Title :
An isolated 1 V Josephson voltage reference
Author :
Robinson, I.A. ; Kibble, B.P.
Author_Institution :
Nat. Phys. Lab., Teddington, UK
Abstract :
We operate a 1 V Josephson Junction array continuously in a low-loss storage dewar with only a small increase in the rate of helium loss. Microwave power at 86 GHz is applied to the array via an unclad dielectric waveguide and is switched by moving an absorber close to the guide. The operation of the array is fully automated and the array is biased and its voltage determined by an isolated bias source and voltmeter, either of which can be disconnected after the array voltage has been set.
Keywords :
measurement standards; shielding; superconducting junction devices; voltage measurement; 1 V; 86 GHz; I-V characteristics; absorber; biased array; computer-controlled switch; cooling; fully automated operation; isolated Josephson voltage reference; isolated bias source; low-loss storage dewar; measurement shield; microwave power; mounting; step selection; unclad dielectric waveguide; voltmeter; Circuits; Dielectrics; Electromagnetic heating; Helium; Josephson junctions; Microwave antenna arrays; Optical computing; Optical waveguides; Voltage; Voltmeters;
Conference_Titel :
Precision Electromagnetic Measurements Digest, 1998 Conference on
Conference_Location :
Washington, DC, USA
Print_ISBN :
0-7803-5018-9
DOI :
10.1109/CPEM.1998.700055
