A linear-operator formalism for the analysis of inhomogeneousbiisotropic planar waveguides |
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| Authors: | Paiva CR Barbosa AM |
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| Institution: | Dept. de Engenharia Electrotecnica e de Computadores, Inst. Superior Tecnico, Lisboa; |
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| Abstract: | Using the theory of linear operators, guided electromagnetic wave propagation in inhomogeneous (nonreciprocal) biisotropic planar structures is analyzed in terms of a 2×2 matrix differential operator. Based on the concept of adjoint waveguide, a new biorthogonality relation for the guided hybrid modes is derived. For the special case of reciprocal biisotropic media or chiral media, the linear-operator formalism leads to a self-adjoint problem. As an application example, a general analysis of the radiation modes of a grounded chiroslabguide is also presented |
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