A self-pumped high-temperature superconducting Josephson mixer: modelling and measurement

J. Du; J. C. MacFarlane; C. M. Pegrum; T. Zhang; Y. Cai; Y. J. Guo

doi:10.1063/1.3691191

A self-pumped high-temperature superconducting Josephson mixer: modelling and measurement

J. Du^*, J. C. MacFarlane, C. M. Pegrum, T. Zhang, Y. Cai, Y. J. Guo

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

10 Citations (Scopus)

Abstract

We have recently developed a high-temperature superconducting (HTS) Josephson self-pumped mixer with an on-chip heterodyne local oscillator. The device is based on HTS step-edge junction technology and a resistive- superconducting quantum interference device (RSQUID) configuration. The heterodyne local oscillator and mixer output are frequency-tunable from below 10 MHz to 5 GHz by a control current. The performance of the autonomous Josephson mixer-local oscillator has been experimentally evaluated in terms of the current-voltage characteristics, intermediate frequency (IF)-tunable bandwidth, operation range, linearity, bias current, and temperature dependence of the IF output (or mixer conversion efficiency). We find the results are in good overall agreement with numerical simulation.

Original language	English
Article number	053910
Pages (from-to)	1-6
Number of pages	6
Journal	Journal of Applied Physics
Volume	111
Issue number	5
DOIs	https://doi.org/10.1063/1.3691191
Publication status	Published - 1 Mar 2012
Externally published	Yes

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abstract = "We have recently developed a high-temperature superconducting (HTS) Josephson self-pumped mixer with an on-chip heterodyne local oscillator. The device is based on HTS step-edge junction technology and a resistive- superconducting quantum interference device (RSQUID) configuration. The heterodyne local oscillator and mixer output are frequency-tunable from below 10 MHz to 5 GHz by a control current. The performance of the autonomous Josephson mixer-local oscillator has been experimentally evaluated in terms of the current-voltage characteristics, intermediate frequency (IF)-tunable bandwidth, operation range, linearity, bias current, and temperature dependence of the IF output (or mixer conversion efficiency). We find the results are in good overall agreement with numerical simulation.",

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AU - Cai, Y.

AU - Guo, Y. J.

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AB - We have recently developed a high-temperature superconducting (HTS) Josephson self-pumped mixer with an on-chip heterodyne local oscillator. The device is based on HTS step-edge junction technology and a resistive- superconducting quantum interference device (RSQUID) configuration. The heterodyne local oscillator and mixer output are frequency-tunable from below 10 MHz to 5 GHz by a control current. The performance of the autonomous Josephson mixer-local oscillator has been experimentally evaluated in terms of the current-voltage characteristics, intermediate frequency (IF)-tunable bandwidth, operation range, linearity, bias current, and temperature dependence of the IF output (or mixer conversion efficiency). We find the results are in good overall agreement with numerical simulation.

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A self-pumped high-temperature superconducting Josephson mixer: modelling and measurement

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