ELECTROMAGNETIC SCATTERING BY A PERIODIC SURFACE WITH A WEDGE PROFILE

被引：0
|
作者：
HILL, DA
机构：
[1] Electromagnetic Fields Division National Institute of Standards and Technology, Boulder, CO
来源：
ELECTROMAGNETICS | 1992年 / 12卷 / 3-4期
关键词：
D O I：
10.1080/02726349208908314
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：
Two-dimensional scattering from a periodic surface with a wedge profile is treated for both TE and TM polarization. The interface can be either perfectly conducting or penetrable, and the extended boundary condition (EBC) is used in both cases. The method results in simple matrix elements and is easy to apply. Comparison with a perturbation solution shows that the EBC method has greater accuracy and a greater range of validity. Even so, EBC becomes numerically ill conditioned for surface heights that are a significant fraction of the period or the wavelength. Numerical results are presented for conservation of power, and some comparisons are made with previous results for sinusoidal surfaces. Some applications to rf absorber are also presented.
引用
收藏
页码：247 / 264
页数：18
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