毫米波超宽带阵列天线设计  

Design of ultra⁃wideband millimeter wave array antenna

作　　者：武风波[1,2] 杨财正 王树奇 WU Fengbo;YANG Caizheng;WANG Shuqi(School of Communication and Information Engineering,Xi’an University of Science and Technology,Xi’an 710054,China;Xi’an Key Laboratory of Network Convergence Communication,Xi’an 710054,China)

机构地区：[1]西安科技大学通信与信息工程学院,陕西西安710054 [2]西安市网络融合通信重点实验室,陕西西安710054

出　　处：《电子设计工程》2024年第23期168-172,共5页Electronic Design Engineering

基　　金：国家自然科学基金(62271386)。

摘　　要：针对传统微带天线在5G毫米波频段的应用过程中无法做到对其频段进行全覆盖的问题,设计了一款应用于5G毫米波频段的超宽带矩形微带天线。该天线通过在传统辐射贴片上刻蚀非对称的矩形凹槽以增加贴片表面的电流流经路径从而拓展天线带宽。同时,为了提高天线增益也进行了1×2阵列天线设计,并在两天线单元之间的接地板上添加T型枝节以降低彼此之间的耦合。通过仿真软件得到设计的阵列天线低于-10 dB的阻抗带宽为19.95~42.45 GHz,相对带宽达到72.1%,在工作带宽内隔离度不大于-20 dB,最大增益为5.54 dBi。In order to solve the problem that the traditional microstrip antenna can not fully cover the 5G millimeter wave band in the application process,an ultra-wideband rectangular microstrip antenna applied to the 5G millimeter wave band is designed.The antenna extends the antenna bandwidth by etching asymmetric rectangular grooves on the traditional radiation patch to increase the current flow path on the surface of the patch.At the same time,in order to improve the antenna gain,1×2 array antenna design,and add T-shaped branches on the ground plate between the two antenna units to reduce the coupling between them.Through the simulation software,the impedance bandwidth of the designed array antenna below-10 dB is 19.95~42.45 GHz,the relative bandwidth is 72.1%,the isolation within the operating bandwidth not exceeding-20 dB,and the maximum gain is 5.54 dBi.

关 键 词：5G毫米波 超宽带 微带阵列天线 高隔离度 

分 类 号：TN822[电子电信—信息与通信工程]