Hp. Urbach et Esam. Lepelaars, ON THE DOMAIN INTEGRAL-EQUATION METHOD FOR ANISOTROPIC INHOMOGENEOUS WAVE-GUIDES, IEEE transactions on microwave theory and techniques, 42(1), 1994, pp. 118-126
The domain integral equation method for anisotropic inhomogeneous diel
ectric waveguides is derived, and the spectral properties of the integ
ral operator are discussed. It is explained why spurious modes do not
occur when the Galerkin method is applied to the domain integral equat
ion. Furthermore, the convergence of the method is discussed.