Determination of effective constitutive parameters of inhomogeneous metamaterials with bianisotropy
Küçük Resim Yok
Tarih
2018
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Institute of Electrical and Electronics Engineers Inc.
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
A recursive algorithm is proposed to accurately extract the electromagnetic parameters of isotropic/bianisotropic metamaterial (MM) slabs of inhomogeneous structures. The algorithm is based on the recursive calculations of measured/ simulated forward and backward scattering (S-) parameters from previously extracted wave impedances and refractive indices of each homogeneous layer (except the analyzed intermediate layer) by a suitable retrieval method. There are two main advantages of our proposed method over existing extraction algorithms. First, it could retrieve the electromagnetic parameters of both isotropic and bianisotropic MM slabs. Second, it is applicable for electromagnetic parameter extraction of inhomogeneous structures. For validation of our method and assessing its accuracy over existing extraction methods, we used the simulation results of various inhomogeneous structures constructed by different isotropic/bianisotropic MM slabs (split-ring-resonator (SRR), SRR-wire, omega, and omega-wire). For completeness, the effects of noise present in S-parameters and iterative error (by increasing the value of iteration numbers) are examined to test the robustness of the proposed algorithm. © 1963-2012 IEEE.
Açıklama
Anahtar Kelimeler
Bianisotropic, constitutive parameters, inhomogeneous, metamaterials (MMs), recursive algorithm, retrieval, Couplings, Extraction, Forward scattering, Iterative methods, Metamaterials, Refractive index, Ring gages, Scattering parameters, Bianisotropic, Constitutive parameters, Electromagnetic scattering, Electromagnetics, inhomogeneous, Nonhomogeneous media, Recursive algorithms, retrieval, Slabs, Parameter estimation, Bianisotropic, constitutive parameters, inhomogeneous, metamaterials (MMs), recursive algorithm, retrieval, Couplings, Extraction, Forward scattering, Iterative methods, Metamaterials, Refractive index, Ring gages, Scattering parameters, Bianisotropic, Constitutive parameters, Electromagnetic scattering, Electromagnetics, inhomogeneous, Nonhomogeneous media, Recursive algorithms, retrieval, Slabs, Parameter estimation
Kaynak
IEEE Transactions on Microwave Theory and Techniques
WoS Q Değeri
Q1
Scopus Q Değeri
Q1
Cilt
66
Sayı
8
