Title :
Time-domain finite-element modeling of dispersive media
Author :
Jiao, Dan ; Jin, Jian-Ming
Author_Institution :
Dept. of Electr. & Comput. Eng., Illinois Univ., Urbana, IL, USA
fDate :
5/1/2001 12:00:00 AM
Abstract :
A general formulation is described for time-domain finite-element modeling of electromagnetic fields in a general dispersive medium. The formulation is based on the second-order vector wave equation and incorporates the dispersion effect of a medium via a recursively evaluated convolution integral. This evaluation is kept to second order in accuracy using linear interpolation within each time step. Numerical examples are given to validate the proposed formulation.
Keywords :
convolution; dispersive media; electromagnetic field theory; finite element analysis; interpolation; time-domain analysis; convolution integral; dispersive medium; electromagnetic field; linear interpolation; numerical simulation; recursive method; time domain finite element model; vector wave equation; Convolution; Dispersion; Electromagnetic fields; Electromagnetic modeling; Finite element methods; Integral equations; Interpolation; Partial differential equations; Time domain analysis; Vectors;
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/7260.923034
