用于车载终端通信的双频段全向单极子天线  

Dual-Band Omnidirectional Monopole Antenna for Vehicle-Mounted Terminal Communication

作　　者：左昌余 朱奎 廖同庆[2] 周刚 赵读俊 ZUO Changyu;ZHU Kui;LIAO Tongqing;ZHOU Gang;ZHAO Dujun(Anhui Qingyu Photoelectric Technology Co.Ltd,Hefei 230061,China;School of Integrated Circuits,Anhui University,Hefei 230601,China)

机构地区：[1]安徽庆宇光电科技有限公司,安徽合肥230061 [2]安徽大学集成电路学院,安徽合肥230601

出　　处：《安庆师范大学学报（自然科学版）》2023年第1期48-52,共5页Journal of Anqing Normal University(Natural Science Edition)

基　　金：安徽省重点研究与开发计划(202104g01020005)。

摘　　要：为满足露天矿山车载终端通信的需求,本文设计了一款能满足4G/5G通信的双频全向单极子天线。首先,基于共面波导馈电结构,设计了全向印刷矩形单极子单频天线;其次,在馈线左侧加载一个接地矩形辐射枝节以实现双频谐振,并在馈线右侧加载接地矩形辐射枝节以拓宽天线带宽;最后,在矩形单极子天线中心开十字型槽并对接地板做渐变处理,使天线在较宽频带内有良好的阻抗匹配。仿真和实测结果表明,该款天线具备双频段全向的辐射特性,完全满足设计要求。Aiming at the demand of open-pit mine vehicle-mounted terminal communication,an omnidirectional monopole antenna which can meet 4G/5G communication at the same time is designed in this paper.Firstly,an omnidirectional printed monopole single frequency antenna is designed based on coplanar waveguide feeding.Secondly,dual-frequency resonance is realized by loading a grounded rectangular radiating stub on the left side of the feeder.Thirdly,antenna bandwidth is widened by loading a grounded rectangular radiating stub on the right side of the feeder.Finally,a cross-shaped slot is opened in the center of the rectangular monopole antenna and gradient processing is done at the grounding plate to make the antenna has a good impedance matching in a wider frequency band.Simulation and measurement results show that this antenna has dual-band and omnidirectional radiation characteristics,which meets the design requirements completely.

关 键 词：4G/5G通信 单极子天线 共面波导 双频段 全向 车载终端通信 

分 类 号：TN821.3[电子电信—信息与通信工程]