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Tunable band stop filters based on Metal-Insulator Transition in vanadium dioxide thin films

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6 Author(s)
Givernaud, Julien ; XLIM Research Institute -CNRS, University of Limoges, 123 Avenue Albert Thomas, 87060, FRANCE ; Champeaux, Corinne ; Catherinot, Alain ; Pothier, A.
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We present the design, simulation and fabrication of innovative tunable band stop filters realized using switching devices based on the fast, reversible Metal-Insulator Transition of vanadium dioxide thin films. The filters are designed to operate in the 11-13 GHz frequency range and consists in a transmission line coupled with four U-shaped resonators. We developed two types of tunable filters based on VO2 switches integration namely a ldquoswitchable stop band filterrdquo for which the rejection band can be switched on and off and a ldquodiscrete tunable stop-band filterrdquo for which the width and position of the stopband can be discretely tuned.

Published in:

Microwave Symposium Digest, 2008 IEEE MTT-S International

Date of Conference:

15-20 June 2008