Title :
Time-domain analysis of periodic structures at oblique incidence: orthogonal and nonorthogonal FDTD implementations
Author :
Roden, J. Alan ; Gedney, Stephen D. ; Kesler, Morris P. ; Maloney, James G. ; Harms, Paul H.
Author_Institution :
Signature Technol. Lab., Georgia Tech. Res. Inst., Atlanta, GA, USA
fDate :
4/1/1998 12:00:00 AM
Abstract :
A novel implementation of periodic boundary conditions incorporated into the finite-difference time-domain (FDTD) technique in both orthogonal and nonorthogonal grids is presented in this paper. The method applied is a field-splitting approach to the discretization of the Floquet-transformed Maxwell equations. As a result, the computational burden is reduced and the stability criterion is relaxed. The results of the two methods are compared to experimental data
Keywords :
Maxwell equations; electromagnetic wave scattering; electromagnetic wave transmission; finite difference time-domain analysis; numerical stability; time-domain analysis; FDTD implementation; Floquet-transformed Maxwell equations; discretization; field-splitting approach; finite-difference time-domain technique; nonorthogonal grids; oblique incidence; orthogonal grids; periodic boundary conditions; periodic structures; stability criterion; Boundary conditions; Finite difference methods; Geometry; Grid computing; Maxwell equations; Nonhomogeneous media; Periodic structures; Stability analysis; Stability criteria; Time domain analysis;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
