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Superconducting Qua...
Superconducting Quantum Interference Filters as RF amplifiers
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- Snigirev, O. (author)
- M. V. Lomonosov Moscow State University
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- Chukharkin Leonidovich, Maxim, 1980 (author)
- M. V. Lomonosov Moscow State University
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- Kalaboukhov, Alexei, 1975 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Tarasov, Mikhail, 1954 (author)
- National Research University of Electronic Technology (MIET)
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- Deleniv, Anatoli, 1969 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Mukhanov, O. (author)
- HYPRES, Inc.
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- Winkler, Dag, 1957 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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M V. Lomonosov Moscow State University Chalmers tekniska högskola (creator_code:org_t)
- 2007
- 2007
- English.
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In: IEEE Transactions on Applied Superconductivity. - 1558-2515 .- 1051-8223. ; 17:2, s. 718-721
- Related links:
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http://dx.doi.org/10...
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https://research.cha...
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https://doi.org/10.1...
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Abstract
Subject headings
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- The superconducting Quantum Interference Filter (SQIF) is a new type of superconducting device which has been recently proposed for highly sensitive magnetometers for absolute magnetic field measurements. It benefits of very high voltage-to-field response, which is, in contrast conventional dc SQUIDs, not periodical. The SQIF can also be used as a radiofrequency amplifier in a similar way as the dc SQUID that can operate in a gigahertz frequency range. We designed a series type of SQIF amplifier that is compatible to conventional YBa2Cu3O7 (YBCO)technology on bicrystal substrates. We present analytical, numericaland scale modeling as well as first electrical measurementsresults at frequencies up to 10 GHz. The SQIF array consists of 50 loops with randomly distributed areas from 0.5 to 1.5 times of 3x30 m2. We also compared it to the regular array of conventional SQUIDs with the same loop areas. We have additional dc contacts to each 5-th SQUIDs and the SQIFs for control and comparison. Devices are fabricated using Josephson junctions with 3 m width formed in YBCO over 24/24 and 12/12 degrees grain boundaries in yttrium-stabilized zirconia (YSZ) bicrystal substrates.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Annan elektroteknik och elektronik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Other Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)
Keyword
- superconducting filters
- high temperature superconductors
- Josephson effect
- SQUID`s
Publication and Content Type
- art (subject category)
- ref (subject category)
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