3D System of Randomly Detuned Ring Resonators

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F16%3A00302864" target="_blank" >RIV/68407700:21230/16:00302864 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

3D System of Randomly Detuned Ring Resonators

Popis výsledku v původním jazyce

A homogenization procedure aimed at analyzing a metamaterial designed as a system composed of point magnetic dipoles is presented in this paper. These dipoles represent broad side coupled split ring resonators and/or conducting loops terminated by capacitors. A non-precise fabrication process causes dispersion of the geometrical and material parameters of the resonators, and thus dispersion of their resonance frequencies. The homogenization procedure takes into account random distribution of resonator resonance frequencies with the normal probability distribution. The resonant band of the effective permeability of the metamaterial is significantly widened, the values of both real and imaginary parts of the permeability are reduced. The band of negative permeability real part disappears at high dispersion. The paper also comments on the design of a lens aimed at improving the imaging properties of the MRI system. This lens is composed of cells with cubic symmetry. The proposed homogenization method is verified by measuring the scattering parameters of the metamaterial in a rectangular waveguide, and by proving the isotropic response of the metamaterial of the lens.

Název v anglickém jazyce

3D System of Randomly Detuned Ring Resonators

Popis výsledku anglicky

A homogenization procedure aimed at analyzing a metamaterial designed as a system composed of point magnetic dipoles is presented in this paper. These dipoles represent broad side coupled split ring resonators and/or conducting loops terminated by capacitors. A non-precise fabrication process causes dispersion of the geometrical and material parameters of the resonators, and thus dispersion of their resonance frequencies. The homogenization procedure takes into account random distribution of resonator resonance frequencies with the normal probability distribution. The resonant band of the effective permeability of the metamaterial is significantly widened, the values of both real and imaginary parts of the permeability are reduced. The band of negative permeability real part disappears at high dispersion. The paper also comments on the design of a lens aimed at improving the imaging properties of the MRI system. This lens is composed of cells with cubic symmetry. The proposed homogenization method is verified by measuring the scattering parameters of the metamaterial in a rectangular waveguide, and by proving the isotropic response of the metamaterial of the lens.

Druh

D - Stať ve sborníku

CEP obor

JA - Elektronika a optoelektronika, elektrotechnika

OECD FORD obor

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Projekt

<a href="/cs/project/GA13-09086S" target="_blank" >GA13-09086S: Výzkum umělých elektromagnetických materiálů a metamateriálů s užitými numerickými a zobrazovacími metodami</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2016

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Proceedings of the 16 th International Conference on Mathematical Methods in Electromagnetic Theory

ISBN

978-1-5090-1913-7

ISSN

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e-ISSN

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Počet stran výsledku

4

Strana od-do

341-344

Název nakladatele

Lviv Polytechnic National University

Místo vydání

Lviv

Místo konání akce

Lviv

Datum konání akce

5. 7. 2016

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000389608900077