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A new efficient hybrid technique is presented, which combines the method of moments (MoM) and the shooting and bouncing ray (SBR) for analyzing scattering of complex large structures. By applying the SBR method for the whole structures, a corrected incident field including not only the direct incident field but also the multi-bounce field from the SBR region contributes to the integral equation in...
The multilevel fast multipole algorithm (MLFMA) has been widely used in computational electromagnetics (CEM) to efficiently handle the large-scale problems. However, MLFMA belongs to the integral methods that always require strong preconditioners to achieve the final solution, especially for the ill-conditioned electric-field integral equation (EFIE). In this letter, we develop a new efficient preconditioning...
This paper introduces a new PO-MoM hybrid method based on the equivalence principle for the object that can be decomposed into different isolated parts. Each part can be solved by MoM or PO according to its local property. The unknowns on every subscatterer are transferred to its surrounding equivalent surface with a new scheme, and the intersections between different parts are also considered by...
The OpenMP-CUDA Accelerated Moment Method (MoM) for the electromagnetic scattering by 3-D arbitrarily shaped homogeneous dielectric objects is presented. In the analysis, We use multi-GPUs controlled by OpenMP to accelerate the matrix filling and solving procedure. Specially, we adopt the well-behaved threshold-based incomplete LU preconditioner (ILUT) to improve the iteration convergence. Numerical...
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