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A 24-GHz Josephson array voltage standard

1991; Institute of Electrical and Electronics Engineers; Volume: 40; Issue: 2 Linguagem: Inglês

10.1109/tim.1990.1032944

1557-9662

C.A. Hamilton, R.L. Kantz, M. Stieg, Kao Chieh, William F. Avrin, M. B. Simmonds,

Integrated Circuits and Semiconductor Failure Analysis

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. >