Presentation 1995/4/26
Effects of microstructures on microwave power handling capability in YBCO microstrip resonators and filters
Tsutomu Yoshitake, Shuichi Tahara, Tetsuji Inui, Shinji Suzuki,
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Abstract(in English) We have fabricated microstrip resonators at 5.7GHz using YBCO films deposited on both sides of MgO substrates and examined effects of film microstructures on power handling capability. Films with small grains (~100nm) and large critical current density showed fairly small input power dependence of surface resistance and resonance frequency. On the other hand, the films with large grains (~200nm) and small critical current density showed significant change in these properties. A qualitative discussion based on the coupled-grain model suggested that the coupling strength at the grain boundaries mainly dominates the power handling capability of the YBCO films. Band-pass filters (9.5GHz) using these double-sided YBCO films showed very small insertion loss.
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Keyword(in English) YBaCuO / oxide superconductor / film / microwave / resonator / filter
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Committee SCE
Conference Date 1995/4/26(1days)
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Registration To Superconductive Electronics (SCE)
Language JPN
Title (in Japanese) (See Japanese page)
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Title (in English) Effects of microstructures on microwave power handling capability in YBCO microstrip resonators and filters
Sub Title (in English)
Keyword(1) YBaCuO
Keyword(2) oxide superconductor
Keyword(3) film
Keyword(4) microwave
Keyword(5) resonator
Keyword(6) filter
1st Author's Name Tsutomu Yoshitake
1st Author's Affiliation Fundamental Res. Labs., NEC Corporation()
2nd Author's Name Shuichi Tahara
2nd Author's Affiliation Fundamental Res. Labs., NEC Corporation
3rd Author's Name Tetsuji Inui
3rd Author's Affiliation Resources and Environment Protection Research Laboratories, NEC Corporation
4th Author's Name Shinji Suzuki
4th Author's Affiliation Space Systems Development Division, NEC Corporation
Date 1995/4/26
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Volume (vol) vol.95
Number (no) 18
Page pp.pp.-
#Pages 6
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