NDLI: Tunable and flexible Barium Strontium Titanate (BST) varactors on Liquid Crystal Polymer (LCP) substrates

Content Provider	IEEE Xplore Digital Library
Author	Ya Shen Ebadi, Siamak Wahid, Parveen Xun Gong
Copyright Year	2012
Description	Author affiliation: Department of Electrical Engineering and Computer Science, University of Central Florida, Orlando, 32816, U.S.A. (Ya Shen; Ebadi, Siamak; Wahid, Parveen; Xun Gong)
Abstract	Tunable inter-digital capacitors (IDCs) are presented on flexible Liquid Crystal Polymer (LCP) substrates for the first time. Barium Strontium Titanate (BST) ferroelectric material is used as the tuning mechanism. A unique transfer process has been implemented to realize the BST thin film on the LCP substrate. In addition, due to the monolithic integration process, there is no wire bonding or packaging. This has allowed for successful demonstration of tunable and flexible IDCs up to 50 GHz. Tunability of 22–28% and Q factors of 80–7 have been measured in the frequency range of 0.01–50 GHz. To our knowledge, this is the first demonstration of a tunable ferroelectric device on 100% flexible materials without the use of any rigid components. This technology will have a wide range of applications in new generation of agile, high-frequency, and flexible electronics.
Starting Page	1
Ending Page	3
File Size	1223643
Page Count	3
File Format	PDF
ISBN	9781467310857
ISSN	0149645X
e-ISBN	9781467310888
e-ISBN	9781467310864
DOI	10.1109/MWSYM.2012.6259668
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-06-17
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Substrates Voltage measurement Frequency measurement Capacitance Q factor Microwave filters Q measurement tunable circuits and devices Capacitors ferroelectric films flexible electronics liquid crystal polymers
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electrical and Electronic Engineering Radiation

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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