红外与毫米波学报2024，Vol.43Issue(3)：336-345,10.DOI:10.11972/j.issn.1001-9014.2024.03.007
太赫兹超导动态电感探测器性能表征用零差混频系统研制
Development of a homodyne mixing system for performance characterization of terahertz superconducting KIDs
摘要
Abstract
The homodyne mixing system is used to characterizing the performance of terahertz superconducting ki-netic inductance detectors(KIDs).However,homodyne mixing systems still have issues such as mixer imbal-ance,measurement system integration,and interference signals.The author designed a new single channel ho-modyne mixing hardware system and software algorithms to achieve integration of the measurement system,cali-bration of IQ-mixer imbalance,and performance characterization of KID;Furthermore,noise measurement of KIDs in VNA(vector network analyzer)CW mode is achieved;Finally,the method of hardware circuit design by dual channel homodyne mixing system based on autocorrelation algorithm effectively suppresses interference signals.It is worth noting that these research results are applied to characterize the performance of KIDs,which is important in the design of KIDs arrays.关键词
KIDs/零差混频系统/太赫兹/自相关算法Key words
KIDs/homodyne mixing system/terahertz/autocorrelation分类
数理科学引用本文复制引用
张嘉文,金骏达,史生才,李婧,耿伟,吕伟涛,李陟,支强,彭昭航..太赫兹超导动态电感探测器性能表征用零差混频系统研制[J].红外与毫米波学报,2024,43(3):336-345,10.基金项目
Supported by the National Natural Science Foundation of China(11925304,12020101002,12103093) （11925304,12020101002,12103093）
National Key R&D Program of China(2023YFA1608200). （2023YFA1608200）
