一种具有自校准功能的宽带宽角贴片天线设计  

Design of A Wide-band Wide-angle Patch Antenna with Self Calibration Function

作　　者：袁建涛[1] 汤晓云 张闻涛[1] 稂华清[1,3] YUAN Jian-tao;TANG Xiao-yun;ZHANG Wen-tao;LANG Hua-qing(China Airborne Missile Academy,Luoyang 471009,China;The First Military Representative Office of Air Force Equipment in Luoyang District,Luoyang 471009,China;Aviation Key Laboratory of Science and Technology on Airborne Guided Weapons,Luoyang 471009,China)

机构地区：[1]中国空空导弹研究院,洛阳471009 [2]空装驻洛阳地区第一军代表室,洛阳471009 [3]航空制导武器航空科技重点实验室,河南洛阳471009

出　　处：《舰船电子对抗》2020年第6期92-95,114,共5页Shipboard Electronic Countermeasure

摘　　要：提出了一种工作在Ku波段的宽带宽角扫描天线,该天线采用带状线缝隙耦合馈电。通过在耦合缝隙上方介质板中心挖空气腔及在馈电带状线四周打金属化过孔去除高次模,实现宽带宽角扫描及低交叉极化特性,同时利用小孔耦合设计使天线具有自校准功能。仿真结果表明,在4 GHz带宽内,天线扫描角度在±60°范围内,有源驻波小于3.2,阵列天线在E面和H面均能实现宽角扫描,且自校准耦合量波动范围小,使天线具备在线校准功能。A wide-band wide-angle scanning antenna working in Ku band is proposed in the paper,which is fed by stripline and slot coupling.The high-order mode is removed by hollowing air cavity in the center of medium plate above the coupling slot and punching metallized vias around the feeding stripline,then the antenna has wide-band wide-angle scanning and low cross-polarization characteristics,at the same time the antenna has the function of self calibration through using the slot coupling design.The simulation results show that in 4 GHz bandwidth,active voltage standing wave ratio(VSWR)is less than 3.2 when antenna array scans during±60°,and the array antenna can realize wide-angle scanning in both E plane and H plane,and the coupling level of self calibration is stable,which enable antenna array have online calibration function.

关 键 词：耦合馈电 宽带宽角 低交叉极化 自校准 

分 类 号：TN821[电子电信—信息与通信工程]