应用科学学报 ›› 2010, Vol. 28 ›› Issue (5): 533-539.doi: 10.3969/j.issn.0255-8297.2010.05.014

• 电子技术 • 上一篇    下一篇

改进的自适应区域分解FDTD在波导结构中的应用

孟令琴1;2, 李鹏1;2   

  1. 1. 上海大学通信学院,上海200072
    2. 东南大学毫米波国家重点实验室,南京210096
  • 收稿日期:2010-05-19 修回日期:2010-08-29 出版日期:2010-09-26 发布日期:2010-09-26
  • 作者简介:孟令琴,副研究员,研究方向:射频系统及单片集成电路,E-mail:menglq@shu.edu.cn
  • 基金资助:

    上海市科委项目基金(No.09511500300);上海市重点学科建设项目基金(No. S30108)资助

Application of Improved Adaptive Domain Decomposition FDTD in Waveguide Analysis

MENG Ling-qin1;2, LI Peng1;2   

  1. 1. School of Communication and Information Engineering, Shanghai University, Shanghai 200072, China
    2. State Key Laboratory of Millimeter Waves, Southeast University, Nanjing 210096, China
  • Received:2010-05-19 Revised:2010-08-29 Online:2010-09-26 Published:2010-09-26

摘要:

摘要: 提出了一种改进的自适应区域分解时域有限差分(improved adaptive domain decomposition finite difference time domain, IADD-FDTD)算法. 这种算法通过对检测面上的电压值进行自适应边界检测,消除了检测面上电场值不稳定而带来的计算误差. 该算法还可得到更多的分区,提高了计算速度. 通过对多种不连续波导结构的应用分析,验证了这种算法的正确性和有效性.

关键词: 自适应区域分解, 时域有限差分法, 边界检测, 不连续波导结构

Abstract:

This article presents improved adaptive domain decomposition finite difference time domain(IADDFDTD).We apply adaptive boundary test to the voltage on the boundary. The new algorithm avoids computational error caused by instability of electric field intensity on test boundaries, and can get more sub-domains
than the original ADD-FDTD and enhance computation speed. Analysis on applications of waveguide discontinuities indicates correctness and effectiveness.

Key words: adaptive domain decomposition, FDTD, boundary testing, waveguide discontinuities

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