Title :
A new FDTD model for lightning generated EM wave simulation
Author :
Wenyi Hu ; Cummer, S.A.
Author_Institution :
Dept. of Electr. & Comput. Eng., Duke Univ., Durham, NC, USA
Abstract :
A new full-wave finite-difference time domain method (FDTD) model was developed to simulate lightning-generated electromagnetic wave propagation in the ionosphere. A new PML technique (NPML) is applied in this model, which performs better than the classic PML in this application A numerical method is used to derive the coefficients of FDTD difference equations, Dispersion relations are analyzed to investigate the error of the model and the stability conditions are discussed. Simulation results show the improvement of this new model compared with a previous version.
Keywords :
Maxwell equations; computational electromagnetics; difference equations; dispersion relations; finite difference time-domain analysis; ionospheric electromagnetic wave propagation; lightning; EM wave simulation; FDTD model; Maxwell´s equations; PML technique; cold plasma; difference equations; dispersion relations; full-wave method; ionosphere; lightning generated EM wave propagation; Difference equations; Dispersion; Electromagnetic modeling; Electromagnetic propagation; Finite difference methods; Ionosphere; Lightning; Performance analysis; Stability analysis; Time domain analysis;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2003. IEEE
Conference_Location :
Columbus, OH, USA
Print_ISBN :
0-7803-7846-6
DOI :
10.1109/APS.2003.1220094
