Title :
Josephson arrays at 70 GHz for conventional and programmable voltage standards
Author :
Behr, R. ; Schulze, H. ; Muller, F. ; Niemeyer, J.
Author_Institution :
Phys. Tech. Bundesanstalt, Braunschweig, Germany
Abstract :
This paper describes the performance under real calibration conditions of improved conventional Nb/Al/AlO/sub x//Nb (SIS) 10-V Josephson series arrays (JJAs) fabricated in the last two years at PTB. A new type of Nb/Al/AlO/sub x//Al/AlO/sub x//Al/Nb (SINIS) array is described which is useful for programmable voltage standards in the frequency range from 70 GHz to 90 GHz.
Keywords :
calibration; measurement standards; superconducting microwave devices; superconductor-insulator-superconductor devices; superconductor-normal-superconductor devices; voltage measurement; 10 V; 70 to 90 GHz; Josephson arrays; Nb-Al-AlO-Al-AlO-Al-Nb; Nb-Al-AlO-Nb; Nb/Al/AlO/sub x//Al/AlO/sub x//Al/Nb array; Nb/Al/AlO/sub x//Nb arrays; SINIS array; Shapiro step; array performance; conventional voltage standards; optimal microwave power; programmable voltage standards; real calibration conditions; volt unit realisation; Calibration; Frequency; High power microwave generation; Microwave generation; Niobium; Power generation; Stability; Switches; Testing; Voltage;
Conference_Titel :
Precision Electromagnetic Measurements Digest, 1998 Conference on
Conference_Location :
Washington, DC, USA
Print_ISBN :
0-7803-5018-9
DOI :
10.1109/CPEM.1998.699992
