TLM Z-transform method modelling of Lossy Grin MTM with different refractive index profiles | Zendy

Nebojša Dončov | Zendy; Tatjana Asenov | Zendy; Zoran Stanković | Zendy; John Paul | Zendy; Bratislav Milovanović | Zendy

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TLM Z-transform method modelling of Lossy Grin MTM with different refractive index profiles

Author(s) -

Nebojša Dončov,

Tatjana Asenov,

Zoran Stanković,

John Paul,

Bratislav Milovanović

Publication year - 2012

Publication title -

facta universitatis - series electronics and energetics

Language(s) - English

Resource type - Journals

eISSN - 2217-5997

pISSN - 0353-3670

DOI - 10.2298/fuee1202103d

Subject(s) - refractive index , metamaterial , lossy compression , tangent , matrix (chemical analysis) , transmission line , trigonometric functions , inverse trigonometric functions , mathematical analysis , mathematics , optics , materials science , physics , computer science , geometry , telecommunications , composite material , statistics

In this paper, a numerical three-dimensional (3D) model of electromagnetic left- handed metamaterials (LH MTM) is applied for the modelling of composite right-left handed (RH/LH) structures with a graded refractive index profile commonly named GRIN MTM. The core of this model is Transmission Line Matrix (TLM) Z-transform method that incorporates the Drude function to account for dispersive LH MTM properties in the time-domain. Lossy GRIN slabs with abrupt, hyperbolic tangent, cosine, and linear refractive index profiles have been considered. The accuracy, efficiency and stability of the proposed approach are verified using analytical solution.

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