Scattering of EM Waves From Random Surfaces With Different Contrast and Surface Roughness

被引：0
|
作者：
Nazari, Mohsen Eslami [1 ]
Huang, Weimin [1 ]
机构：
[1] Mem Univ Newfoundland, Dept Elect & Comp Engn, St John, NF, Canada
来源：
2021 INTERNATIONAL APPLIED COMPUTATIONAL ELECTROMAGNETICS SOCIETY SYMPOSIUM (ACES) | 2021年
基金：
加拿大自然科学与工程研究理事会;
关键词：
EM scattering; random rough surface; Neumann boundary conditions; method of moments (MoM);
D O I：
10.1109/ACES53325.2021.00066
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：
In this paper, a solution for electromagnetic (EM) scattering over a two-dimensional random rough surface with large roughness height and different contrast based on the generalized functions approach is proposed. By assuming pulsed dipole antenna and a two-dimensional Gaussian surface distribution with different root mean square heights and correlation lengths, the scattered E-field and the radar cross-section are calculated for the Neumann boundary conditions. A numerical evaluation of the solution using the method of moments (MoM) indicates that the proposed solution is better than the small perturbation method (SPM) and Kirchhoff approximation (KA) for different roughness heights and contrast media.
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