太赫兹混频器扫频测试技术  

Sweep frequency measurement technique of terahertz mixer

作　　者：王旭 年夫顺 邓建钦 王沫 贾定宏 Wang Xu;Nian Fushun;Deng Jianqin;Wang Mo;Jia Dinghong(School of Instrument and Electronics,North University of China,Taiyuan 030051,China;Ceyear Technologies Co.,Ltd.,Qingdao 266555,China;Technology on Electronic Test&Measurement Laboratory,Qingdao 266555,China)

机构地区：[1]中北大学仪器与电子学院,太原030051 [2]中电科思仪科技股份有限公司,青岛266555 [3]电子测试技术重点实验室,青岛266555

出　　处：《电子测量技术》2022年第16期42-46,共5页Electronic Measurement Technology

摘　　要：针对目前太赫兹混频器测试方法功能单一、测试效率低等缺点,文章在基于矢网的微波混频器扫频测试方法的基础上,提出了适用于太赫兹混频器的扫频测试方法。该方法将矢网的测试频率由微波波段提高到110 GHz以上的太赫兹波段,实现了太赫兹混频器的快速测试。为了证明新方法的可靠性,分别用“信号源+频谱仪”测试方法和本文提出的测试方法对150~170 GHz四次谐波混频器进行实验验证。本文提出的扫频测试方法,不仅实现了太赫兹混频器的变频损耗、回波损耗等参数的快速测试,而且与“信号源+频谱仪”测试方法所测得得变频损耗结果互相吻合,对矢量网络分析仪在太赫兹频段的测试应用具有重要意义。Aiming at the disadvantages of the terahertz mixer test method,such as single function and low-test efficiency,this paper proposes a terahertz mixer sweep frequency test method based on the sweep test method of microwave mixer.This method can increase the test band from microwave band to terahertz band above 110 GHz,and realize the frequency sweep frequency test of conversion loss and return loss of the terahertz mixer.Furthermore,the“signal generator+spectrum analyzer”test method and the test method proposed in this paper are used to verify the 150~170 GHz fourth-harmonic mixer.The results show that the sweep frequency test method proposed in this paper not only achieves the rapid measurement of conversion loss and return loss of the terahertz mixer,but also agrees with the conversion loss measured by the“signal generator+spectrum analyzer”test method,which is of great significance to the test application of the vector network analyzer in the terahertz band.

关 键 词：矢量网络分析仪 太赫兹混频器 变频损耗 回波损耗 

分 类 号：TM931[电气工程—电力电子与电力传动]