Unified split-step precise integration timedomain method for dispersive media
Unified split-step precise integration timedomain method for dispersive media
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DOI：
10.1049/el.2013.2101
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发表时间：
2013-08
影响因子：
1.1
通讯作者：
Qi Liu;Xihui Ma;Feng Chen
中科院分区：
文献类型：
--
作者：
Qi Liu;Xihui Ma;Feng Chen
Based on the use of auxiliary differential equations, a unified split-step precise integration time-domain (SS-PITD) method is proposed for modelling wave propagation in linear dispersive media. The unification of this method is achieved by using a general expression to represent the Debye, Lorentz and Drude dielectric medium models. Moreover, due to the introduction of the SS scheme, the original two-dimensional (2D) or 3D electromagnetic problem reduces to a set of 1D sub-problems which can be efficiently solved by using the conventional PITD algorithm. It leads to a great reduction in the requirement of computation time and storage space. The proposed method is verified with a numerical example and compared with the finite-difference time-domain method.
