On the canonical grid method for two-dimensional scattering problems

被引：30

作者：

Johnson, JT ^{[1
]}

机构：

[1] Ohio State Univ, Dept Elect Engn, Columbus, OH 43210 USA

[2] Ohio State Univ, Electrosci Lab, Columbus, OH 43210 USA

来源：

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 1998年 / 46卷 / 03期

关键词：

electromagnetic scattering; moment methods; rough surfaces;

D O I：

10.1109/8.662647

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 banded matrix iterative approach with a canonical grid expansion (BMIA/CAG) has been shown in [1] to be an efficient method for the calculation of scattering for near planar two-dimensional (2-D) geometries such as one-dimensional rough surfaces. However, in [1], only the first three terms in the canonical grid series for TE polarization above a perfectly conducting surface were discussed and methods for implementing only a portion of these terms were presented. In this paper, a general form for all terms in the canonical grid series is provided for both TE and TM polarizations above an impedance surface and an efficient algorithm for calculating their contributions is described. The relationship between the canonical grid and operator expansion methods is also discussed. A sample surface scattering problem is shown to illustrate the utility of higher order terms in the canonical grid method.

引用

页码：297 / 302

页数：6

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