NDLI: An electrically tunable high-T/sub c/ microwave bandpass filter

Content Provider	IEEE Xplore Digital Library
Author	Mallory, D.S. Kadin, A.M.
Copyright Year	2002
Abstract	A prototype superconducting microwave bandpass filter whose center frequency can be tuned electrically is designed, modeled, fabricated, and tested. The tuning is accomplished via self-heating of a superconducting control line located next to a superconducting resonating element. Both the single-pole microstrip filter and the control line are patterned from a single thin-film layer of YBa/sub 2/Cu/sub 3/O/sub 7/. When the critical current of the control line is exceeded, at an operating temperature of 77 K and below, the center frequency of 13 GHz shifts down by as much as 50 MHz, with only a modest increase of insertion loss. This performance is successfully modeled in terms of the change in the kinetic inductance of the filter element caused by heating the control line. Switching speeds in excess of 1 kHz are demonstrated. Implications of these results for the design of an improved tunable high-temperature superconducting filter are discussed.
Sponsorship	Council on Superconductivity Appl. Superconductivity Conference Inc MIT
Starting Page	2788
Ending Page	2792
Page Count	5
File Size	695551
File Format	PDF
ISSN	10518223
Volume Number	7
Issue Number	2
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1997-06-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Superconducting filters High temperature superconductors Superconducting epitaxial layers Superconducting microwave devices Band pass filters Frequency Temperature control Prototypes Electromagnetic heating Testing
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
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
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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