A hybrid technique combining the moment method with physical optics and uniform asymptotics for scattering from 2-D cylinders

Sullivan, Anders; Carin, Lawrence

doi:10.1002/(sici)1098-2760(19990420)21:2<117::aid-mop10>3.0.co;2-j

Cited by 2 publications

(1 citation statement)

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“…These basis functions are quite general, but for electrically large problems, they result in a very significant number of unknowns. Researchers have, within the context of MoM, developed hybrid techniques that combine subsectional basis functions with asymptotic traveling-wave and edge-diffraction basis functions [40]. The use of such basis functions substantially reduces the number of unknowns, reducing the problem size.…”

Section: Discussionmentioning

confidence: 99%

Multilevel fast-multipole algorithm for scattering from conducting targets above or embedded in a lossy half space

Geng

Sullivan

Carin

2000

IEEE Trans. Geosci. Remote Sensing

130

123

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Abstract-An extension of the multilevel fast multipole algorithm (MLFMA), originally developed for targets in free space, is presented for the electromagnetic scattering from arbitrarily shaped three-dimensional (3-D), electrically large, perfectly conducting targets above or embedded within a lossy half space. We have developed and implemented electric-field, magnetic-field, and combined-field integral equations for this purpose. The nearby terms in the MLFMA framework are evaluated by using the rigorous half-space dyadic Green's function, computed via the method of complex images. Non-nearby (far) MLFMA interactions, handled efficiently within the multilevel clustering construct, employ an approximate dyadic Green's function. This is expressed in terms of a direct-radiation term plus a single real image

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Section: Discussionmentioning

confidence: 99%