摘要
针对波导缝隙天线阵工作带宽较窄、通常无法满足雷达系统的大带宽需求的问题,设计了一种Ka波段一体化开口波导阵列天线。天线由开口波导辐射器、功分器和校正网络经一体化设计,具有便于和有源器件集成、结构紧凑及重量轻等优点。实测证明：VSWR≤2带宽覆盖33.3~40 GHz（18.3%）;天线阵H面扫描角度达到±18°;设计思路和设计方法具有很好的可扩展性。
The bandwidth of the waveguide slot antenna is too narrow to meet the broadband requirement of radar system.An integrated open-ended waveguide array antenna in Ka-band is presented.The antenna is designed as an integration of open-ended waveguide radiating elements,power dividers and calibration network.Due to the highly integrative design method,the antenna has the advantages of compact structure and light weight.The measured results demonstrate that the antenna VSWR≤2,the bandwidth covers 33.3 ~ 40 GHz（ 18.3%）,and the scanning range on H plane of the radiation pattern reaches ±18°.The design has a good expandability.
出处
《无线电工程》
2016年第6期57-60,共4页
Radio Engineering
基金
国家自然科学基金资助项目(61371022)
关键词
阵列天线
开口波导
一体化设计
array antenna
open-ended waveguide
integrative design
