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EFFICIENT SOLUTIONS OF METAMATERIAL PROBLEMS USING A LOW-FREQUENCY MULTILEVEL FAST MULTIPOLE ALGORITHM
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Date
2010-01-01
Author
Ergül, Özgür Salih
Gurel, L.
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We present fast and accurate sloutions of electromagnetics problems involving realistic metamaterial structures using a lowfrequency multilevel fast multipole algorithm (LF-MLFMA). Accelerating iterative solutions using robust preconditioning techniques may not be sufficient to reduce the overall processing time when the ordinary high-frequency MLFMA is applied to metamaterial problems. The major bottleneck, i.e., the low-frequency breakdown, should be eliminated for efficient sloutions. We show that the combination of an LF-MLFMA implmentation, we demonstrate how the transmission properties of metamaterial walls can be enhanced with randomly-oriented unit cells.
Subject Keywords
Electrical and Electronic Engineering
,
Radiation
,
Condensed Matter Physics
URI
https://hdl.handle.net/11511/44224
Journal
PROGRESS IN ELECTROMAGNETICS RESEARCH-PIER
DOI
https://doi.org/10.2528/pier10071104
Collections
Department of Electrical and Electronics Engineering, Article