用变量变换伽辽金法求解梯形截面脊形光波导本征值问题 |
|
| [摘要] |
| 本文运用变量变换伽辽金法对具有梯形截面脊形光波导的本征模式特性作了分析。这种方法将电磁场开域问题变换成一个有界区域的问题，从而避免了边界截断，又由于这种方法所导致的矩阵阶数也不大，所以要求计算机内存和计算时间均较少。这种方法可以应用于梯形斜边任意坡度角的情况。数值计算结果与已发表的实验结果吻合较好。所给出的模场分布以及结构参数对波导传输特性影响的许多结果可用于光波导的设计和研制。 |
| [英文摘要] |
| The mode dispersion characteristics and cut-off properties of rib waveguide with trapezoidal cross section are investigated. The method to be chosen is the variable transformed Galerkin′s method. In this method,the open region is transformed into closed region. Consequently,the boundary truncation is not necessary. The order of the matrix resulted from this method is small. As a result ,this method requires less computer memory and time. In addition,it does not impose any limitation on the sloped angle of the trapezoid. Computed results are in good agreements with the previously published experimental ones. The field patterns and other results presented in this paper may be used in the analysis and design of optical waveguides. |
| [关键词] |
| 梯形截面脊形光波导，伽辽金法，数值模分析 |
| [作者] |
| 秦卫平 方大纲 |
| [作者单位] |
| 南京理工大学电子工程与光电技术学院，南京 210094;南京理工大学电子工程与光电技术学院，南京 210094;School of Electronic Engineering and Optoelectronic Technology Nanjing University of Science and Technology,Nanjing 210094;School of Electronic Engineering and Optoelectronic Technology Nanjing University of Science and Technology,Nanjing 210094; |
| [刊名] |
| 微波学报 |
| [英文刊名] |
| JOURNAL OF MICROWAVES |
| [期刊类别] |
| 无线电电子学与电信技术 |
| [年 卷 期] |
|
2000 16 03 点击免费下载论文：用变量变换伽辽金法求解梯形截面脊形光波导本征值问题 |