Superconducting Josephson arrays as tunable microwave sources operating at 77 K

J. S. Martens; A. Pance; K. Char; L. Lee; S. Whiteley; V. M. Hietala

doi:10.1063/1.110709

Superconducting Josephson arrays as tunable microwave sources operating at 77 K

J. S. Martens, A. Pance, K. Char, L. Lee, S. Whiteley, V. M. Hietala

Department of Chemistry & Nanoscience

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33 Scopus citations

Abstract

High-temperature superconducting arrays of Josephson junctions have been fabricated and tested as millimeter-wave oscillators at 77 K. Power levels in the microwatt range have been detected in the range of 90-160 GHz from arrays using from 350 to almost 60 000 YBa₂Cu₃O₇ junctions. Monolithic log-periodic spiral antennas as well as quasioptical resonators have been used to enable power coupling. The arrays were also found to be bias tunable over ranges limited by the receiving apparatus.

Original language	English
Pages (from-to)	1681-1683
Number of pages	3
Journal	Applied Physics Letters
Volume	63
Issue number	12
DOIs	https://doi.org/10.1063/1.110709
State	Published - 1993

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title = "Superconducting Josephson arrays as tunable microwave sources operating at 77 K",

abstract = "High-temperature superconducting arrays of Josephson junctions have been fabricated and tested as millimeter-wave oscillators at 77 K. Power levels in the microwatt range have been detected in the range of 90-160 GHz from arrays using from 350 to almost 60 000 YBa2Cu3O7 junctions. Monolithic log-periodic spiral antennas as well as quasioptical resonators have been used to enable power coupling. The arrays were also found to be bias tunable over ranges limited by the receiving apparatus.",

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AU - Martens, J. S.

AU - Pance, A.

AU - Char, K.

AU - Lee, L.

AU - Whiteley, S.

AU - Hietala, V. M.

PY - 1993

Y1 - 1993

N2 - High-temperature superconducting arrays of Josephson junctions have been fabricated and tested as millimeter-wave oscillators at 77 K. Power levels in the microwatt range have been detected in the range of 90-160 GHz from arrays using from 350 to almost 60 000 YBa2Cu3O7 junctions. Monolithic log-periodic spiral antennas as well as quasioptical resonators have been used to enable power coupling. The arrays were also found to be bias tunable over ranges limited by the receiving apparatus.

AB - High-temperature superconducting arrays of Josephson junctions have been fabricated and tested as millimeter-wave oscillators at 77 K. Power levels in the microwatt range have been detected in the range of 90-160 GHz from arrays using from 350 to almost 60 000 YBa2Cu3O7 junctions. Monolithic log-periodic spiral antennas as well as quasioptical resonators have been used to enable power coupling. The arrays were also found to be bias tunable over ranges limited by the receiving apparatus.

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Superconducting Josephson arrays as tunable microwave sources operating at 77 K

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