地物介电常数与电磁波频率变化关系研究  

Study for Dielectric Constant of Terrains Varying with Frequency of Electromagnetic Wave

作　　者：赵鹏 李慧明[1] 李善斌[1] ZHAO Peng;LI Huiming;LI Shanbin(National Key Laboratory of Electromagnetic Environment,China Research Institute of Radiowave Propagation,Qingdao 266000,China)

机构地区：[1]中国电波传播研究所电波环境特性及模化技术重点实验室,山东青岛266000

出　　处：《电声技术》2020年第12期75-77,80,共4页Audio Engineering

摘　　要：地物介电常数是地物散射特性方面的重要参数,其与电磁波频率具有密切关系。使用终端开路法,通过矢量网络分析仪对土壤和玉米等地物开展宽频段的介电常数测量试验,分析地物介电常数随电磁波频率在8 GHz到40 GHz的变化规律,有效支撑不同频段下地物散射特性的研究。Dielectric constant of terrains is the important parameter of scattering of terrains,and it has intimate connection with frequency of electromagnetic wave.This paper,through vector network analyzer,uses the open-ended manner to test the dielectric constant of soil and corn in a wide bandwidth.It makes an analysis that dielectric constant of terrains varies with the frequency of microwave at the range from 8 GHz to 40 GHz.The conclusion could support the study of scattering characteristic of terrains at different frequencies.

关 键 词：介电常数 电磁波频率 地物散射 

分 类 号：TU528.45[建筑科学—建筑技术科学]