FDTD Analysis of Electromagnetic Scattering Sheet Using Surface Impedance Method

被引：0
|
作者：
Chakarothai, Jerdvisanop [1 ]
Takeya, Kazuma [2 ]
Shibayama, Jun [2 ]
Suzuki, Yukihisa [3 ]
Fujii, Katsumi [1 ]
机构：
[1] Natl Inst Informat & Commun Technol, Tokyo 1848795, Japan
[2] Hosei Univ, Tokyo 1848584, Japan
[3] Tokyo Metropolitan Univ, Tokyo 1920397, Japan
来源：
2024 IEEE INTERNATIONAL WORKSHOP ON ANTENNA TECHNOLOGY, IWAT | 2024年
关键词：
scattering; surface impedance; FDTD method; LAPLACE TRANSFORM;
D O I：
10.1109/iWAT57102.2024.10535863
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：
Electromagnetic scattering sheet (EMSS) is a structure which can diffuse an incoming EM field to many different directions. EMSS can be configured with a specific combination of perfectly electric conductor (PEC) and perfectly magnetic conductor (PMC). To analyze the EMSS, collocation of both electric and magnetic fields at the medium surface is required, which is not compatible with the conventional FDTD method. To address this problem, the fast inverse Laplace transform and Prony method is applied to incorporate the surface impedance of an electric conductor with sigma = 58x10(10) S/m to model a PEC while a PMC is modeled by enforcing the magnetic field at the medium surface to be zero. Validation of the PEC modeling is confirmed from 1D simulation results. Scattering cross section of the EMSS is calculated and compared with the result obtained by the method of moments.
引用
收藏
页码：245 / 246
页数：2
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