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The 2-level adaptive integral method is represented in this paper. Two level grids and two level boxes are built for calculating relatively nearer interaction and relatively farer interaction. This algorithm can be used to calculate larger object than the AIM. The last numerical result suggests that the proposed method is efficient and accurate.
For electrically large complex electromagnetic (EM) scattering problems, huge memory is often required for most EM solvers, which is too difficult to be handled by a personal computer (PC) even a workstation. Although the multilevel fast multipole algorithm (MLFMA) effectively deals with electrically large problems to some extent, it is still time and memory consuming for very large objects. In order...
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