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Theoretical and numerical treatment of surface integrals involving the free-space Green's function

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3 Author(s)
Caorsi, P. ; DIBE, Genoa Univ., Italy ; Moreno, D. ; Sidoti, F.

This paper deals with the problem of the calculation of surface integrals for electromagnetic scattering in the case of the widely popular double-triangular basis functions first introduced by Rao, Wilton, and Glisson (1982). An entire set of formulas is obtained which overrides the difficulties inherent to the singularity of the integrands, and results showing the stability, accuracy, and efficiency of the methods developed are reported in an application of the method of moments to the case of perfectly conducting surfaces and computation of near field in domains including the surface itself. Furthermore, the authors provide insight as regards the capability of triangular basis functions to model near field patterns

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Antennas and Propagation, IEEE Transactions on  (Volume:41 ,  Issue: 9 )