Analysis of a square coaxial line with anisotropic substrates by strong FEM formulation
| Autor: | Vladimir V. Petrovic, Zaklina J. Mancic |
|---|---|
| Rok vydání: | 2015 |
| Předmět: |
010302 applied physics
quasi-static analysis Mathematical analysis Isotropy Relative permittivity 020206 networking & telecommunications Basis function Geometry 02 engineering and technology 01 natural sciences Square (algebra) Finite element method 0103 physical sciences Line (geometry) square coaxial line 0202 electrical engineering electronic engineering information engineering Piecewise anisotropic dielectric General Earth and Planetary Sciences strong FEM formulation Galerkin method General Environmental Science Mathematics |
| Zdroj: | Facta universitatis-series: Electronics and Energetics (2015) 28(4):625-636 |
| ISSN: | 2217-5997 0353-3670 |
| DOI: | 10.2298/fuee1504625m |
| Popis: | In this paper the concept of the strong Finite Element Method (FEM) formulation is explained first. Next, a brief review of strong basis functions that are used for quasi-static analysis of transmission lines with piecewise homogeneous anisotropic medium is presented. As numerical examples, effective relative permittivities of square coaxial lines with two anisotropic layers or one isotropic and one anisotropic layer are calculated by using the Galerkin version of the strong FEM formulation. High accuracy of the method is demonstrated for the layer thicknesses ranging from 0 to 100% of the transmission line height. It is also shown that in the case of the half- filled line, effective relative permittivity computed by the FEM is practically equal to the one obtained by a simple formula. |
| Databáze: | OpenAIRE |
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