An efficient method-of-moments formulation is proposed for the analysis of planar structures in the presence of azimuthally symmetric fields. Boundary integral equations are derived for TM and TE polarizations, assuming as a reference structure a metal plate with a finite number of concentric annular slots placed above a stratified medium. The equations are discretized with a Galerkin testing scheme in the Fourier-Bessel domain, adopting suitable sub-domain basis functions that ensure a very rapid convergence of the involved spectral integrals. Numerical validation is provided by comparison with state-of-art simulation software, considering planar antennas with omnidirectional radiation patterns, in order to show the accuracy of the proposed formulation.

Spectral Method of Moments for Planar Structures With Azimuthal Symmetry / DI RUSCIO, David; Burghignoli, Paolo; Baccarelli, Paolo; Comite, Davide; Galli, Alessandro. - In: IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION. - ISSN 0018-926X. - STAMPA. - 62:4(2014), pp. 2317-2322. [10.1109/tap.2014.2302831]

Spectral Method of Moments for Planar Structures With Azimuthal Symmetry

DI RUSCIO, DAVID;BURGHIGNOLI, Paolo;BACCARELLI, Paolo;COMITE, DAVIDE;GALLI, Alessandro
2014

Abstract

An efficient method-of-moments formulation is proposed for the analysis of planar structures in the presence of azimuthally symmetric fields. Boundary integral equations are derived for TM and TE polarizations, assuming as a reference structure a metal plate with a finite number of concentric annular slots placed above a stratified medium. The equations are discretized with a Galerkin testing scheme in the Fourier-Bessel domain, adopting suitable sub-domain basis functions that ensure a very rapid convergence of the involved spectral integrals. Numerical validation is provided by comparison with state-of-art simulation software, considering planar antennas with omnidirectional radiation patterns, in order to show the accuracy of the proposed formulation.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11573/542014
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