Josephson arrays at 70 GHz for conventional and programmable voltage standards

Authors
Behr, R Schulze, H Muller, F Kohlmann, J Niemeyer, J
Citation
R. Behr et al., Josephson arrays at 70 GHz for conventional and programmable voltage standards, IEEE INSTR, 48(2), 1999, pp. 270-273
Citations number
7
Categorie Soggetti
Instrumentation & Measurement
Journal title
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
ISSN journal
00189456 → ACNP
Volume
48
Issue
2
Year of publication
1999
Pages
270 - 273
Database
ISI
SICI code
0018-9456(199904)48:2<270:JAA7GF>2.0.ZU;2-M
Abstract
This paper describes the performance under real calibration conditions of i mproved conventional Nb/Al/AlOx/Nb 10 V Josephson junction series arrays fa bricated in the last two Sears at PTB. A new type of Nb/Al/AlOx/Al/AlOx/Al/ Nb array is also described that is useful for programmable voltage standard s in the frequency range from 70-90 GHz, A direct comparison with a convent ional Josephson junction series array was carried out at 1.018 V. The resul ts agree within an uncertainty of better than 1 nV.