 出版日期:2005-05-25 发布日期:2005-05-25
  • 作者简介:朱峰(1963-),男,安徽颖上,教授,博士,从事电磁理论及计算电磁场方面的研究,西南交通大学电气工程学院电工电子系610031.
  • 基金资助:
    国家自然科学基金(No.60241001)资助项目

Basic Functions in the Method of Moment for 2D Electromagnetic Scatterings

ZHU Feng, ZHAO Liu   

  1. College of Electrical Engineering, Southwest Jiaotong University, Chengdu 610031, China
  • Received:2003-12-01 Revised:2004-08-03 Online:2005-05-25 Published:2005-05-25

摘要: 针对横截面为双轴对称特征的散射柱,确定以柱各边的中心点共计4个群变换对称点,以此构成4个自然对称基函数.根据二维对称物体的对称特点构造出对称变换群,继而确定出该变换群的正规表示,将正规表示进行约化,根据所约化出的不可约表示,进而确定出以上述4个自然对称基的线性组合的线性独立归一的完备基,计算结果表明,以该基函数级数展开来描述散射体表面电流,具有收敛速度快、计算精度高等特点.

关键词: 群, 电磁散射, 基函数, 矩量法

Abstract: The basic functions in the method of moment (MoM) for 2D electromagnetic (EM) scattering problems that is symmetric about X-axis and Y-axis are obtained with the represention theory of finite group.We construct the group and get its regular representations.The tentative functions according to the four center symmetric positions are shown.While the regular representation is transformed into an irreducible one,orthonormal basic functions composed of the tentative functions are obtained.

Key words: group, electromagnetic scattering, basic functions, MoM

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