WiFi/5G双频段列车车内通信天线设计  

A Design of WiFi/5G Dual Band Antenna for Railway Vehicle Internal Communication

作　　者：邓文强 柳溢航 肖波[1] 吴彦良[1] Deng Wenqiang;Liu Yihang;Xiao Bo;Wu Yanliang(Southwest Jiaotong University,Chengdu 610054,China)

机构地区：[1]西南交通大学,成都610054

出　　处：《铁路通信信号工程技术》2019年第1期22-26,共5页Railway Signalling & Communication Engineering

基　　金：国家自然科学基金高铁联合基金(NSFCU1734209);中国铁路总公司科技研究开发计划课题(2017X013-A)

摘　　要：针对列车车内组网通信提出一种新型小型化2.4/3.4 GHz的WiFi/5G双频段微带贴片天线。天线由双圆环辐射贴片、接地板及FR4介质基板构成。详细讨论两圆环半径和宽度对阻抗特性的影响,并对其进行辐射特性和增益特性的分析。该天线的谐振中心频率为2.4/3.4 GHz,回波损耗均小于-10 dB,具有双频带特性,且天线的实测结果与仿真结果非常相似。该天线在无线通信中具有非常重要的应用价值。A new type of 2.4/3.4 GHz WiFi/5G dual band microstrip patch antenna is proposed for railway vehicle internal communication.The antenna is composed of double ring radiation patch,ground plate and FR4 medium substrate.The infl uence of two ring radius and width on the impedance characteristics are discussed in detail,and the analysis of the radiation and gain characteristics then have been carried out.The resonant frequency of the antenna is 2.4/3.4 GHz,the return loss is less than-10 dB,and the antenna has dual band characteristics.The measured results and the simulation results of the antenna are very similar.The antenna is very valuable in wireless communications.

关 键 词：微带贴片天线 小型化 双频段 WIFI 5G 

分 类 号：U285.2[交通运输工程—交通信息工程及控制]