Title :
A 24 GHz Josephson array voltage standard
Author :
Hamilton, C.A. ; Kautz, R.L. ; Stieg, M. ; Chieh, K. ; Simmonds, M.B. ; Avrin, W.F.
Author_Institution :
Nat. Inst. of Stand. & Technol., Boulder, CO, USA
Abstract :
A Josephson array voltage standard that operates at 24 GHz has been designed and fabricated. Substantial advantages in cost and reliability are realized over more conventional devices that operate at 70-100 GHz. Typical step stability times of 20 min are more than adequate for calibrations at the 1-V level. Designs using both probe and finline microwave couplers were tested. The probe coupler was about 3 dB more efficient and allowed a smaller chip and a less expensive mount.<>
Keywords :
Josephson effect; measurement standards; superconducting junction devices; voltage measurement; 24 GHz; Josephson array voltage standard; cost; finline microwave couplers; probe coupler; reliability; Calibration; Costs; Couplers; Frequency; NIST; Probes; Stability; Stripline; Testing; Voltage;
Conference_Titel :
Precision Electromagnetic Measurements, 1990. CPEM '90 Digest., Conference on
Conference_Location :
Ottawa, Ontario, Canada
DOI :
10.1109/CPEM.1990.109913
