尘埃等离子体微波衰减测量中应注意的问题  

Problems in Microwave Attenuation Measurement of Dusty Plasma

作　　者：王彦同 蒋林 石雁祥 WANG Yantong;JIANG Lin;SHI Yanxiang(Department of Electronic and Engineering,Yili Normal University,Yining 835000,China;Laboratory of Signal Detection and Control Technology,Yili Normal University,Yining 835000,China)

机构地区：[1]伊犁师范大学电子与工程学院,伊宁835000 [2]伊犁师范大学信号检测与控制技术重点实验室,伊宁835000

出　　处：《实验科学与技术》2023年第5期49-53,共5页Experiment Science and Technology

基　　金：伊犁师范大学校级青年项目(KY082022015);国家自然科学基金(12065023);电波环境特性及模化技术重点实验室开放课题资助项目(JW2021-030)。

摘　　要：尘埃等离子体参数是影响尘埃等离子体电磁特性的重要因素,而尘埃等离子体中微波衰减系数的测量是尘埃等离子体参数反演的关键环节。该文介绍了微波衰减测量原理,陈述了由尘埃等离子体产生装置、矢量网络分析仪、宽带喇叭天线等构成的测量系统对微波衰减测量的过程和必要设置。针对环境基底的影响、反射信号的干扰、设备参数设置以及实验数据处理等影响测量结果方面的问题给出说明和初步解决方法,并对仍可能存在的误差进行了讨论,为完善尘埃等离子体微波衰减测量方法提供参考。The parameters of dusty plasma are important factors affecting the electromagnetic characteristics of dusty plasma,and the measurement of microwave attenuation coefficient in dusty plasma is the key link in the inversion of dusty plasma parameters.In this paper,the principle of microwave attenuation measurement was introduced,and the process and necessary setting of microwave attenuation measurement by the measurement system composed of dust plasma generation device,vector network analyzer,broadband horn antenna and so on were stated.The influence of environmental substrate,the interference of reflected signal,the parameter setting of equipment and the experimental data processing on the measurement results were explained and preliminarily solved.The possible errors were discussed,which provides a reference for improving the microwave attenuation measurement method of dust plasma.

关 键 词：尘埃等离子体 微波传输 微波衰减测量 

分 类 号：O53[理学—等离子体物理]