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

作者：Du J^*; Macfarlane J C; Pegrum C M; Zhang T; Cai Y; Guo Y J

来源：Journal of Applied Physics, 2012, 111(5): 053910.

DOI：10.1063/1.3691191

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 %26quot;resistive-superconducting quantum interference device%26quot; (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. [http://dx.doi.org/10.1063/1.3691191]

• 出版日期2012-3-1
• 单位CSIRO