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      Accurate modeling of metamaterials with MLFMA

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      Author(s)
      Ergül, Özgür
      Ünal, Alper
      Gürel, Levent
      Date
      2006
      Source Title
      Proceedings of the European Conference on Antennas and Propagation, EuCAP 2006
      Print ISSN
      0379-6566
      Publisher
      ESA Publications
      Volume
      626
      Language
      English
      Type
      Conference Paper
      Item Usage Stats
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      Abstract
      Electromagnetic modelling of large metamaterial (MM) structures employing multilevel fast multipole algorithm (MLFMA) is reported. MMs are usually constructed by periodically embedding unit cells, such as split-ring resonators (SRRs), into a host medium. Without utilizing any homogenization techniques, we accurately model large numbers of unit cells that translate into very large computational problems. By considering all of the electromagnetic interactions, the resulting dense matrix equations are solved iteratively with the accelerated matrix-vector products by MLFMA. To increase the efficiency, we also employ parallel computing in the solutions of large SRR problems.
      Keywords
      Metamaterials
      Multi-level fast multipole algorithm
      Split-ring resonator
      Band structure
      Computational methods
      Resonators
      Signal interference
      Electromagnetic modelling
      Metamaterial (MM) structures
      Permalink
      http://hdl.handle.net/11693/27231
      Collections
      • Computational Electromagnetics Research Center (BiLCEM) 84
      • Department of Electrical and Electronics Engineering 3702
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