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Surface Wave Propagation In A Dielectric Waveguide Loaded With An Anisotropic, Conductive, And Spatially Dispersive Substrate, Tushar Andriyas

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This thesis presents an analytical treatment of surface waves inside a dielectric slab loaded with a conductive and spatially dispersive semiconductor-like substrate. The work is primarily focused on the modelling of the substrate and getting the field solutions out from the Helmholtz equation. Appropriate boundary conditions have been used in order to get a unique dispersion relation. The surface wave modes are then extracted from the relation by using a root-searching algorithm, which in this work is the MATLAB Genetic Algorithm toolbox. Many different substrate configurations have been considered, starting from the very basic isotropic case to the most complex …