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An Efficient Finite Element Solution of Inhomogeneous Anisotropic and Lossy Dielectric Waveguides

Lu, Y; Fernandez, FA; (1993) An Efficient Finite Element Solution of Inhomogeneous Anisotropic and Lossy Dielectric Waveguides. IEEE Transactions on Microwave Theory and Techniques , 41 (6) pp. 1215-1223. 10.1109/22.238548.

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Abstract

An efficient finite element method is presented for the full wave analysis of dielectric waveguides. This method has four major features: 1) the ability to treat a wide range of dielectric waveguide problems with arbitrarily shaped cross section, inhomogeneity, transverse-anisotropy, and significant loss (or gain); 2) total elimination of spurious solutions; 3) direct solution for the (complex) propagation constant at a specified frequency; and 4) the use of only two components of the magnetic field, thus maximizing the numerical efficiency of solution. The resultant matrix eigenvalue problem is of canonical form and is solved with an efficient method, specially developed for this purpose, taking full advantage of the sparsity of the matrices. Numerical results are shown for a variety of microwave and optical waveguides including anisotropy and losses. These examples also include closed and open-bounded structures. The computational results agree very well with analytical and previously published results. © 1993 IEEE

Type: Article
Title: An Efficient Finite Element Solution of Inhomogeneous Anisotropic and Lossy Dielectric Waveguides
DOI: 10.1109/22.238548
UCL classification: UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng
URI: http://discovery.ucl.ac.uk/id/eprint/74812
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