一种应用于车载通信的多频段全向天线  

A Multiband Omnidirectional Antenna for Vehicular Communication

作　　者：许纬杰 袁家德[1] XU Wei-jie;YUAN Jia-de(College of Physics and Information Engineering,Fuzhou University,Fuzhou 350116,China)

机构地区：[1]福州大学物理与信息工程学院,福州350116

出　　处：《微波学报》2023年第4期28-32,共5页Journal of Microwaves

基　　金：国家自然科学基金(62071125);福州市科技创新平台项目(2021-P-029)。

摘　　要：文中设计了一种应用于车载通信的多频段全向天线。该天线由印制于FR4介质基板正反两面的金属贴片组成,通过在主辐射贴片上端加载弯折枝节、在侧边加载边缘谐振单元、在背面加载电耦合电感电容(ELC)谐振单元实现了其多频段特性;在主辐射贴片上蚀刻C形槽拓宽了天线的中频带宽;天线的尺寸为58 mm×42 mm×1.6 mm。测试结果表明:S_(11)≤-10 dB的阻抗带宽为0.82~0.96 GHz、1.7~2.69 GHz、3.34~3.66 GHz、4.81~4.97 GHz,覆盖了2G、3G、4G、5G等频段。该天线具有小尺寸、宽频带以及全向性好等优点,可以应用于车载通信或其它移动通信场景。A multiband omnidirectional antenna for vehicular communication is designed in this paper.The antenna is composed of metal patches printed on both sides of FR4 dielectric substrate.The multiband characteristics of the antenna can be obtained by loading a meandering strip on top of the main radiation patch,loading two edge resonant cells on the side,and loading two electric field coupled inductor-capacitor(ELC)resonant cells on back of the main radiation patch,respectively;a C-shaped slot is etched on the main radiation patch to broaden the middle-frequency bandwidth of the antenna.The proposed antenna size is 58 mm×42 mm×1.6 mm,and the measured results show that the S_(11)≤-10 dB impedance bandwidth is 0.82-0.96 GHz,1.7-2.69 GHz,3.34-3.66 GHz and 4.81-4.97 GHz,respectively,covering the frequeny bands of 2G,3G,4G,5G and et al.The antenna has the advantages of small size,wide band and good omnidirectional radiation.It can be applied to vehicular communication or other mobile communication scenarios.

关 键 词：车载通信 全向天线 小型化 多频段 电耦合电感电容 

分 类 号：U463.673[机械工程—车辆工程] TN822[交通运输工程—载运工具运用工程]