Browsing by Keywords "Surface integral equations"
Now showing items 119 of 19

Accurate solutions of scattering problems involving lowcontrast dielectric objects with surface integral equations
(2007)We present the stabilization of the surface integral equations for accurate solutions of scattering problems involving lowcontrast dielectric objects. Unlike volume formulations, conventional surface formulations fail to ... 
Analysis of doublenegative materials with surface integral equations and the multilevel fast multipole algorithm
(2011)We present a fast and accurate analysis of doublenegative materials (DNMs) with surface integral equations and the multilevel fast multipole algorithm (MLFMA). DNMs are commonly used as simplified models of metamaterials ... 
Approximate Schur preconditioners for efficient solutions of dielectric problems formulated with surface integral equations
(2009)We propose direct and iterative versions of approximate Schur preconditioners to increase robustness and efficiency of iterative solutions of dielectric problems formulated with surface integral equations. The performance ... 
Comparison of integralequation formulations for the fast and accurate solution of scattering problems involving dielectric objects with the multilevel fast multipole algorithm
(Institute of Electrical and Electronics Engineers, 2009)We consider fast and accurate solutions of scattering problems involving increasingly large dielectric objects formulated by surface integral equations. We compare various formulations when the objects are discretized with ... 
Contamination of the accuracy of the combinedfield integral equation with the discretization error of the magneticfield integral equation
(Institute of Electrical and Electronics Engineers, 2009)We investigate the accuracy of the combinedfield integral equation (CFIE) discretized with the RaoWiltonGlisson (RWG) basis functions for the solution of scattering and radiation problems involving threedimensional ... 
Discretization error due to the identity operator in surface integral equations
(ELSEVIER, 20090503)We consider the accuracy of surface integral equations for the solution of scattering and radiation problems in electromagnetics. In numerical solutions, secondkind integral equations involving welltested identity operators ... 
Fast and accurate analysis of largescale composite structures with the parallel multilevel fast multipole algorithm
(Optical Society of America, 2013)Accurate electromagnetic modeling of complicated optical structures poses several challenges. Optical metamaterial and plasmonic structures are composed of multiple coexisting dielectric and/or conducting parts. Such ... 
Fast and accurate analysis of optical metamaterials using surface integral equations and the parallel multilevel fast multipole algorithm
(2013)We present fast and accurate simulations of optical metamaterials using surface integral equations and the multilevel fast multipole algorithm (MLFMA). Problems are formulated with the electric and magnetic current ... 
Fast and accurate solutions of extremely large integralequation problems discretised with tens of millions of unknowns
(The Institution of Engineering and Technology, 2007)The solution of extremely large scattering problems that are formulated by integral equations and discretised with tens of millions of unknowns is reported. Accurate and efficient solutions are performed by employing a ... 
Fast and accurate solutions of scattering problems involving dielectric objects with moderate and low contrasts
(2007)We consider the solution of electromagnetic scattering problems involving relatively large dielectric objects with moderate and low contrasts. Threedimensional objects are discretized with RaoWiltonGlisson functions and ... 
Hierarchical parallelization of the multilevel fast multipole algorithm (MLFMA)
(IEEE, 2013)Due to its O(N log N) complexity, the multilevel fast multipole algorithm (MLFMA) is one of the most prized algorithms of computational electromagnetics and certain other disciplines. Various implementations of this algorithm ... 
A hierarchical partitioning strategy for an efficient parallelization of the multilevel fast multipole algorithm
(IEEE, 2009)We present a novel hierarchical partitioning strategy for the efficient parallelization of the multilevel fast multipole algorithm (MLFMA) on distributedmemory architectures to solve largescale problems in electromagnetics. ... 
Iterative solutions of hybrid integral equations for coexisting open and closed surfaces
(IEEE, 2009)We consider electromagnetics problems involving composite geometries with coexisting open and closed conductors. Hybrid integral equations are presented to improve the efficiency of the solutions, compared to the conventional ... 
Novel electromagnetic surface integral equations for highly accurate computations of dielectric bodies with arbitrarily low contrasts
(Journal of Computational Physics, 2008)We present a novel stabilization procedure for accurate surface formulations of electromagnetic scattering problems involving threedimensional dielectric objects with arbitrarily low contrasts. Conventional surface integral ... 
Rigorous analysis of doublenegative materials with the multilevel fast multipole algorithm
(Applied Computational Electromagnetics Society, Inc., 2012)We present rigorous analysis of doublenegative materials (DNMs) with surface integral equations and the multilevel fast multipole algorithm (MLFMA). Accuracy and efficiency of numerical solutions are investigated when ... 
Scattering analysis of silver nanoparticles for solar cell applications using integral equations
(Institute of Electrical and Electronics Engineers, 2018)Plasmonic nanoparticles (NPs) can be used to improve the efficiency of solar cells. Analysis of electromagnetic scattering from NPs is often carried out under the assumptions that they reside in air and have 'ideal' shapes ... 
Solutions of large integralequation problems with preconditioned MLFMA
(2007)We report the solution of the largest integralequation problems in computational electromagnetics. We consider matrix equations obtained from the discretization of the integralequation formulations that are solved ... 
Solutions of largescale electromagnetics problems using an iterative innerouter scheme with ordinary and approximate multilevel fast multipole algorithms
(2010)We present an iterative innerouter scheme for the efficient solution of largescale electromagnetics problems involving perfectlyconducting objects formulated with surface integral equations. Problems are solved by ... 
Stabilization of integralequation formulations for the accurate solution of scattering problems involving lowcontrast dielectric objects
(Institute of Electrical and Electronics Engineers, 2008)The solution of scattering problems involving lowcontrast dielectric objects with threedimensional arbitrary shapes is considered. Using the traditional forms of the surface integral equations, scattered fields cannot ...