Proceedings of the Institution of Electrical Engineers · 1969 · 44 citations · 1 references
EngineeringElectrical EngineeringFinite Element AnalysisFinite Element MethodsPropagationDielectricsFinite Element DiscretizationFinite Element FormulationPropagation In Dielectric MediaDielectric Slab WaveguidesDielectric WaveguidesFinite Element Modeling Of WavesInhomogeneous Dielectric MediaMode PropagationSlab WaveguidesWaveguide ModesWaveguide Theory
Finite-element equations are derived for wave propagation in inhomogeneous waveguides. A variational expression is used for the wavenumber k0. A discretised finite-element equation is found at a point surrounded by four dielectrics, and special cases deduced. The method is applied to the solution of the dominant LSM mode in a dielectric-slab-loaded waveguide.
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