Title :
Variational finite element analysis of dielectric waveguides with no spurious solutions
Author :
Fernandez, F.A. ; Lu, Yang
Author_Institution :
Dept. of Electron. & Electr. Eng., Univ. Coll. London, UK
Abstract :
A new variational formulation for the analysis of dielectric waveguides is presented. This formulation provides a direct solution for the propagation constant using only the transverse components of the magnetic field and avoids spurious solutions. It allows treatment of lossy anisotropic dielectrics and leads to a canonical sparse matrix eigenvalue problem.
Keywords :
dielectric-loaded waveguides; eigenvalues and eigenfunctions; finite element analysis; matrix algebra; variational techniques; waveguide theory; canonical sparse matrix eigenvalue problem; dielectric waveguides; lossy anisotropic dielectrics; magnetic field; permittivity tensor; propagation constant; transverse components; variational finite element analysis; variational formulation;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19901367
