摘要
针对微带贴片天线窄带的缺点,设计了一种多层结构的宽带贴片天线。该天线单元采用多层结构的孔径耦合微带贴片形式,通过同轴线到微带线的射频正交变换进行馈电,从而达到宽带的目的。同时,对该天线进行了仿真,并制作了一个16单元的子阵进行实测。测试结果表明:该天线单元的相对带宽(VSWR<2)达到90%,具有宽频带、体积小、低剖面等特点,适用于相控阵雷达和通信系统。
A design of broad-band stacked patch structure antenna is presented,based on the class of the aperture coupled stacked patches,in order to overcome the defect of traditional structure as narrow band.Performance is aimed at achieving both broad-band by utilizing the coaxial-to-microstrip RF orthogonal transition to fed the antenna.The simulation results are presented and a 16-element uniform linear array is designed.The measured results shows that an 90％ relative band of VSWR＜2 is achieved.This new antenna has wide-band,small volume and low-profile,and is suitable for phased array Radar and communication system.
出处
《现代雷达》
CSCD
北大核心
2014年第11期54-57,共4页
Modern Radar
关键词
微带天线
宽带
多层结构
低剖面
microstrip antenna
broad-band
stacked-structure
low-profile
