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      Combined-field solution of composite geometries involving open and closed conducting surfaces 

      Ergül, Özgür; Gürel, Levent (IEEE, 2005-04)
      Combined-field integral equation (CFIE) is modified and generalized to formulate the electromagnetic problems of composite geometries involving both open and closed conducting surfaces. These problems are customarily ...
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      Effective preconditioners for large integral-equation problems 

      Malas, Tahir; Ergül, Özgür; Gürel, Levent (IET, 2007-11)
      We consider effective preconditioning schemes for the iterative solution of integral-equation methods. For parallel implementations, the sparse approximate inverse or the iterative solution of the near-field system enables ...
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      Iterative solution of composite problems with the combined-field integral equation 

      Ergül, Özgür; Gürel, Levent (IEEE, 2007)
      We consider the solution of electromagnetic problems related to microwave applications involving composite geometries with coexisting open and closed conductors. Combined-field integral equation is introduced on the closed ...
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      Solution of large-scale scattering problems with the multilevel fast multipole algorithm parallelized on distributed-memory architectures 

      Ergül, Özgür; Gürel, Levent (IEEE, 2007)
      We present the solution of large-scale scattering problems involving three-dimensional closed conducting objects with arbitrary shapes. With an efficient parallelization of the multilevel fast multipole algorithm on ...
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      Improving the accuracy of the surface integral equations for low-contrast dielectric scatterers 

      Ergül, Özgür; Gürel, Levent (IEEE, 2007)
      Solutions of scattering problems involving low-contrast dielectric objects are considered by employing surface integral equations. A stabilization procedure based on extracting the non-radiating part of the induced currents ...
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      Parallel-MLFMA solution of CFIE discretized with tens of millions of unknowns 

      Ergül, Özgür; Gürel, Levent (Institution of Engineering and Technology, 2007)
      We consider the solution of large scattering problems in electromagnetics involving three-dimensional arbitrary geometries with closed surfaces. The problems are formulated accurately with the combined-field integral ...
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      On the accuracy of MFIE and CFIE in the solution of large electromagnetic scattering problems 

      Ergül, Özgür; Gürel, Levent (ESA Publications, 2006)
      We present the linear-linear (LL) basis functions to improve the accuracy of the magnetic-field integral equation (MFIE) and the combined-field integral equation (CFIE) for three-dimensional electromagnetic scattering ...
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      Hybrid CFIE-EFIE solution of composite geometries with coexisting open and closed surfaces 

      Ergül, Özgür; Gürel, Levent (IEEE, 2005)
      The combined-field integral equation (CFIE) is employed to formulate the electromagnetic scattering and radiation problems of composite geometries with coexisting open and closed conducting surfaces. Conventional formulations ...
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      Preconditioned MLFMA solution of multiple dielectric-metallic composite objects with the electric and magnetic current combined-field integral equation (JMCFIE) 

      Ergül, Özgür; Gürel, Levent (IEEE, 2009-06)
      We consider fast and accurate solutions of scattering problems involving multiple dielectric and composite dielectric-metallic structures with three-dimensional arbitrary shapes. Problems are formulated rigorously with the ...
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      Efficient solution of the combined-field integral equation with the parallel multilevel fast multipole algorithm 

      Gürel, Levent; Ergül, Özgür (IEEE, 2007-08)
      We present fast and accurate solutions of large-scale scattering problems formulated with the combined-field integral equation. Using the multilevel fast multipole algorithm (MLFMA) parallelized on a cluster of computers, ...
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      Ergül, Özgür (27)
      Gürel, Levent (27)Malas, Tahir (8)Ünal, Alper (3)Yavuz, Ç (1)Keywords
      Integral equations (27)
      Electromagnetic scattering (10)Electromagnetic wave scattering (10)Electromagnetism (10)Iterative methods (10)Parallel algorithms (7)Computational electromagnetics (6)Iterative solutions (6)Multilevel fast multipole algorithm (MLFMA) (6)Magnetism (5)... View MoreDate Issued2007 (15)2009 (3)2004 (2)2005 (2)2003 (1)2006 (1)2010 (1)2011 (1)2013 (1)Type
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