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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Parka, Janusz
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (7/7 displayed)
- 2022Active control of dielectric singularities in indium-tin-oxides hyperbolic metamaterialscitations
- 2022Active control of dielectric singularities in indium-tin-oxides hyperbolic metamaterialscitations
- 2013Microwave complex permittivity of voltage-tunable nematic liquid crystals measured in high resistivity silicon transducerscitations
- 2013Dielectric properties of highly anisotropic nematic liquid crystals for tunable microwave componentscitations
- 2011Silver-Gelatine Metal-Dielectric Composites Made From Developed X-Ray Filmscitations
- 2011Experimental study of thermally controlled metamaterial containing a liquid crystal layer at microwave frequenciescitations
- 2007Measurements of anisotropic complex permittivity of liquid crystals at microwave frequenciescitations
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article
Experimental study of thermally controlled metamaterial containing a liquid crystal layer at microwave frequencies
Abstract
The properties of metamaterials are now being investigated in a number of research centres. Structures such as split-ring resonators (SRR) have been developed to produce negative index materials (NIMs). Liquid crystals absorb over a broad range of wavelengths and have refractive indices which are extremely sensitive to temperature and external electromagnetic fields. Liquid crystals are therefore promising for the dynamic control of permittivity in metamaterials. A thermally controlled metamaterial structure employing a nematic liquid crystal (1801) has been characterised. It has been shown that using such liquid crystals in an anisotropic medium to construct useful materials, tunability of the effective parameters can be achieved. Measurements were performed at around 4.9 GHz.