| 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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Cros, Dominique
University of Limoges
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (16/16 displayed)
- 2021Enhanced tunability and temperature-dependent dielectric characteristics at microwaves of K0.5Na0.5NbO3 thin films epitaxially grown on (100)MgO substratescitations
- 2021Hybridization of additive manufacturing processes to build ceramic/metal parts: Example of HTCCcitations
- 2020Hybridization of additive manufacturing processes to build ceramic/metal parts: Example of LTCCcitations
- 2016BST thin film capacitors integrated within a frequency tunable antenna
- 2014Intercomparison of Permittivity Measurement Techniques for Ferroelectric Thin Layerscitations
- 2011Microwave properties of semi-insulating silicon carbide between 10 and 40 GHz and at cryogenic temperaturescitations
- 2010Detrapping and retrapping of free carriers in nominally pure single crystal GaP, GaAs, and 4H–SiC semiconductors under light illumination at cryogenic temperaturescitations
- 2010High permeability and high permittivity heterostructures for the miniaturization of Radiofrequency components
- 2010A 380-420 MHz Two Pole tunable filter using new ferroelectric composite capacitors
- 2009Filter Synthesis using Shear Wave Piezoelectric Layer Resonators
- 2009Magnetodielectric Thin Film Heterostructure With High Permeability and Permittivity
- 2008Characterization of materials and mode structure of high-Q resonators using Bragg confined modes
- 2008Modified permittivity observed in bulk gallium arsenide and gallium phosphide samples at 50 K using the whispering gallery mode methodcitations
- 2008Low-loss materials for high -factor Bragg reflector resonatorscitations
- 2007Pulsed laser deposition o aluminum nitride thin films for FBAR applicationscitations
- 2003Characterization of a spherically symmetric fused-silica-loaded cavity microwave resonatorcitations
Places of action
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article
Characterization of a spherically symmetric fused-silica-loaded cavity microwave resonator
Abstract
Whispering spherical modes in a fused-silica-loaded cavity with spherical symmetry are characterized and reported. The fundamental mode families of the transverse electric and transverse magnetic whispering gallery modes are measured and the loss tangent of the fused silica determined as a function of frequency in the 3–12 GHz regime. The temperature dependences of mode frequency and quality factor were determined between 6 and 300 K. The relative permittivity and loss tangent for fused silica at 5.18 GHz were determined between 6 and 300 K. Below 22 K the frequency dependence of the 5.18 GHz TM212 mode of resonance was consistent with the combined effects of the thermal properties of the dielectric and the temperature dependence of an unknown paramagnetic impurity ion, which has a spin resonance frequency at about 138 ± 31 GHz. Below 8 K the loss tangent exhibited a ninth-order power-law temperature dependence, which may be explained in terms of Raman scattering of phonons from the paramagnetic impurity ions.