NDLI: Quality factor of microstrip resonators based on YBCO films, in the frequency range 1.5-2 GHz

Content Provider	IEEE Xplore Digital Library
Author	Skoryk, M. Pan, V. Tarasov, V. Flis, V. Filimonov, A. Futimsky, S.
Copyright Year	2004
Description	Author affiliation: Dept. of Supercond., Acad. of Sci. of Ukraine, Kyiv, Ukraine (Skoryk, M.; Pan, V.; Tarasov, V.; Flis, V.; Filimonov, A.; Futimsky, S.)
Abstract	Higher usage of the mobile phone and internet services has increased the demands on the mobile frequency spectrum resulting in the congestion of the frequency bands used for the wireless communication systems. Consequently the adjacent channel interference and hence the number of dropout calls have increased. High Temperature Superconducting (HTS) microstrip filters enable the decrease in the adjacent channel interference, improvement of the audio quality and increase of the sensitivity of wireless communication receivers. Improvements in the performance of microwave HTS devices directly depend on lowering the surface resistance of the HTS thin films. Therefore it is important to fabricate HTS thin films with the lowest possible surface resistance. In general, microwave losses of HTS films depend on several factors such as the substrate material and deposition technique. In this paper we report results on YBa/sub 2/Cu/sub 3/O/sub 7-d/ (YBCO) thin films deposited on Al/sub 2/O/sub 3/ substrates with CeO/sub 2/ sub layer. We have used a microstrip resonator for reflection parameter measurements for data processing. We have carried out the measurements of microstrip meander resonators quality factor at frequency 1.8 GHz. Resonators are prepared by the wet etching technique, from the YBCO films, with sapphire substrate and CeO/sub 2/ sub layer, which is obtained by the laser ablation method. In our investigation we have used a single-port measurement method (using reflection factor).
Starting Page	418
Ending Page	420
File Size	208926
Page Count	3
File Format	PDF
ISBN	0780384113
DOI	10.1109/MSMW.2004.1345914
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2004-06-21
Publisher Place	Ukraine
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Q factor Microstrip resonators Yttrium barium copper oxide Frequency High temperature superconductors Surface resistance Superconducting microwave devices Wireless communication Interchannel interference Superconducting filters
Content Type	Text
Resource Type	Article

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