Detection of 110 GHz millimeter-wave signal using DyBaCuO step-edge junction

Author

Fukumoto, Y. ; Shigaki, I. ; Kajikawa, H. ; Ogawa, R. ; Kawate, Y.

Author_Institution

Kobe Steel Ltd., Hyogo, Japan

Volume

3

Issue

1

fYear

1993

fDate

3/1/1993 12:00:00 AM

Firstpage

2238

Lastpage

2241

Abstract

Millimeter-wave detection was investigated using a step-edge microbridge Josephson junction (SEJJ) fabricated by a sputter-deposited DyBaCuO thin film. The SEJJ exhibited a clear response to 110-GHz millimeter-wave irradiation, and Shapiro steps could be observed up to the seventh step. Harmonic mixing detection was successfully achieved using microwaves of 6 approximately 22 GHz as a local oscillation signal. The dependence of conversion efficiency ( eta ) on the harmonic number was expressed as eta varies as N/sup -3.3/. The detector was operative at temperatures up to 65 K, although the efficiency rapidly decreased above 50 K.<>

Keywords

Josephson effect; barium compounds; dysprosium compounds; high-temperature superconductors; microwave detectors; mixers (circuits); receivers; superconducting junction devices; superconducting microwave devices; 110 GHz; DyBaCuO thin film; HTSC; Shapiro steps; conversion efficiency; harmonic number; millimetre wave detection; step-edge microbridge Josephson junction; Detectors; Frequency; Josephson junctions; Millimeter wave technology; Substrates; Superconducting device noise; Superconducting films; Superconducting microwave devices; Temperature sensors; Yttrium barium copper oxide;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/77.233559

Filename

233559