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A 1-V series-array Josephson voltage standard operated at 35 GHz

Journal Article · · Journal of Applied Physics; (USA)
DOI:https://doi.org/10.1063/1.346149· OSTI ID:6283568
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  1. Sektion Physik der Friedrich-Schiller-Universitaet Jena, Max-Wein-Platz 1, DDR-6900 Jena (Federal Republic of Germany)

Josephson voltage standards utilize microwave-induced constant voltage steps in the dc characteristic of Josephson tunnel junctions. This paper describes the design and operation of array circuits with 108 and 2000 junctions connected in series. In contrast with similar realizations, simple {ital Q}-band equipment is used for the microwave supply. The microwave attenuation of 1000 junctions was about 1 dB. The version with 2000 junctions generated Josephson voltages up to 1.2 V when operated at 35 GHz. The stability times of the quantized levels were, under normal laboratory conditions (unshielded room), better than 10 min.

OSTI ID:
6283568
Journal Information:
Journal of Applied Physics; (USA), Journal Name: Journal of Applied Physics; (USA) Vol. 68:9; ISSN 0021-8979; ISSN JAPIA
Country of Publication:
United States
Language:
English