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.
作者
阮云国
邓智勇
RUAN Yunguo;DENG Zhiyong(The 54th Research Institute of CETC,Shijiazhuang 050081,China)
出处
《无线电工程》
北大核心
2022年第9期1673-1677,共5页
Radio Engineering
基金
国家部委基金资助项目。
关键词
反射面
五喇叭
单脉冲
介质加载
reflector
five-horn
monopulse
dielectric-loaded
