A COMBINED FEM/MOM APPROACH TO ANALYZE THE PLANE-WAVE DIFFRACTION BY ARBITRARY GRATINGS

被引：54

作者：

GEDNEY, SD ^{[1
]}

LEE, JF ^{[1
]}

MITTRA, R ^{[1
]}

机构：

[1] UNIV ILLINOIS,DEPT ELECT & COMP ENGN,ELECTROMAGNET LAB,URBANA,IL 61801

来源：

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES | 1992年 / 40卷 / 02期

关键词：

D O I：

10.1109/22.120110

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The diffraction of TE- and TM-polarized plane waves by planar gratings is numerically analyzed using a combined FEM/MoM algorithm based on the generalized network formulation. The interior region, treated using the FEM, is truncated to a single unit cell with the introduction of an exact periodic boundary condition, which is enforced as a natural boundary condition. By employing the finite element method to compute the fields within the periodic structure, gratings of arbitrary cross section and material composition can be efficiently modeled.

引用

页码：363 / 370

页数：8