Title :
Rapid FDTD simulation without time stepping
Author :
Cangellaris, Andreas C. ; Zhao, Li
Author_Institution :
Dept. of Electr. & Comput. Eng., Illinois Univ., Urbana, IL, USA
fDate :
1/1/1999 12:00:00 AM
Abstract :
A numerical methodology is presented for fast broad-band extraction of the electromagnetic properties of passive waveguiding structures. The methodology combines the standard finite-difference time-domain (FDTD) method with a nonsymmetric Lanczos eigenvalue algorithm to extract a reduced-order model of the electromagnetic response over the frequency range of interest. The implementation of the algorithm is such that each iteration is computationally equivalent to the update of the electromagnetic fields in the FDTD algorithm. However, no time stepping is required
Keywords :
eigenvalues and eigenfunctions; electromagnetic fields; finite difference time-domain analysis; iterative methods; waveguide theory; electromagnetic fields; electromagnetic properties; electromagnetic response; iteration; nonsymmetric Lanczos eigenvalue algorithm; passive waveguiding structures; rapid FDTD simulation; reduced-order mode; Conductivity; Eigenvalues and eigenfunctions; Finite difference methods; Frequency response; Function approximation; Laplace equations; Permeability; Reduced order systems; Time domain analysis; Transmission line matrix methods;
Journal_Title :
Microwave and Guided Wave Letters, IEEE
