Title :
Vector wave equation 2-D-FDTD method for guided wave problems
Author :
Okoniewski, Michal
Author_Institution :
Dept. of Electr. & Comput. Eng., Victoria Univ., BC, Canada
Abstract :
A compact FDTD algorithm for the full wave analysis of inhomogeneous wave guiding structures, using a two dimensional mesh is proposed. The formulation is based on the vector wave equation, and in contrast with previous approaches, allows for the formulation of the algorithm in a real domain only. Moreover, since only transverse electric fields are used, two real, instead of six complex components have to be updated and stored, and since they are both defined at the same mesh nodes, the treatment of dielectric inhomogeneities is simplified. Numerical examples validating the method are presented.<>
Keywords :
electric fields; finite difference time-domain analysis; wave equations; waveguide theory; 2D method; compact FDTD algorithm; dielectric inhomogeneities; full wave analysis; guided wave problems; inhomogeneous wave guiding structures; real domain; transverse electric fields; two dimensional mesh; vector wave equation; Dielectrics; Finite difference methods; Maxwell equations; Microwave theory and techniques; Nonuniform electric fields; Partial differential equations; Rectangular waveguides; Slabs; Time domain analysis; Waveguide components;
Journal_Title :
Microwave and Guided Wave Letters, IEEE
