Title :
A linear-operator formalism for the analysis of inhomogeneous biisotropic planar waveguides
Author :
Paiva, Carlos R. ; Barbosa, Afonso M.
Author_Institution :
Dept. de Engenharia Electrotecnica e de Computadores, Inst. Superior Tecnico, Lisboa, Portugal
fDate :
4/1/1992 12:00:00 AM
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
Keywords :
guided electromagnetic wave propagation; matrix algebra; waveguide theory; adjoint waveguide; biisotropic planar waveguides; biorthogonality relation; chiral media; grounded chiroslabguide; guided electromagnetic wave propagation; guided hybrid modes; inhomogeneous type; linear-operator formalism; matrix differential operator; nonreciprocal structures; radiation modes; reciprocal biisotropic media; self-adjoint problem; Anisotropic magnetoresistance; Eigenvalues and eigenfunctions; Electromagnetic waveguides; Equations; Geometrical optics; Optical polymers; Optical waveguides; Planar waveguides; Transmission line matrix methods; Waveguide theory;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
