Browsing by Subject "Transmission problems"

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    MLFMA solutions of transmission problems Involving realistic metamaterial walls
    (IEEE, 2007-08) Ergül, Özgür; Ünal, Alper; Gürel, Levent
    We present the solution of multilayer metamaterial (MM) structures containing large numbers of unit cells, such as split-ring resonators. Integral-equation formulations of scattering problems are solved iteratively by employing a parallel implementation of the multilevel fast multipole algorithm. Due to ill-conditioned nature of the problems, advanced preconditioning techniques are used to obtain rapid convergence in the iterative solutions. By constructing a sophisticated simulation environment, we accurately and efficiently investigate large and complicated MM structures. © 2007 IEEE.