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Extraction of effective metamaterial parameters by parameter fitting of dispersive models
Author(s) -
Lubkowski G.,
Schuhmann R.,
Weiland T.
Publication year - 2007
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.22105
Subject(s) - metamaterial , permittivity , parameterized complexity , microwave , slab , lorentz transformation , relative permeability , computational physics , drude model , materials science , physics , optics , computer science , optoelectronics , algorithm , dielectric , classical mechanics , porosity , composite material , quantum mechanics , geophysics
Effective electric permittivity and magnetic permeability for metamaterial structures are extracted from 3D field simulation data. The equivalent representation of the metamaterial is a homogeneous slab described with parameterized dispersive Drude and Lorentz models. The parameters of dispersive models are obtained by optimization. Proposed approach is applied to the extraction of effective material parameters for double negative metamaterial cells. © 2006 Wiley Periodicals, Inc. Microwave Opt Technol Lett 49: 285–288, 2007; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.22105