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Título:
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Volumetric testing for a nonconforming discretization in method of moments of the electric-field surface integral equation
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Autor/a:
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Úbeda Farré, Eduard; Rius Casals, Juan Manuel; Heldring, Alexander
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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 |
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Abstract:
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Implementations in Method of Moments of the Electric-Field Integral Equation (EFIE) are traditionally carried out with divergence-conforming sets, with normal continuity of the current across edges. This gives rise to awkward implementations around junctions in composite dielectric objects. Also, RWG-implementations of the Combined-Field Integral Equation for sharp-edged objects suffer from some loss of accuracy. In this paper, we present a new nonconforming discretization of the EFIE, with no continuity requirements across edges. In the generation of the impedance elements, we employ a volumetric testing over a set of tetrahedral elements attached to the meshed surface to let the hyper-singular Kernel contributions numerically manageable. We show that the decomposition of the current into normally-continuous and discontinuous contributions leads to enhanced accuracy in the computed RCS. |
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Abstract:
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Peer Reviewed |
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Materia(s):
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-Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica
-Dialectrics
-Integral equations
-Electric impedance
-Dielectrics
-Face
-Integral equations
-Junctions
-Method of moments
-Surface impedance
-Testing
-Equacions integrals
-Ones electromagnètiques |
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Derechos:
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Tipo de documento:
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Artículo - Versión publicada
Objeto de conferencia |
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