Abstract
A problem of normal electromagnetic oscillation modes in a rectangular waveguide with bi-isotropic inclusions having rectangular cross sections is formulated and solved. Analytical expressions for virtual currents caused by the presence of inclusions are derived by the method of natural modes. For isotropic inclusions, the convergence of the propagation constant of the principal mode, calculated by the method of normal modes, to its exact value is demonstrated with increasing number of basic functions.
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Kostyuk, L.Y., Meshcheryakov, V.A. & Mudrov, A.E. Method of Normal Modes for Modeling of the Electromagnetic Processes in Waveguide Structures Filled with Bi-Isotropic Media. Russian Physics Journal 45, 621–628 (2002). https://doi.org/10.1023/A:1021111705291
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DOI: https://doi.org/10.1023/A:1021111705291