Title :
Tunable band stop filters based on Metal-Insulator Transition in vanadium dioxide thin films
Author :
Givernaud, Julien ; Champeaux, Corinne ; Catherinot, Alain ; Pothier, Arnaud ; Blondy, Pierre ; Crunteanu, Aurelian
Author_Institution :
XLIM Research Institute -CNRS, University of Limoges, 123 Avenue Albert Thomas, 87060, FRANCE
Abstract :
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.
Keywords :
band-stop filters; microwave filters; resonators; vanadium compounds; four U-shaped resonators; frequency 11 GHz to 13 GHz; metal insulator transition; reversible metal-insulator transition; switching devices; tunable band stop filters; vanadium dioxide thin films; Metal-insulator structures; Microwave filters; Optical attenuators; Optical films; Optical filters; Resonator filters; Switches; Temperature; Transistors; Tunable circuits and devices; intelligent materials; laser ablation; microwave filters; switching; tunable filters;
Conference_Titel :
Microwave Symposium Digest, 2008 IEEE MTT-S International
Conference_Location :
Atlanta, GA
Print_ISBN :
978-1-4244-1780-3
Electronic_ISBN :
0149-645X
DOI :
10.1109/MWSYM.2008.4633249
