FDTD Method for Wave Propagation in Havriliak-Negami Media based on Fractional Derivative Approximation

被引：0
|
作者：
Antonopoulos, Christos S. [1 ]
Kantartzis, Nikolaos V. [1 ]
Rekanos, Ioannis [1 ]
机构：
[1] Aristotle Univ Thessaloniki, Dept Elect & Comp Engn, GR-54124 Thessaloniki, Greece
来源：
2016 IEEE CONFERENCE ON ELECTROMAGNETIC FIELD COMPUTATION (CEFC) | 2016年
关键词：
Dispersive media; finite-difference methods; fractional calculus; Havriliak-Negami media; wave propagation;
D O I：
暂无
中图分类号：
TP301 [理论、方法];
学科分类号：
081202 ;
摘要：
A finite-difference time-domain (FDTD) method for simulating wave propagation in Havriliak-Negami (HN) dispersive media is presented. In an HN medium, the polarization relation is a fractional differential equation, whose numerical treatment results in significant memory storage demands due to the nonlocality of the fractional differential operator. However, by an appropriate approximation of the fractional differential operator, an FDTD scheme with reasonable memory requirements is feasible.
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