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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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Mazierska, J.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (4/4 displayed)
- 2005Low temperature complex permittivity of MgF/sub 2/ at microwave frequencies from TE/sub 01/spl delta// modescitations
- 2004Temperature dependence of permittivity and loss tangent of lithium tantalate at microwave frequenciescitations
- 2003Lithium tantalate - a high permittivity dielectric material for microwave communication systemscitations
- 2002Microwave properties of low-loss polymers at cryogenic temperaturescitations
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article
Microwave properties of low-loss polymers at cryogenic temperatures
Abstract
Dielectric loss tangent and permittivity of polytetrafluoroethylene (Teflon), high-density (HD) polyethylene, and cross-linked polystyrene (Rexolite) were measured at temperature range from 28 to 84 K and frequency of approximately 18 GHz. The material properties were determined by measurements of the resonant frequency and the Q factor of a TE011 mode cylindrical superconducting cavity containing a sample under test. It has been demonstrated that these materials exhibit very low losses at cryogenic temperatures (2 times;10-6 for Teflon, 5 times;10-5 for HD polyethylene and 1.1 times;10-4 for Rexolite). Due to low losses, these materials can be useful in construction of various high-Q factor microwave devices for operation at cryogenic temperatures