A Compact Filtering Antenna System with Wide-Angle Scanning Capability for V2I Communication  

作　　者：Chuang HAN Tong LI Zhaolin ZHANG Ling WANG Guangwei YANG 

机构地区：[1]School of Electronics and Information,Northwestern Polytechnical University,Xi'an 710072,China [2]School of Electronic Engineering and Computer Science,Queen Mary University of London,London,E14NS,UK

出　　处：《Chinese Journal of Electronics》2024年第2期516-526,共11页电子学报（英文版）

基　　金：supported by the National Natural Science Foundation of China(Grant No.62271412);the Natural Science Basic Research Plan in Shaanxi Province of China(Grant No.2022KJXX-65).

摘　　要：A compact filtering antenna system with wide-angle scanning is proposed for vehicle to infrastructure(V2I)communication which would handle complex communication scenarios.In this work,a wide beam filtering antenna is realized by using some inductive resistance structures such as metal pins and pillars,and capacitive structures such as slots,parasitical patches to produce the radiation nulls at two sides of the operating frequency band and improve the impedance matching in the passband.Meanwhile,the wide beam capability is also realized by the above structure.Furthermore,two H-and E-plane linear arrays are designed for the beam scanning capability with filtering characteristics based on the proposed antenna.To verify the proposed design concept,a prototype is fabricated and measured.The measurement and simulation agree well,demonstrating an excellent filtering characteristic with the operating frequency band from 3.18 to 3.45 GHz(about 8.1%),the high total efficiency of about 88%,and 3-dB-beamwidth of more than 100°and 120°in the above two arrays,respectively.Additionally,the proposed arrays can realize the beam scanning up to the coverage of 112°and 120°with a lower gain reduction and a good filtering characteristic,respectively.

关 键 词：Filtering antenna Wide beam Beam scanning Beam steering Phased array. 

分 类 号：TN820[电子电信—信息与通信工程] TN713