Presentation 1995/10/25
Millimeter wave mixing with weak-link Josephson junction arrays
Koji Tsuru, Kazunori Miyahara, Minoru Suzuki,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) We have investigated weak link Josephson junction arrays for a 100GHz millimeter wave mixer. Junction arrays were fabricated from Eu_lBa_2Cu_3O_<7-x> thin films grown on MgO bicrystal substrates. Responses of the junction arrays to millimeter waves were measured using a wave guide to microstripline converter. Shapiro steps were observed in the I-V characteristics of the junction arrays by applying a 100GHz millimeter wave through the converter. The mixing intermediate frequency (IF) output in a 500MHz frequency range was obtained from the junction array injected two millimeter waves. The peaks of the IF output corresponded to the peaks of the differential resistivity dV/dI. The conversion efficiency of a 5 junction array was estimated to be -29.9dB at 574MHz IF output.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Mixer / millimeter wave / Josephson junctions / wave guide - microstripline converter / conversion efficiency
Paper # SCE95-24
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Conference Information
Committee SCE
Conference Date 1995/10/25(1days)
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Paper Information
Registration To Superconductive Electronics (SCE)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Millimeter wave mixing with weak-link Josephson junction arrays
Sub Title (in English)
Keyword(1) Mixer
Keyword(2) millimeter wave
Keyword(3) Josephson junctions
Keyword(4) wave guide - microstripline converter
Keyword(5) conversion efficiency
1st Author's Name Koji Tsuru
1st Author's Affiliation NTT Interdisciplinary Research Laboratories()
2nd Author's Name Kazunori Miyahara
2nd Author's Affiliation NTT Interdisciplinary Research Laboratories
3rd Author's Name Minoru Suzuki
3rd Author's Affiliation NTT Interdisciplinary Research Laboratories
Date 1995/10/25
Paper # SCE95-24
Volume (vol) vol.95
Number (no) 338
Page pp.pp.-
#Pages 6
Date of Issue