Título:
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Volumetric testing parallel to the boundary surface for a nonconforming discretization of the electric-field integral equation
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Autor/a:
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Úbeda Farré, Eduard; Rius Casals, Juan Manuel; Heldring, Alexander; Sekulic, Ivan
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Otros autores:
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Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions; Universitat Politècnica de Catalunya. ANTENNALAB - Grup d'Antenes i Sistemes Radio |
Abstract:
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Abstract:
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The volumetric monopolar-RWG discretization of the electric-field integral equation (EFIE) imposes no continuity constraint across edges in the surface discretization around a closed conductor. The current is expanded with the monopolar-RWG set and the electric field is tested over a set of tetrahedral elements attached to the boundary surface. This scheme is facet-oriented and therefore, well suited for the scattering analysis of nonconformal meshes or composite objects. The observed accuracy, though, is only competitive with respect to the RWG-discretization for a restricted range of heights of the tetrahedral elements. In this communication, we introduce a novel implementation of the volumetric monopolar-RWG discretization of the EFIE with testing over a set of wedges. We show with RCS and near-field results that this scheme offers improved accuracy for a wider range of heights than the approach with tetrahedral testing. The application of the wedge testing to the even-surface odd-volumetric monopolar-RWG discretization of the EFIE, edge-oriented and therefore less versatile, shows similar accuracy as with tetrahedral testing, which is a sign of robustness. |
Abstract:
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Peer Reviewed |
Materia(s):
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-Àrees temàtiques de la UPC::Matemàtiques i estadística::Equacions diferencials i integrals -Àrees temàtiques de la UPC::Energies::Energia elèctrica::Electricitat -Radial basis functions -Integral equations -Electric fields -Basis functions -Electric-field integral equation (EFIE) -Integral equations -Moment method -Equacions integrals -Camps elèctrics |
Derechos:
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Tipo de documento:
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Artículo - Versión presentada Artículo |
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