An Iterative Hybrid JMCFIE-MSIE-PO Method for Analyzing EM Scattering From Complex Target Above Rough Surface

被引:0
作者
Zou, Gao Xiang [1 ]
Tong, Chuang Ming [1 ]
Sun, Hua Long [1 ]
Peng, Peng [1 ]
Song, Tao [1 ]
机构
[1] Air Force Engn Univ, Xian 710051, Peoples R China
来源
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2021年 / 20卷 / 05期
基金
中国国家自然科学基金;
关键词
Dielectrics; Surface roughness; Rough surfaces; Conductors; Electromagnetic scattering; Integral equations; Surface treatment; Combined field integral equation; complex target; multilevel fast multipole algorithm; physical optics; rough surface; single integral equation; SINGLE INTEGRAL-EQUATION; ELECTROMAGNETIC SCATTERING;
D O I
10.1109/LAWP.2021.3051431
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
An iterative hybrid method is proposed for analyzing the electromagnetic (EM) scattering from complex target above rough surface. First, the electric/magnetic current-combined field integral equation (JMCFIE) is formulated to calculate the EM scattering from the complex target combining conductor and multiple dielectric objects. Then, the single integral equation (SIE) method for multiple dielectric objects in the complex target (MSIE) is applied to reduce one-half of the unknowns in dielectric regions, and the hybrid JMCFIE-MSIE method is formulated. Afterward, physical optics (PO) approximation is employed for computing the EM scattering on the rough surface, and the iterative hybrid based on the combination of JMCFIE-MSIE and PO is derived for composite scattering from complex target above rough surface. Furthermore, the multilevel fast multipole algorithm is utilized to accelerate the matrix-vector multiplications in the computation process. The equivalent edge currents method is applied to meliorate the result. Finally, the validation and applicability of the proposed iterative solution are demonstrated by several numerical examples.
引用
收藏
页码:633 / 637
页数:5
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