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      • Department of Electrical and Electronics Engineering
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      Fast and accurate analysis of complicated metamaterial structures using a low-frequency multilevel fast multipole algorithm

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      Author
      Ergül, Özgür
      Gürel, Levent
      Date
      2009-09
      Source Title
      Proceedings of the 2009 International Conference on Electromagnetics in Advanced Applications, ICEAA '09
      Pages
      1078 - 1081
      Language
      English
      Type
      Conference Paper
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      Abstract
      We present efficient solutions of electromagnetics problems involving realistic metamaterial structures using a low-frequency multilevel fast multipole algorithm (LF-MLFMA). Ordinary implementations of MLFMA based on the diago-nalization of the Green's function suffer from the low-frequency breakdown, and they become inefficient for the solution of metamaterial problems dis-cretized with very small elements compared to the wavelength. We show that LF-MLFMA, which employs multipoles explicitly without diagonalization, significantly improves the solution of metamaterial problems in terms of both processing time and memory. © 2009 IEEE.
      Keywords
      Accurate analysis
      Diagonalizations
      Electromagnetics
      Low frequency
      Low-frequency breakdown
      Metamaterial structures
      Multi-level fast multi-pole algorithm
      Multipoles
      Processing Time
      Differential equations
      Electromagnetism
      Green's function
      Metamaterials
      Permalink
      http://hdl.handle.net/11693/28675
      Published Version (Please cite this version)
      http://dx.doi.org/10.1109/ICEAA.2009.5297789
      Collections
      • Computational Electromagnetics Research Center (BiLCEM) 85
      • Department of Electrical and Electronics Engineering 3524
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