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Communication Dans Un Congrès Année : 2005

A 310 degrees K-band phaseshifter using tunable BaSrTiO3 interdigitated capacitors

Résumé

BaSrTiO/sub 3/ thin films were deposited by low-cost sol-gel techniques and exhibit relative permittivity of 300 and loss tangent of 0.012 with a roll off above 5 GHz. Subsequently the films were used for fabricating coplanar waveguide phaseshifters using tunable finger-shaped capacitors. A 310/spl deg/ phaseshift was thus obtained at 30 GHz and 35 V of tuning voltage with 3.6 dB of insertion loss yielding a figure of merit of 85/spl deg//dB.
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Dates et versions

hal-00154900 , version 1 (15-06-2007)

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Gabriel Vélu, Karine Blary, Ludovic Burgnies, Jean-Claude Carru, Elisabet Delos, et al.. A 310 degrees K-band phaseshifter using tunable BaSrTiO3 interdigitated capacitors. European Microwave Conference, Oct 2005, Paris, France. 4 pp., ⟨10.1109/EUMC.2005.1608942⟩. ⟨hal-00154900⟩
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