一种低剖面贴片天线在相控阵系统中的应用  

A Low Profile Patch Antenna Element for Phased Array Systems

作　　者：于大群[1,2] 冒蓉 

机构地区：[1]南京电子技术研究所,南京210039 [2]天线与微波技术重点实验室,南京210039 [3]北方信息控制集团有限公司,南京211153

出　　处：《现代雷达》2014年第10期66-69,共4页Modern Radar

摘　　要：设计了一种低剖面口径耦合馈电形式的贴片天线,对该天线在相控阵系统中的应用进行了研究。该天线单元采用带状线馈电,抑制了馈电网络电磁泄漏,同时提高了天馈线的集成度;采取空气介质,改善了天线的表面波特性,简化天线结构。文中依次给出了该贴片单元的仿真设计、阵列样机的性能试验、辐射效率评估及应用举例,从仿真和试验结果中可以看出,该天线形式具有良好二维扫描驻波特性,带内辐射效率可达到90%,同时具有低剖面、结构简单等特点,适于用作高机动、轻量化相控阵雷达系统的辐射单元。An aperture-coupled feed patch antenna with low profile is designed in this paper,and practical implementation of this antenna in phased array system is study.Using of stripline to feed in this patch antenna suppressed the radiation of feed work and improved the integration.Using air substrate in this antenna suppresses loss of surface wave and reduced the difficulty of fabrication.The design of antenna,performance of manufactured array,radiation efficiency and apply illustration are observed in this paper.This simulation results and measured results demonstrate this new antenna element has good performance with 14 ％ bandwidth for a wide angle scan,90 ％ radiation efficiency and low profile,and is suitable for light-duty phased array systems.

关 键 词：贴片天线 低剖面 相控阵 

分 类 号：TN822[电子电信—信息与通信工程]