非大气窗口毫米波长槽漏波波导天线的设计  

Design of Non-atmospheric Window Millimeter Wave Long Slot Antenna

作　　者：赵伟[1] 李晓[1] 亓东[1] 

机构地区：[1]中国空空导弹研究院第八研究所,洛阳471009

出　　处：《微波学报》2010年第2期43-46,共4页Journal of Microwaves

摘　　要：设计了一种非大气窗口毫米波长槽漏波波导天线,分析槽的长度、宽度对天线性能的影响,并运用插值法缩减天线槽长,优化天线的性能,减轻天线的重量。优化后的天线具有高增益、低副瓣、窄波束、主波束前倾、E面方向图近似圆形等特点。在结构设计上,采用UG385波导接口连接射频部件,提高馈电与天线的匹配性;同时,对天线内表面进行镀金处理,提高天线表面的光洁度,减小损耗。仿真和测试结果表明,该天线能够满足非大气窗口毫米波雷达对天线的指标要求。A long slot waveguide antenna of millimeter wave non-atmospheric window is designed in this paper.The effect of length and width of slot on antenna performance is analyzed and the performance is optimized by using the interpolation method to curtail slot length.The antenna has excellent characters of high gain,low sidelobe,narrow beam,pitched beam and the spherical E-directional radiation pattern.UG385 waveguide interface is used for improving matching performance between antenna and feed.Gold plating is used for decreasing loss on the internal surface of waveguide.Good agreement is obtained between measurement and simulation results,and this antenna can satisfy the demand of performance index.

关 键 词：非大气窗口 波导天线 长槽 

分 类 号：TN820[电子电信—信息与通信工程]