The Simulation and Design of an On-Chip Superconducting Millimetre Filter-Bank Spectrometer
The Simulation and Design of an On-Chip Superconducting Millimetre Filter-Bank Spectrometer
复制标题
片上超导毫米波滤波器组光谱仪的仿真与设计
DOI：
10.1007/s10909-022-02747-3
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发表时间：
2022
影响因子：
2
通讯作者：
Karkare, K. S.
中科院分区：
文献类型：
--
作者：
Robson, G.;Anderson, A. J.;Barry, P. S.;Doyle, S.;Karkare, K. S.
超导片上滤波器组提供了一种可扩展的、节省空间的解决方案，用于创建毫米和亚毫米波长的成像光谱仪。我们提出了一个易于实现，光刻超导滤波器的设计与制造误差的高容忍度。使用电容耦合微带谐振器来定义窄的（）光谱通带，给定光谱仪通道的滤波输出直接连接到集总元件动态电感检测器。我们展示了我们设计的容差分析，演示了任何一个实际制造误差都会导致滤波器品质因子的变化，并且在考虑制造误差和介电损耗角正切后，完整滤波器组效率预测为50%。
Superconducting on-chip filter banks provide a scalable, space saving solution to create imaging spectrometers at millimetre and submillimetre wavelengths. We present an easy to realise, lithographed superconducting filter design with a high tolerance to fabrication error. Using a capacitively coupledmicrostrip resonator to define a narrow () spectral pass band, the filtered output of a given spectrometer channel directly connects to a lumped-element kinetic inductance detector. We show the tolerance analysis of our design, demonstratingchange in filter quality factor to any one realistic fabrication error and a full filter-bank efficiency forecast to be 50% after accounting for fabrication errors and dielectric loss tangent.