Analysis of inhomogeneous and anisotropic waveguides by the finite element method
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Two numerically efficient procedures for the analysis of arbitrarily-shaped inhomogeneous and anisotropic waveguides showing no spurious modes are considered. The first is based on a transverse magnetic-field formulation, while the second is straightforwardly derived from the first-order Maxwell curl equations and involves all the components of the electric and magnetic fields. In both cases, the final step, in most cases, to solve a symmetric complex generalized eigensystem. An extension of the symmetric real case to the symmetric complex case is developed in order to reduce the time consumed in the solution process.
CitacióFerrando, M. Analysis of inhomogeneous and anisotropic waveguides by the finite element method. A: Electrical Performance of Electronic Packaging. "Electrical performance of electronic packaging: October 20 - 22, 1993: Hyatt Regency Monterey, Monterey, California". Monterey: IEEE Press, 1993, p. 47-49.