Microchip design for a low-frequency Josephson-array voltage standard

• Published in: IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers); (United States) Vol. 27; no. 2; pp. 3359 - 3362
• Main Authors: Avrin, W.F., Simmonds, M.B., Hamilton, C.A.
• Format: Journal Article Conference Proceeding
• Language: English
• Published: New York, NY IEEE 01-03-1991; Institute of Electrical and Electronics Engineers
• Subjects: Applied sciences; Capacitance; CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; DESIGN; ELECTROMAGNETIC RADIATION; ELECTRONIC CIRCUITS; Electronics; Exact sciences and technology; INTEGRATED CIRCUITS; JOSEPHSON JUNCTIONS; JUNCTIONS; LAYERS; MICROELECTRONIC CIRCUITS; Microwave antenna arrays; Microwave frequencies; Microwave magnetics; MICROWAVE POWER TRANSMISSION; Microwave propagation; MICROWAVE RADIATION; Niobium; NIST; POWER TRANSMISSION; RADIATIONS; Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices; SUPERCONDUCTING COILS; Superconducting devices; SUPERCONDUCTING JUNCTIONS 665412 > Superconducting Devices > (1992-); Temperature; Voltage
• ISSN: 0018-9464; 1941-0069
• DOI: 10.1109/20.133932

The complexity of the Josephson array voltage standard can be reduced by using lower-frequency microwaves to excite the junction array. For operation at reduced frequencies, the design of the array must take the large size of the junctions, and the perturbing effect of the junction reactance on the distribution of microwave power into account. Such issues are especially important when durable, but low-capacitance, trilayer junctions are used in the array. These problems are minimized by a design in which the junction array is wound into a continuous spiral.