文献类型：期刊文献

英文题名：FDTD application of targets electromagnetic scattering in layered space

作者：Yan-Nan, Jiang[1] Si-Xin, Zhu[2] Bin, Wang[3] Xin-Hua, Yu[1]

第一作者：Yan-Nan, Jiang

通信作者：Bin, W.

机构：[1] Guangxi Experiment Center of Information Science, Guilin University of Electronic Technology, Guilin 541004, China; [2] North China University of Water Resources and Electric Power, Zhengzhou 450011, China; [3] Research Institutes of Subtropical Forestry, Chinese Academy of Forestry, Fuyang 311400, China

年份：2013

卷号：11

期号：12

起止页码：7682-7688

外文期刊名：Telkomnika - Indonesian Journal of Electrical Engineering

收录：EI(收录号：20134616987948)

语种：英文

外文关键词：Algorithms - Electromagnetic fields - Finite difference time domain method - Maxwell equations

摘要：Finite Difference Time Domain (FDTD) was used to characterize the electromagnetic scattering (EMS) for targets in layered space. A new set of 1D modified Maxwell equations and auxiliary equations with incident angle was derived from 2D Maxwell equations and was used to compute the electromagnetic field in vertical boundary in 2D total field-scattered field (TF/SF), and thus incidence of uniform plane wave in time domain can be directly realized. In order to avoid complex Somerfield integration, the reciprocity theorem was used to simplify an extrapolation algorithm. Then the proposed algorithm and program in this paper were validated by applying them to compute the electromagnetic scattered field for targets in half-space and the radiation field for line current in layered lossy space. Finally this algorithm was used to characterize EMS for a tunnel in multi-layered space, for a tunnel open to vehicle, and for a tunnel and vehicle in lossless layered space. The results show the vehicle has a great impact on the scattering field, and the layered media surrounded the target can shield the scattering. ? 2013 Universitas Ahmad Dahlan.