@Article{HasarBarrKaraErtu:2015:ReThBr,
author = "Hasar, U. C. and Barroso de Castro, Joaquim Jos{\'e} and
Karacali, T. and Ertugrul, M.",
affiliation = "{University of Gaziantep} and {Instituto Nacional de Pesquisas
Espaciais (INPE)} and {Ataturk University} and {Ataturk
University}",
title = "Reference-plane-invariant and thickness- and
branch-index-independent retrieval of effective parameters of
bi-anisotropic metamaterials",
journal = "AIP Advances",
year = "2015",
volume = "5",
number = "1",
pages = "017123",
month = "jan.",
abstract = "We propose a retrieval method for reference-plane-invariant
electromagnetic parameter measurements of bi-anisotropic
metamaterial slabs without resorting to accurate information of
the slab thickness and the branch index. To extract
reference-plane distances, the slab thickness, and the branch
index, we first approximate wave impedances and refractive index
away from the slab resonance frequency and then use scattering
parameters to calculate the refractive index and the branch index.
Once these quantities are determined, they are used as inputs for
the retrieval of electromagnetic properties of slabs over the
whole band. Different approximations for refractive index and wave
impedances are applied to demonstrate the applicability and
accuracy of our proposed method. We tested our method for
electromagnetic parameter extraction of bi-anisotropic
split-ring-resonator and Omega-shaped MM slabs with different
number of unit cells. From our analysis, we note that inaccurate
information of reference-plane distances, the slab length, and the
branch index not only changes the amplitude but also shifts the
response of the electromagnetic properties. We show that the
presented method can be applied for accurate electromagnetic
parameter extraction of bi-anisotropic MM slabs.",
doi = "10.1063/1.4906514",
url = "http://dx.doi.org/10.1063/1.4906514",
issn = "2158-3226",
language = "en",
targetfile = "hasar_reference.pdf",
urlaccessdate = "15 jun. 2024"
}