用于车载终端通信的双频段全向偶极子天线  

Dual-band omnidirectional dipole antenna for vehicle-mounted terminal communication

作　　者：朱奎 廖同庆[1] 左昌余 周刚 赵读俊 ZHU Kui;LIAO Tongqing;ZUO Changyu;ZHOU Gang;ZHAO Dujun(School of Integrated Circuits,Anhui University,Hefei 230601,China;Anhui Qingyu Photoelectric Technology Co.,Ltd.,Hefei 230061,China)

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

出　　处：《合肥工业大学学报（自然科学版）》2024年第2期195-199,共5页Journal of Hefei University of Technology：Natural Science

基　　金：安徽省重点研究与开发计划资助项目(202104g01020005)。

摘　　要：针对露天矿山车载终端通信的需求,文章基于山字型结构设计一款同时满足4G/5G通信的全向偶极子天线。基于双锥天线模型设计全向印刷偶极子单频天线,通过在两侧加载枝节引入高频谐振,并通过在倒三角辐射贴片上开L形缝隙和矩形缝隙实现频段的展宽及谐振频点的偏移;对两侧枝节的末端进行渐变处理,使天线的谐振频率在拐点处可以平滑地过渡,从而在较宽的频带内获得良好的阻抗匹配。仿真和实测结果表明,该天线具备双频段全向的辐射特性,完全满足设计要求,且结构简单小巧、容易安装、不易受到损坏。In order to satisfy the needs of open-pit mine vehicle-mounted terminal communication,an omnidirectional dipole antenna which can meet 4G/5G communication at the same time is designed.This antenna is based on a mountain-shaped structure.Firstly,an omnidirectional printed dipole single frequency antenna is designed based on biconical antenna model.Then,high frequency resonant point is introduced by loading branches on both sides.And frequency bands are extended and resonant frequency points are shifted by cutting L-shaped slits and rectangular slits on the inverted triangular radiation patch.Finally,for the sake of smooth transition at the inflection point of the antenna,gradient processing is done at the end of branches on both sides,so as to obtain 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.It has simple and compact structure,and is easy to install and not easy to be damaged.

关 键 词：车载终端通信 4G/5G通信 双频段 全向 偶极子天线 

分 类 号：TN821.4[电子电信—信息与通信工程]