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Very accurate computation of the impedance elements on the discretization of the magnetic field integral equation with the orthogonal basis functions
Tamayo Palau, José María; Úbeda Farré, Eduard; Polimeridis, Athanasios G.; Rius Casals, Juan Manuel; Mosig, Juan Ramón
Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions; Universitat Politècnica de Catalunya. ANTENNALAB - Grup d´Antenes i Sistemes Radio
We show a novel integrating technique, the direct evaluation method, that provides maximum accuracy in the computation of the MFIE-interactions between neighboring noncoplanar basis functions sharing an edge or a vertex of the discretization. Unlike the previous techniques, this strategy requires no extraction of quasi-singular terms from the Kernel and accounts for both inner- and outer-integrals. We show that the recently proposed discretization of the MFIE with orthogonal facet-oriented basis functions provide best accuracy in the RCS computation of objects with small electrical dimensions when compared with other conventional basis functions sets.
Peer Reviewed
Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica
Electromagnetism -- Mathematics
Numerical electromagnetism
Moments method (Statistics)
Magnetic-field integral equation
Electromagnetisme -- Matemàtica
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