Title :
Novel cylindrical finite-difference time-domain schemes for transient electromagnetic simulations in unbounded, dispersive regions
Author :
Teixeira, F.L. ; Chew, W.C.
Author_Institution :
Dept. of Electr. & Comput. Eng., Illinois Univ., Urbana, IL, USA
Abstract :
Three-dimensional (3-D) finite-difference time-domain (FDTD) schemes for transient simulation of electromagnetic wave propagation in complex (inhomogeneous, dispersive and conductive) media and cylindrical coordinates are presented. The schemes incorporate an extension of the perfectly matched layer (PML) absorbing boundary condition (ABC) to 3-D cylindrical coordinates. Dispersion in the media is incorporated through the use of piecewise-linear recursive convolution (PLRC). Numerical simulation results are included
Keywords :
dispersive media; electromagnetic wave absorption; electromagnetic wave propagation; electromagnetic wave scattering; finite difference time-domain analysis; piecewise linear techniques; transient analysis; 3D cylindrical coordinates; EM wave propagation; PML ABC; PML absorbing boundary condition; complex media; conductive media; cylindrical 3D FDTD schemes; dispersive media; electromagnetic simulations; finite-difference time-domain schemes; inhomogeneous media; perfectly matched layer; piecewise-linear recursive convolution; transient EM simulations; unbounded dispersive regions; Boundary conditions; Convolution; Dispersion; Electromagnetic propagation; Electromagnetic transients; Finite difference methods; Nonhomogeneous media; Perfectly matched layers; Piecewise linear techniques; Time domain analysis;
Conference_Titel :
Microwave and Optoelectronics Conference, 1999. SBMO/IEEE MTT-S, APS and LEOS - IMOC '99. International
Conference_Location :
Rio de Janeiro
Print_ISBN :
0-7803-5807-4
DOI :
10.1109/IMOC.1999.866140
