Spectral-Element Spectral-Integral Method for EM Scattering by Doubly Periodic Objects in Fully Anisotropic Layered Media

被引：3
作者：
Wang, Jianwen [1 ,2 ]
Liu, Jie [1 ,2 ]
Zhuang, Mingwei [1 ,2 ]
Liu, Qing Huo [3 ,4 ]
机构：
[1] Xiamen Univ, Inst Electromagnet & Acoust, Xiamen 361005, Peoples R China
[2] Xiamen Univ, Fujian Prov Key Lab Electromagnet Wave Sci & Detec, Xiamen 361005, Peoples R China
[3] Eastern Inst Technol, EIAS, Ningbo 315200, Peoples R China
[4] Xiamen Univ, Inst Electromagnet & Acoust, Xiamen 361005, Peoples R China
来源：
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES | 2023年 / 71卷 / 10期
基金：
中国国家自然科学基金;
关键词：
Numerical analysis; Anisotropic magnetoresistance; Nonhomogeneous media; Spectral analysis; Green's function methods; Electromagnetic scattering; Finite element analysis; Doubly periodic structures; fully anisotropic materials; periodic layered medium Green's function (PLMGF); plane wave; Riemann transmission condition (RTC); spectral-element spectral-integral (SESI) method; 3-D ELECTROMAGNETIC SCATTERING; TIME-DOMAIN; SESI METHOD; FDTD METHOD; EQUATIONS; RADIATION; REGIONS; ANTENNA; WAVES;
D O I：
10.1109/TMTT.2023.3263398
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 spectral-element spectral-integral (SESI) method is developed to simulate the electromagnetic (EM) scattering from doubly periodic anisotropic objects embedded in multiple regions of layered media with the fully anisotropic materials. The SESI is a hybrid method that combines the spectral-element method (SEM) and spectral-integral method (SIM), the computational domain of which is divided into several SEM and SIM subdomains. Different from our previous work, not only the SEM subdomain can be anisotropic but also the SIM subdomain can be anisotropic. This is achieved by extending the periodic layered medium Green's function (PLMGF), plane wave of layered medium, and Riemann transmission condition (RTC) in isotropic materials to those in fully anisotropic materials. Four numerical experiments validate the efficiency and accuracy of the developed SIM and SESI method compared with the finite-element method (FEM) or the analytical solver for plane wave of fully anisotropic layered medium.
引用
收藏
页码：4218 / 4226
页数：9
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