Departments
Now showing items 116 of 16

Accurate solutions of extremely large integralequation problems in computational electromagnetics
(IEEE, 201302)Accurate simulations of reallife electromagnetics problems with integral equations require the solution of dense matrix equations involving millions of unknowns. Solutions of these extremely large problems cannot be ... 
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 ... 
Computational study of scattering from healthy and diseased red blood cells
(Society of Photo Optical Instrumentation Engineers, 20100805)We present a comparative study of scattering from healthy red blood cells (RBCs) and diseased RBCs with deformed shapes. Scattering problems involving threedimensional RBCs are formulated accurately with the electric and ... 
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 ... 
Design and simulation of circular arrays of trapezoidaltooth logperiodic antennas via genetic optimization
(Electromagnetics Academy, 2008)Circular arrays of logperiodic (LP) antennas are designed and their operational properties are investigated in a sophisticated simulation environment that is based on the recent advances in computational electromagnetics. ... 
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 ... 
Efficient solution of the electric and magnetic current combined‐field integral equation with the multilevel fast multipole algorithm and block‐diagonal preconditioning
(WileyBlackwell Publishing, Inc., 200912)We consider the efficient solution of electromagnetics problems involving dielectric and composite dielectricmetallic structures, formulated with the electric and magnetic current combinedfield integral equation (JMCFIE). ... 
Efficient solution of the electricfield integral equation using the iterative LSQR algorithm
(Institute of Electrical and Electronics Engineers, 2008)In this letter, we consider iterative solutions of the threedimensional electromagnetic scattering problems formulated by surface integral equations. We show that solutions of the electricfield integral equation (EFIE) ... 
Efficient solutions of metamaterial problems using a lowfrequency multilevel fast multipole algorithm
(2010)We present fast and accurate solutions of electromagnetics problems involving realistic metamaterial structures using a lowfrequency multilevel fast multipole algorithm (LFMLFMA). Accelerating iterative solutions using ... 
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 ... 
Hierarchical parallelisation strategy for multilevel fast multipole algorithm in computational electromagnetics
(The Institution of Engineering and Technology, 2008)A hierarchical parallelisation of the multilevel fast multipole algorithm (MLFMA) for the efficient solution of largescale problems in computational electromagnetics is presented. The tree structure of MLFMA is distributed ... 
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 ... 
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 ... 
Twostep lagrange interpolation method for the multilevel fast multipole algorithm
(Institute of Electrical and Electronics Engineers, 2009)We present a twostep Lagrange interpolation method for the efficient solution of largescale electromagnetics problems with the multilevel fast multipole algorithm (MLFMA). Local interpolations are required during aggregation ...