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An efficient integral-equation method is presented for the fast analysis of scattering from arbitrarily shaped 3-D structures in a rectangular cavity. The proposed method employs: 1) the frequency-domain surface-volume electric field integral equation to model scattering from conductors and dielectrics; 2) the rectangular-cavity Green functions to account for the cavity walls; 3) the Ewald method...
An extension of the adaptive integral method (AIM) is presented for fast analysis of scattering from three-dimensional (3D) structures located in multiple layers of a planar layered medium. The proposed scheme accelerates the iterative method-of-moments solution by employing 3D auxiliary regular grids, each of which encloses the parts of the structure in a different layer, and 2D auxiliary regular...
This article extends the adaptive integral method (AIM) to the analysis of scattering from 3-D PEC objects fully embedded inside a single layer of a planar layered medium. Just like for the classical AIM for free-space backgrounds, first, the pertinent integral equations are discretized via the MOM; second, the impedance matrix entries are separated into nearand far-zone terms using an auxiliary regular...
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