Simulation and measurement of a Ka-band HTS MMIC Josephson junction mixer
Simulation and measurement of a Ka-band HTS MMIC Josephson junction mixer
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DOI：
10.1088/0953-2048/30/1/015008
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发表时间：
2016
影响因子：
3.6
通讯作者：
Ting Zhang;C. Pegrum;Jia Du;Y. Guo
中科院分区：
文献类型：
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作者：
Ting Zhang;C. Pegrum;Jia Du;Y. Guo
本文报道了Ka波段高温超导单片微波集成电路约瑟夫森结混频器的建模和仿真结果。建立了Josephson结的Verilog-A模型，并将其导入系统仿真器，实现了包含高温超导无源电路模型的高温超导MMIC电路仿真。研究了结与无源器件之间的阻抗匹配优化问题。模拟了结直流I-V特性、电流和本振偏置条件以及混频性能，并与实验结果进行了比较。仿真结果与实测结果吻合较好。
We report modeling and simulation results for a Ka band high-temperature superconducting (HTS) monolithic microwave integrated circuit (MMIC) Josephson junction mixer. A Verilog-A model of a Josephson junction is established and imported into the system simulator to realize a full HTS MMIC circuit simulation containing the HTS passive circuit models. Impedance matching optimization between the junction and passive devices is investigated. Junction DC I–V characteristics, current and local oscillator bias conditions and mixing performance are simulated and compared with the experimental results. Good agreement is obtained between the simulation and measurement results.