Research on FDTD-based dielectric loaded trapezoid ridged waveguide

Gao Yuan; Chen Xiaoqiang; Li Jianbing

doi:10.13756/j.gtxyj.2012.02.019

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Research on FDTD-based dielectric loaded trapezoid ridged waveguide

- Research on FDTD-based dielectric loaded trapezoid ridged waveguide
- Study on Optical communication Issue 2, Pages: 45-47(2012)
- 作者机构：
  
  兰州交通大学自动化与电气工程学院
- 作者简介：
- 基金信息：
- DOI：10.13756/j.gtxyj.2012.02.019
  CLC： TN814
- Published：2012，
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[1]高原,陈小强,李建兵.基于时域有限差分法填充介质梯形脊波导研究[J].光通信研究,2012(02):45-47.

Gao Yuan, Chen Xiaoqiang, Li Jianbing. Research on FDTD-based dielectric loaded trapezoid ridged waveguide. [J]. (2):45-47(2012)
[1]高原,陈小强,李建兵.基于时域有限差分法填充介质梯形脊波导研究[J].光通信研究,2012(02):45-47. DOI： 10.13756/j.gtxyj.2012.02.019.

Gao Yuan, Chen Xiaoqiang, Li Jianbing. Research on FDTD-based dielectric loaded trapezoid ridged waveguide. [J]. (2):45-47(2012) DOI： 10.13756/j.gtxyj.2012.02.019.

摘要

为了研究填充介质对脊波导截止特性的影响

文章采用FDTD（时域有限差分）法计算了填充介质梯形双脊波导在TE（横电波）模式下的截止特性随几何尺寸的变化

并给出了关系曲线。结果表明

脊间距越小

填充介质的相对介电常数越大

截止波长越长

单模带宽越窄。研究结果丰富了现存填充介质波导数据

有助于填充介质波导的设计和工程应用。

Abstract

In order to study the impact of the filled medium on the cutoff characteristics of ridged waveguides

this paper calculates the variations of the cutoff characteristics of dielectric loaded trapezoid symmetric double-ridge waveguides in the TE mode with the geometric dimensions by using the FDTD method

and gives their relation curve.The results show that the smaller the ridge gap

the greater the relative dielectric constant of the filled medium and the longer the cutoff wavelength

the narrower the single mode bandwidth.These results enrich the existing data of dielectric loaded waveguides and contribute to their design and engineering applications.

关键词

时域有限差分法截止特性填充介质脊波导截止波长单模带宽

Keywords

FDTD methodcutoff characteristicsdielectric loaded waveguidecut-off wavelengthsingle-mode bandwidth

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