A Compact Superconducting Heterodyne Focal Plane Array Implemented With HPI (Hybrid Planar Integration) Scheme
A Compact Superconducting Heterodyne Focal Plane Array Implemented With HPI (Hybrid Planar Integration) Scheme
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DOI：
10.1109/tthz.2020.3025097
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发表时间：
2020-11
影响因子：
3.2
通讯作者：
W. Shan;S. Ezaki;Haoran Kang;Álvaro González;T. Kojima;Y. Uzawa
中科院分区：
文献类型：
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作者：
W. Shan;S. Ezaki;Haoran Kang;Álvaro González;T. Kojima;Y. Uzawa
本文讨论了采用混合平面集成（HPI）方案构建超导体-绝缘体-超导体（SIS）混合焦平面阵列的实验证据，该方案具有前所未有的紧凑性。该方案的特点是采用基于硅膜的波导探头，它允许超导单片微波集成电路通过多个路径将信号和来自（计算机数控）加工波导的本振（LO）耦合。利用该方案实现了一个$2\ × 2$双偏振平衡SIS混频器阵列，并在$125 - $ text{163}\, $ text{GHz}$射频频段进行了测试。该阵列具有LO分布均匀、像素间串扰低的特点。高集成度对元件像素的射频性能影响很小。本文还讨论了在太赫兹频率下实现HPI方案的可能性。
The article is concerned with the experimental evidence that proves technical feasibility of the hybrid planar integration (HPI) scheme that has been proposed to construct superconductor–insulator–superconductor (SIS) mixer focal plane arrays of unprecedented compactness. The scheme is characterized by the adoption of silicon membrane-based waveguide probes, which allows superconducting monolithic microwave integrated circuits to couple signal, and local oscillator (LO) from (computer numerical control)-machined waveguides through multiple paths. A $2\times 2$ dual-polarization balanced SIS mixer array has been implemented with this scheme, and assessed in $125 - \text{163}\,\text{GHz}$ RF band. This compact array has demonstrated uniform LO distribution, and low crosstalk between pixels. The RF performance of component pixels has been confirmed to be little affected by the high-degree integration. The potential implementation of the HPI scheme at THz frequencies is also discussed.