Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 11 of 11 for “"Fast Multipole Algorithm"”.
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A Multilevel Fast Multipole Algorithm for Analyzing Radiation and Scattering From Wire Antennas in a Complex Environment
… antenna and photolithography simulations. A fast field calculation based on MLFMA significantly reduces the time for computing near and far fields radiated from vehicle antennas and photomasks.
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OpenMP-CUDA implementation of the moment method and multilevel fast multipole algorithm on multi-GPU computing systems
… the method of moments (MoM) and the multilevel fast multipole algorithm (MLFMA) are implemented for GPU computation based on the hybrid OpenMP-CUDA parallel programming model. The resultant algorithms are called the OpenMP-CUDA-MoM and the OpenMP-CUDA-MLFMA, respectively. Both of the proposed …
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Fast multipole acceleration of periodic Green's function using spherical harmonics and Ewald summation
In this thesis, we present a fast multipole algorithm (FMA) for solving a periodic scattering problem using method of moments (MOM). The difference between the standard integral equations (EFIE and MFIE) and the ones used for periodic geometry is the use of periodic Green's function (PGF) over …
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Studies on Low Frequency Fast Multipole Algorithms
… is studied in the second part. A low frequency fast inhomogeneous plane wave algorithm (LF-FIPWA) is developed to overcome this issue with the transition region around 0.1 wavelength. Evanescent waves and propagating waves are both used to compensate for the accuracy lost in the conventional …
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A Study of MLFMA for Large -Scale Scattering Problems
… A parallel implementation of the multilevel fast multipole algorithm (MLFMA) was studied as far as parallel efficiency and scaling. The large-scale scattering program (LSSP), based on the ScaleME library, was used to solve ultra-large-scale problems including a 200lambda sphere with 20 …
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An enhanced augmented electric field integral equation and the calculation of casimir force using computational electromagnetics
… problem is proposed. Then a broadband multilevel fast multipole algorithm (FMA) using a hybridization of the multipole and plane wave expansions is introduced. This high-accuracy algorithm is error controllable and stable at low frequencies. It reduces to the conventional diagonal FMA at higher …
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Computational electromagnetics for microstrip and MEMS structures
… this thesis, the quasi-3D thin-stratified medium fast-multipole algorithm (TSM-FMA) will be introduced for the analysis of general microstrip structures. It is based on a newly developed matrix-friendly dyadic Green's function for layered media (DGLM), which is represented in terms of only two …
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An enhanced volume integral equation method and augmented equivalence principle algorithm for low frequency problems
… anisotropic permittivity and permeability. Two algorithms are available: conventional method of moments and reciprocity preserving method. Both of them are applied to both the permittivity and permeability terms. Curl-conforming edge elements are used to model the electric field distributions. …
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Fast algorithm and surface integral equations for two-dimensional materials modeling
… dissertation, a wide-band two-dimensional (2D) fast multipole algorithm (FMA) with a novel diagonalization form is presented. The conventional diagonalization of 2D FMA can be derived based on the interpretation of Parseval's theorem. The performance of FMA in the twilight zone (between the …
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Multi-solver schemes for electromagnetic modeling of large and complex objects
… focuses on the development of numerical algorithms for electromagnetic modeling of large and complex objects. First, a GPU-accelerated multilevel fast multipole algorithm (MLFMA) is presented to improve the efficiency of the traditional MLFMA by taking advantage of GPU hardware …
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A study on computational electromagnetics problems with applications to casimir force calculations
This work covers two main subjects, the efficient calculation of the dyadic Green's function for layered media (DGLM) and the calculation of the Casimir force using computational electromagnetics (CEM). The calculation of the DGLM is desirable for many problems that involve stratified media, like …