摘要
针对泄漏同轴电缆作为分布式传感器应用于物联网和智能家居的室内安防入侵检测时,运用全波仿真软件HFSS不能有效仿真长距离的耦合漏缆的问题,提出了一种等效电路模型.利用参数提取软件,先提取单个开槽的缝隙单元的等效电路模型,然后借助于传输线理论,利用四个传输矩阵级联得到整段漏泄同轴电缆的传输矩阵.并考虑两根漏缆缝隙间相互耦合,提出了表征耦合特性的等效电路模型.将等效电路模型利用商用软件高级设计系统(advanced design system, ADS)进行电路搭建与仿真.仿真结果表明,本文提出的两根漏缆的等效电路模型与全波仿真结果非常符合,可以快速地仿真长距离的耦合漏缆结构,并大大节约了仿真时间.
When the leaky coaxial cable is used as a distributed sensor for indoor security intrusion detection in the internet of things and smart home,the simulation of long distance coupling can not be effectively simulated by full wave simulation software HFSS,and an equivalent circuit model is proposed.By using the parameter extraction software,we first extract the equivalent circuit model of the slot cell with single slotting.Then,with the help of transmission line theory,the transmission matrix of these 4 transmission lines is cascaded to get the transmission matrix of the whole leaky coaxial cable.The coupling between two leaky cables is considered,and an equivalent circuit model is proposed to characterize the coupling characteristics.The equivalent circuit model is built and simulated by using the commercial advanced design system(ADS)software.The experimental results show that the equivalent circuit models of two leaky cables are very consistent with the full wave simulation results,which can quickly simulate the long distance coupling leaky cable structure and greatly save the simulation time.
作者
刘源
李建杰
王宁
于慧洁
梁晨
LIU Yuan;LI Jianjie;WANG Ning;YU Huijie;LIANG Chen(School of Optical-electrical and Computer Engineering,University of Shanghai for Science and Technology,Shanghai 200093,China)
出处
《电波科学学报》
EI
CSCD
北大核心
2019年第2期225-230,共6页
Chinese Journal of Radio Science
基金
国家自然科学基金(61601291)
关键词
漏泄同轴电缆
等效电路模型
缝隙单元
传输矩阵
耦合
leaky coaxial cable
equivalent circuit model
slot element
transfer matrix
coupling
