Title :
Simple and efficient finite-element analysis of microwave and optical waveguides
Author :
Koshiba, Masanori ; Inoue, Kazuhiro
Author_Institution :
Dept. of Electron. Eng., Hokkaido Univ., Sapporo, Japan
fDate :
2/1/1992 12:00:00 AM
Abstract :
A simple and efficient finite-element method for the analysis of microwave and optical waveguiding problems is formulated using three components of the electric or magnetic field. In order to eliminate spurious solutions, edge elements are introduced. In the edge element approach the nodal parameters are not limited to the magnetic field as in the conventional three-component formulation for the dielectric waveguiding problem. An eigenvalue equation that involves only the edge variables in the transversal plane and can provide a direct solution for the propagation constant is derived. To show the validity and usefulness of this approach, computed results are illustrated for microstrip transmission lines and dielectric waveguides
Keywords :
dielectric waveguides; finite element analysis; optical waveguide theory; strip lines; waveguide theory; dielectric waveguides; dielectric waveguiding problem; direct solution; edge elements; edge variables; eigenvalue equation; finite-element analysis; finite-element method; microstrip transmission lines; microwave waveguides; nodal parameters; optical waveguides; propagation constant; spurious solutions elimination; transversal plane; Dielectrics; Eigenvalues and eigenfunctions; Equations; Finite element methods; Magnetic analysis; Magnetic fields; Microstrip; Microwave theory and techniques; Optical devices; Propagation constant;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
