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A Higher Order B-Splines 1-D Finite Element Analysis of Lossy Dispersive Inhomogeneous Planar Layers | ||
| AUT Journal of Electrical Engineering | ||
| مقاله 3، دوره 49، شماره 1، شهریور 2017، صفحه 19-22 اصل مقاله (3.97 M) | ||
| نوع مقاله: Research Article | ||
| شناسه دیجیتال (DOI): 10.22060/eej.2016.823 | ||
| نویسندگان | ||
| A. Hatamkhani* ؛ A. Ghorbani | ||
| Electrical Engineering Department, Amirkabir University of Technology (Tehran polytechnic), Tehran, Iran | ||
| چکیده | ||
| In this paper we propose an accurate and fast numerical method to obtain scattering fields from lossy dispersive inhomogeneous planar layers for both TE and TM polarizations. A new method is introduced to analyze lossy Inhomogeneous Planar Layers. In this method by applying spline based Galerkin’s method of moment to scalar wave equation and imposing boundary conditions we obtain reflection and transmission from inhomogeneous layer. Moreover we obtain both electric and magnetic fields in the inhomogeneous layers. The method employs a set of spline-harmonic basis functions and leads to one-dimensional integrals for system matrix elements. This fact along with the higher order nature of the basis functions provides an accurate method for the analysis of the aforementioned dispersive lossy inhomogeneous layers. The accuracy and the convergence behavior of the method are studied through several numerical examples and the results are compared with the exact solutions to establish the validity of the proposed method. | ||
| کلیدواژه‌ها | ||
| Nonhomogeneous media؛ B-Splines؛ Dispersive media؛ Galerkin’s method؛ Transmission and Reflection | ||
| مراجع | ||
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[10] A. Hatamkhani and E. Khodapanah., “effect of substrate dielectric inhomogeneity in the dispersion characteristics of a microstrip lines,” Microw. Opt. Tech. Letters, Vol. 56, No. 8, pp.1819–1822, August 2014
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[14] C. de Boor, A Practical Guide to Splines, New York: Springer-Verlag,1978. | ||
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