北京大学学报(自然科学版)

不同参量的二维介质电磁带隙的反射及传输特性研究

赵小莹,周乐柱   

  1. 北京大学信息科学技术学院电子学系,北京,100871,E-mail: zxy@ele.pku.edu.cn
  • 收稿日期:2004-01-06 出版日期:2005-05-20 发布日期:2005-05-20

Theoretical Research on Reflection and Transmission Performances of 2-D Dielectric EBG Structures with Different Parameters

ZHAO Xiaoying, ZHOU Lezhu   

  1. Department of Electronics, School of Electronics Engineering and Computer Science, Peking University, Beijing, 100871, E-mail: zxy@ele.pku.edu.cn
  • Received:2004-01-06 Online:2005-05-20 Published:2005-05-20

摘要: 采用有限元和Floquet定理相结合的方法,对不同参量的二维介质电磁带隙(EBG)结构的反射和传输特性进行了研究。利用EBG的周期性以较少的计算量和存储量,计算了平面波斜入射或正入射无限排列的二维介电EBG的散射特性。比较和分析了不同参数下EBG的反射和透射系数。研究结果有助于类似结构的实际设计。

关键词: 电磁带隙, 有限元方法, 散射, Floquet定理

Abstract: The finite element method incorporated with Floquet theorem is used to solve the 2-Dimentsional scattering problem of dielectric Electromagnetic Band-Gap(EBG) upon which a plane wave is oblique or perpendicular incident. By exploiting the periodicity of EBG, the computation complexity and required memories are efficiently reduced. Comparisons of reflection and transmission properties for a kind of dielectric Electromagnetic Crystals with different structure parameters are presented, which will be helpful to the design of the similar structures.

Key words: EBG, FEM, scattering, Floquet theorem

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