A Unified Approach for Treatment of Frequency-Dependent Materials in FDTD Method

被引：0
|
作者：
Chakarothai, Jerdvisanop [1 ]
Fujii, Katsumi [1 ]
机构：
[1] Natl Inst Informat & Commun Technol, 4-2-1 Nukui Kitamachi, Koganei, Tokyo 1848795, Japan
来源：
2019 INTERNATIONAL SYMPOSIUM ON ANTENNAS AND PROPAGATION (ISAP 2019) | 2019年
关键词：
MODELS; PROPAGATION; ADULT;
D O I：
暂无
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：
This paper presents a unified and efficient approach for treatment of frequency-dependent materials in the finite-difference time-domain (FDTD) method by performing fast inverse Laplace transform to find the time-domain impulse response of frequency-dependent quantities such as electric and magnetic susceptibility. Then, Prony's method is applied to extract parameters to be directly incorporate into the FDTD formulation. Examples of applying the proposed method to dielectric and magnetic materials are demonstrated and numerically validated.
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页数：3
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