Alternative formulation of three dimensional frequency dependent ADI-FDTD method

[摘要] References(8)Cited-By(3)An alternative formulation for a frequency dependent (FD) ADI-FDTD method is proposed, based on an electric flux field D tridiagonal matrix rather than an electric field matrix. The procedure for D source excitation is explained. Results show that the accuracy of the method is unaffected by the inclusion of frequency dependency in the model, compared with FD-FDTD.

[学科分类] 电子、光学、磁材料

[关键词] electromagnetic propagation in dispersive media;FDTD methods;transient propagation;Alternating-Direction Implicit technique;electric flux field source excitation;electric flux field absorbing boundary condition