| People | Locations | Statistics |
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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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Kumar, Vinay
VTT Technical Research Centre of Finland
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (13/13 displayed)
- 2024Investigating a Cylindrical Dielectric Resonator Antenna Fabricated with Li<sub>3</sub>MgNbO<sub>5</sub> Microwave Dielectric Ceramiccitations
- 2023Biodegradable Cellulose Nanocomposite Substrate for Recyclable Flexible Printed Electronicscitations
- 2022Unclonable Anti-Counterfeiting Labels Based on Microlens Arrays and Luminescent Microparticlescitations
- 2022A novel SM-Net model to assess the morphological types of Sella Turcica using Lateral Cephalogramcitations
- 2021Rheological behavior of high consistency enzymatically fibrillated cellulose suspensionscitations
- 2018Slot die coating of nanocellulose on paperboard
- 2017Substrate role in coating of microfibrillated cellulose suspensionscitations
- 2017Substrate role in coating of microfibrillated cellulose suspensionscitations
- 2016Influence of nanolatex addition on cellulose nanofiber film propertiescitations
- 2016Rheology of cellulose nanofibers suspensions: boundary driven flowcitations
- 2016Rheology of microfibrillated cellulose suspensions in pressure-driven flowcitations
- 2015Conductivity of PEDOT:PSS on spin-coated and drop cast nanofibrillar cellulose thin filmscitations
- 2014Comparison of nano- and microfibrillated cellulose filmscitations
Places of action
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article
Investigating a Cylindrical Dielectric Resonator Antenna Fabricated with Li<sub>3</sub>MgNbO<sub>5</sub> Microwave Dielectric Ceramic
Abstract
<jats:p>This work aims to fabricate a single-feed line Cylindrical Dielectric Resonator Antenna (CDRA) using low-temperature sintered Li<jats:sub>3</jats:sub>MgNbO<jats:sub>5</jats:sub> microwave dielectric ceramic as a resonator, excited in HEM<jats:sub>11<jats:italic>δ</jats:italic></jats:sub> mode. The ceramic synthesized using the conventional solid-state route resulted in a single-phase material exhibiting a cubic structure with an Fm-3m space group. The densely packed cylindrical disk of the ceramic was subsequently characterized for its microwave dielectric behaviour in TE<jats:sub>01<jats:italic>δ</jats:italic></jats:sub> mode using the Hakki-Coleman method. The dielectric permittivity (<jats:italic>ε</jats:italic><jats:sub>r</jats:sub>) measures 14.4, with a loss factor (tan <jats:italic>δ</jats:italic>) nearly equal to 4.01 × 10<jats:sup>−4</jats:sup> and a temperature coefficient (τ<jats:sub>f</jats:sub>) of −50.9 ppm °C<jats:sup>−1</jats:sup>. The antenna design was executed using the high-frequency structure simulator design software, utilizing the dielectric ceramic as the resonator, Cu strip as the feedline, and FR4 as the substrate. The maximum energy was coupled to the antenna when the resonator was placed at 11.75 mm on the substrate. The fabricated CDRA, using appropriate simulated parameters, resonated at 7.67 GHz, offering a return loss (S<jats:sub>11</jats:sub>) of −32.64 dB and an impedance bandwidth of 10.73%. Furthermore, the CDRA displayed a voltage standing wave ratio of 1.04, ensuring a nearby ideal impedance match and a bandwidth of 810 MHz to support high-speed data transmission.</jats:p>