大学物理 ›› 2018, Vol. 37 ›› Issue (9): 51-55.doi: 10.16854 /j.cnki.1000-0712.180036

• 大学生园地 • 上一篇    下一篇

平面电磁波在各向异性周期介质中的传输特性研究

罗俊,唐政华,段盛   

  1. 1.湘南学院软件与通信工程学院; 2.湘南学院电子信息与电气工程学院,湖南郴州423000
  • 收稿日期:2018-01-15 修回日期:2018-04-01 出版日期:2018-09-20 发布日期:2018-09-20
  • 通讯作者: 唐政华,E-mail: tzh401@ 126.com
  • 作者简介:罗俊( 1998—) ,男,湖南邵阳人,湘南学院软件与通信工程学院2015 级本科生.
  • 基金资助:
    湖南省教育厅优秀青年项目( 16B243) ; 湖南省高校科技创新团队项目( 湘教通[2014]207 号) 资助

Propagation characteristics of plane electromagnetic waves in dielectric anisotropic periodic media

LUO Jun,TANG Zheng-hua,DUAN Sheng   

  1. 1. College of Software and Engineering,Xiangnan University,Chenzhou,Hunan 423000,China; 2. College of Electronic Information and Electrical Engineering,Xiangnan University,Chenzhou,Hunan 423000,China
  • Received:2018-01-15 Revised:2018-04-01 Online:2018-09-20 Published:2018-09-20

摘要: 将平面电磁波在一维介电各向同性周期介质中的传输矩阵问题扩展至一维介电各向异性周期介质,并得到了平面 电磁波在此类介质中的传输矩阵. 此矩阵的推导主要基于麦克斯韦方程组和电磁波在介质交界面的连续性条件,即电磁波在 介质交界面的切向电场和磁场分量连续. 通过此矩阵的推导可以加深学生对“电磁场与电磁波”这门课程的理解.此矩阵也是 获得电磁波在一维介电各向异性周期介质中的场分布特性,色散关系和表面模式性质的基础. 因此,此传输矩阵对科研和教 学都有重要意义.

关键词: 平面电磁波, 传输矩阵, 各向异性周期介质

Abstract: In this paper,the transmission matrix problem of a plane electromagnetic wave in one-dimensional dielectric isotropic periodic medium is extended to one -dimensional dielectric anisotropic periodic medium. The transmission matrix of a plane electromagnetic wave in such medium is obtained. The derivation of the matrix is mainly based on the Maxwell equations and continuity conditions of the electromagnetic wave at the interface of the medium. Namely,the tangential components of the electric field and magnetic field of the electromagnetic wave are continuous at the interface of the medium. The derivation of this matrix can deepen the students' understanding the course“Electromagnetic Field and Electromagnetic Wave”. This matrix is also the basis for obtaining the field distribution, the dispersion relation and surface mode properties of the electromagnetic wave in a one-dimensional dielectric anisotropic periodic medium. Therefore,this transmission matrix is of great significance for both scientific research and teaching.

Key words: plane electromagnetic wave, transmission matrix, anisotropic period