FAST CONVERGING CFIE-MOM ANALYSIS OF ELECTROMAGNETIC SCATTERING FROM PEC POLYGONAL CROSS-SECTION CLOSED CYLINDERS | Zendy

Mario Lucido | Zendy; Francesca Di Murro | Zendy; G. Panariello | Zendy; Chiara Santomassimo | Zendy

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FAST CONVERGING CFIE-MOM ANALYSIS OF ELECTROMAGNETIC SCATTERING FROM PEC POLYGONAL CROSS-SECTION CLOSED CYLINDERS

Author(s) -

Mario Lucido,

Francesca Di Murro,

G. Panariello,

Chiara Santomassimo

Publication year - 2017

Publication title -

progress in electromagnetics research b

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.208

H-Index - 47

ISSN - 1937-6472

DOI - 10.2528/pierb17011803

Subject(s) - cross section (physics) , scattering , section (typography) , geometry , physics , radar cross section , mathematical analysis , mathematics , computer science , optics , quantum mechanics , operating system

The analysis of the electromagnetic scattering from perfectly electrically conducting (PEC) objects with edges and corners performed by means of surface integral equation formulations has drawbacks due to the interior resonances and divergence of the fields on geometrical singularities. The aim of this paper is to show a fast converging method for the analysis of the scattering from PEC polygonal cross-section closed cylinders immune from the interior resonance problems. The problem, formulated as combined field integral equation (CFIE) in the spectral domain, is discretized by means of Galerkin method with expansion functions reconstructing the behaviour of the fields on the wedges with a closed-form spectral domain counterpart. Hence, the elements of the coefficients’ matrix are reduced to single improper integrals of oscillating functions efficiently evaluated by means of an analytical asymptotic acceleration technique.

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