Development of a wide-use computer code based on a modal expansion approach for the analysis of electromagnetic scattering problems

开发了一种用于电磁散射和衍射问题数值求解的通用计算机程序。数值分析的方法是Yasuura的模态匹配法，这是一种具有收敛性证明的严格模态展开方法。为了使没有深厚计算电磁学知识的工程师也能使用计算机代码，它配备了GUI环境：工程师可以根据显示器上的指示制定问题；并以图形或数值文件的形式得到数值分析的结果。这是一个很好的学习计算电磁学的工具。此外，由于代码是用FORTRAN和VisualBasic编写的，因此可以很容易地修改程序的一部分，使其具有适合自己特定兴趣的有效计算机代码。

A wide-use computer code is developed for the numerical solution of electromagnetic scattering and diffraction problems. The method of numerical analysis is Yasuura's mode-matching method, which is known widely as a rigorous modal expansion approach with proof of convergence. In order that an engineer without deep knowledge in computational electromagnetics can use the computer code, it is equipped with a GUI environment : the engineer is able to formulate a problem following the directions on his monitor ; and he obtains the result of numerical analysis either in graphics or in mumerical files. This works as a good educational tool for computational electromagnetics. Further, because the code is written in FORTRAN and VisualBasic, one can easily modify a part of the program to have an effective computer code for his particular interest.