一种Ka频段单脉冲馈源的设计  

Design of a Ka-band Monopulse Feed

作　　者：阮云国[1] 邓智勇[1] RUAN Yunguo;DENG Zhiyong(The 54th Research Institute of CETC,Shijiazhuang 050081,China)

机构地区：[1]中国电子科技集团公司第五十四研究所,河北石家庄050081

出　　处：《无线电工程》2022年第9期1673-1677,共5页Radio Engineering

基　　金：国家部委基金资助项目。

摘　　要：设计了一种新型单脉冲馈源,该馈源由5个介质加载方波导喇叭和4个辅助喇叭组成。与传统5喇叭馈源相比,通过采用介质加载和辅助喇叭技术,该单脉冲馈源的照射电平、差增益和差零深等性能得到显著改善。研发了工作在Ka频段的单脉冲馈源,给出了馈源设计方案和工艺实现方法。测试结果表明,馈源在整个使用频段内驻波小于1.4∶1,和方向图边缘照射电平在-12~-14 dB,差方向图差增益优于-2 dB,差零深优于-32 dB。A novel monopulse feed is designed,which consists of five dielectric-loaded square horns and four assisting horns.Compared with traditional five-horn feed,the edge taper of the sum beam,the differential gain and null depth of the differential beam are improved by using dielectric-loaded and assisting horns technology.A prototype of the monopulse feed operating in Ka-band is developed.The scheme and machining method of the design are proposed.The measured results show that the VSWR is less than 1.4∶1,the edge taper of the sum beam is about-12~-14 dB,the differential gain of the differential beam is better than-2 dB,and the differential null depth of the differential beam is better than-32 dB.

关 键 词：反射面 五喇叭 单脉冲 介质加载 

分 类 号：TN820.2[电子电信—信息与通信工程]