McCaughan A N, Gammell J I, Oh D M, Nam S W
National Institute of Standards and Technology, Boulder, Colorado 80305, USA.
University of Colorado, Boulder, Colorado 80309, USA.
Rev Sci Instrum. 2020 Jan 1;91(1):015114. doi: 10.1063/1.5133055.
We have designed, constructed, and tested an electrical vacuum feedthrough that can carry a large number of microwave signal lines, has high vacuum compatibility, and is highly customizable. We found that it had a leak rate of approximately 10 Pa L/s (7.5 × 10 torr L/s), making it suitable for high-vacuum systems such as cryostats. The feedthrough is low-cost, and the printed circuit board-based design allows the choice of any surface-mountable microwave connector. We additionally verified operation through consistent use on a real cryogenic system and verified the mechanical robustness of the feedthrough.
我们设计、制造并测试了一种电真空馈通装置，它能够承载大量微波信号线，具有高真空兼容性且高度可定制。我们发现其泄漏率约为10 Pa·L/s（7.5×10⁻³托·L/s），这使其适用于低温恒温器等高真空系统。该馈通装置成本低，基于印刷电路板的设计允许选择任何可表面安装的微波连接器。我们还通过在实际低温系统上的持续使用验证了其运行情况，并验证了馈通装置的机械坚固性。
