对于超导体芯片上波器集群的定向波器设计和模拟
Louis H Marting1,2, Kenichi Karatsu2, Akira Endo1
1Faculty of Electrical Engineering, Mathematics and Computer Science, Delft University of Technology, Mekelweg 4, 2628 CD Delft, Zuid-Holland The Netherlands.
Journal of low temperature physics
|July 29, 2024
概括
一个新的定向波器为超导芯片上波器银行提供100%的合效率,克服了传统半波长波器的50%限制. 这一进步显著改善了检测器合和过器银行系统的整体效率.
科学领域:
- 超导电子设备中的超导体.
- 微波工程 微波工程 微波工程
- 天体物理仪器仪器仪表.
背景情况:
- 芯片上的超导过器经常表现出对探测器的合效率有限.
- 传统的半波长过器设计具有50%的理论最大合.
研究的目的:
- 引入和评估一种具有100%理论合的新型相连贯定向波器.
- 分析和建模过器板的性能,考虑到制造上的缺陷.
主要方法:
- 来自DESHIMA 2.0过器银行芯片的测量过器频率散射,损失和光谱分辨率的分析.
- 适应测量制造公差和损失的电路模拟,以复制实验结果.
- 开发一个全面的过器银行模型,包含模拟的现实参数.
主要成果:
- 频率分散归因于纳米尺度线宽变化.
- 光谱分辨率差异仅由介电损失引起.
- 与半波振荡器设计相比,定向波器银行在各种模拟中显示出明显更高的探测器合.
结论:
- 定向波器在介电损失后实现了近乎完美的功率捕获,消除了过量采样以提高效率的需要.
- 这项技术为芯片上的超导过器提供了显著的改进,提高了系统的整体性能.
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