High-frequency scattering by objects buried in lossy media

被引：10

作者：

Bertoncini, F ^{[1
]}

Kouyoumjian, RG

Manara, G

Nepa, P

机构：

[1] Univ Pisa, Dept Elect Syst & Automat, I-56126 Pisa, Italy

[2] Ohio State Univ, Electrosci Lab, Columbus, OH 43212 USA

[3] Univ Pisa, Dept Informat Engn, I-56126 Pisa, Italy

来源：

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 2001年 / 49卷 / 12期

关键词：

uniform geometrical theory of diffraction; scattering; lossy media; rays; asymptotic methods;

D O I：

10.1109/8.982443

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 uniform geometrical theory of diffraction (UTD) is extended so that it can be used to calculate the scattering from an object buried in a lossy medium. First, the accuracy of this high frequency method is examined by comparing numerical results for the scattering by a polygonal cylinder in a lossy medium of infinite extent with calculations based on a method of moments (MoM) solution. Next, the more difficult scattering problem of a polygonal cylinder in a lossy half space is treated. The UTD solution for the unbounded region is employed together with the fields of rays introduced by the interface between air and the lossy medium to obtain expressions for the scattered field in air and in the lossy medium.

引用

页码：1649 / 1656

页数：8

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