摘要
设计了一款层叠微带多频天线,可同时覆盖在DSRC(专用短距离通信,Dedicated Short Range Communications)和5G毫米波频段。通过将工作于低频段的矩形贴片天线与工作于毫米波频段的四元阵列天线组合,实现天线的多频段工作。基于有限元法高频结构仿真(High Frequency Structure Simulator,HFSS)对多频天线的S参数及辐射性能进行仿真。仿真分析结果表明,该天线反射系数小于-10 dB的频段为5.8813~5.9283 GHz、28.1603~29.3476 GHz和30.3419~31.1353 GHz,并通过刻蚀缺陷接地结构(DGS)使得天线在高频段的端口隔离度平均提高了14 dB,且在高频段显示出良好的全向性。该多频天线具有剖面低、隔离度高等优点,可应用于未来车用无线通信系统。
A stacked patch mult-band antenna was designed,which could cover DSRC(Dedicated Short Range Communications)and 5G millimeter wave band at the same time.The rectangular patch antenna working in low frequency band was combined with 2*2 array antenna working in millimeter wave band to realize multi band operation of antenna.The S-parameters and radiation performance of the multi frequency antenna were simulated by High Frequency Structure Simulator based on the concept of finite element method.The simulation results show that the frequency bands with reflection coefficient less than-10 dB are 5.8813-5.9283 GHz,28.1603-29.3476 GHz and 30.3419-31.1353 GHz.The port isolation of the antenna is improved by 14 dB on average by etching DGS(Defected Ground Structure),and the antenna shows good omnidirectional performance in high frequency band.The mult-band antenna has the advantages of low profile and high isolation,which can be used in future vehicle wireless communication system.
作者
刘晓伟
安永丽
LIU Xiao-wei;AN Yong-li(College of Artificial Intelligence,North China University of Science and Technology,Tangshan Hebei 063210,China)
出处
《华北理工大学学报(自然科学版)》
CAS
2021年第1期108-113,共6页
Journal of North China University of Science and Technology:Natural Science Edition
基金
国家重点研发计划项目(2017YFE0135700)
河北省高层次人才资助项目(A201903011)
河北省自然科学基金(F2018209358)
华北理工大学博士科研启动金。