Study on the Dispersion Characteristics of PBG Structure Consisting of Anisotropic Medium by Using PSTD Method

BAO Xiu-long; ZHANG Wen-xun; LI Le-wei

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Study on the Dispersion Characteristics of PBG Structure Consisting of Anisotropic Medium by Using PSTD Method

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- Study on the Dispersion Characteristics of PBG Structure Consisting of Anisotropic Medium by Using PSTD Method
- Acta Electronica Sinica Vol. 31, Issue 12, Pages: 1761-1764(2003)
- 作者机构：
  
  1. 东南大学毫米波国家重点实验室,江苏,南京,210096
  2. 新加坡国立大学,新加坡
  3. 东南大学毫米波国家重点实验室江苏南京,210096
  4. 新加坡国立大学新加坡
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN011
- Published：2003
- 稿件说明：
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BAO Xiu-long, ZHANG Wen-xun, LI Le-wei. Study on the Dispersion Characteristics of PBG Structure Consisting of Anisotropic Medium by Using PSTD Method[J]. Acta Electronica Sinica, 2003, 31(12): 1761-1764.
DOI：

BAO Xiu-long, ZHANG Wen-xun, LI Le-wei. Study on the Dispersion Characteristics of PBG Structure Consisting of Anisotropic Medium by Using PSTD Method[J]. Acta Electronica Sinica, 2003, 31(12): 1761-1764. DOI：

摘要

本文采用时域伪谱(PSTD)法分析复杂媒质中的光子带隙(PBG)结构

建立了电磁波色散特性的统一数学模型

经数值计算绘出色散曲线.在各向同性媒质情况下所得的曲线

与时域有限差分法及平面波展开法的结果相一致.在各向异性媒质情况下

能展宽原各向同性媒质PBG结构的第一阻带、并增多阻带条数.

Abstract

The formulation of PBG structure consisting of complex(including anisotropic

bi-isotropic and bi-anisotropic)medium is modeled by using pseudo-spectral time-domain method

and then employed for calculating the dispersion curves.The numerical results show that in the case of isotropic medium

the dispersion curves are in good agreement with that from FDTD method and also plane wave expansion method;in the case of anisotropic medium

the dispersion curves form a wider first stop-band and more stop-bands of higher order.

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