FDTD-Diakoptics时域模函数分析

杨争光; 苏东林; 李梅; 吕善伟

FDTD-Diakoptics时域模函数分析

北京航空航天大学电子信息工程学院, 北京 100083

基金项目: 国家自然科学基金资助项目(69971005); 优青教基金资助项目; 骨干教师基金资助项目; 航空基金资助项目(99F51096)

详细信息

作者简介:
杨争光(1977-),男,山东烟台人,博士生, yzg369@sohu.com.

中图分类号: TN 401
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出版历程
- 收稿日期: 2003-03-19
- 网络出版日期: 2004-07-31

Analysis of time-domain modes in FDTD-diakoptics

School of Electronics and Information Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, China

摘要

摘要: 时域模函数的选取是使用Diakoptics技术分析微波结构的一个重要步骤.二维贝塞尔函数系作为Diakoptics技术应用于开放式微波结构中的时域模函数是适宜的.将一维傅里叶-贝塞尔函数展开定理扩展到二维,对二维傅里叶-贝塞尔函数系的完备正交性进行了分析证明,从而阐述了贝塞尔函数系作为时域模函数的有效性.最后比较采用二维傅立叶－贝塞尔函数系做模函数的FDTD-Diakoptics计算结果与传统FDTD计算结果,二者吻合良好.
- 微波电路 /
- 贝塞尔函数 /
- 有限差分法 /
- 时域模
Abstract: 　　It is very important to choose proper time domain modes when microwave structures were analyzed by time domain Diakoptics. Two dimensional Bessel functions is proper time domain modes in time domain Diakoptics. One dimensional Bessel functions expand theorem was extended to two dimensional, the completeness and orthotropic of two dimensional Bessel functions were proved. Based on analysis of electromagnetic field distributions for such open microwave structures as coplanar strips, the zero and one order Bessel functions were proved to be the proper time domain mode functions. The results of this method and the finite difference time domain (FDTD) were compared and there are good sameness between them.
- microwave circuits /
- Bessel functions /
- finite difference methods /
- time-domain modes

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参考文献(1)

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