Modelling of LF Ground-wave Propagation at Short Distances Based on 2-D cylindrical-coordinate FDTD Method

摘要：

FDTD algorithm based on 2-D cylindricalcoordinate is used to investigate LF ground-wave propagation over lossy ground paths due to a vertical current element source at short distances.In this paper,100kHz LF signal is taken for an example and the numerical model is verified by comparing its results for LF propagation attenuation with corresponding data generated by the classical methods.The results of FDTD and theoretical formulas all agree very well.It demonstrates that the FDTD method can be used in the computation of LF groundwave propagation.Since FDTD results include all effects of wave propagation,such as reflection,diffraction,surface wave excitation,and backscattering,it may make FDTD the technique of the future.

作者: Li-li Zhou Xiao-li Xi Ning-mei Yu Yu-rong Pu

作者单位: Department of Electric Engineering,Xian University of TechnologyJin Hua South Road 5＃,Xian Shaan x Department of Electric Engineering,Xian University of Technology Jin Hua South Road 5＃,Xian Shaan

会议类型: 国际会议

会议名称: 第八届电磁理论、天线及传播国际研讨会

会议地点: 昆明

会议语种:英文

在线出版日期: 2008-11-01（万方平台首次上网日期，不代表论文的发表时间）