北京航空航天大学学报 ›› 2001, Vol. 27 ›› Issue (1): 12-15.

• 论文 • 上一篇    下一篇

单脉冲环焦天线和差一体化设计

程臻1, 吕善伟1, 姜新发2   

  1. 1. 北京航空航天大学 电子工程系;
    2. 中国航天机电集团二院23所
  • 收稿日期:1999-08-25 出版日期:2001-01-31 发布日期:2010-11-19
  • 作者简介:程 臻(1962-),男,安徽怀宁人,博士生,现在中国航天机电集团二院23所,100854,北京.

Sum-Difference Unified Design of Monopulse Ring-Focus Antenna

CHENG Zhen1, Lü Shan-wei1, JIANG Xin-fa2   

  1. 1. Beijing University of Aeronautics and Astronautics, Dept. of Electronic Engineering;
    2. Beijing Institute of Radio Measurement
  • Received:1999-08-25 Online:2001-01-31 Published:2010-11-19

摘要: 分析了单脉冲环焦天线差通道性能较差的原因,推荐了适用的和差口径分布函数,得出了所需馈源差方向图计算式, 提出了和差性能一体化设计步骤.为了验证理论方法的正确性,以3.5m变极化赋形单脉冲环焦天线为例,用本文提出的方法修改设计,使"和差矛盾"由6.5dB减为4.2dB,差方向图分离角由1.9°降为1.4°.因此, 使用特殊设计的单脉冲馈源可望将归一化差斜率提高到1.4.

Abstract: The relatively poor performance of difference channel of a monopulse ring-focus antenna is accounted for, suitable aperture distribution functions are recommended, formulae of feed difference pattern needed are presented and sum-difference unified design method is put forward. To testify the theoretical method, the authors take a 3.5m C-band monopulse shaped ring-focus antenna with dual-polarization as an example. By using the presented method, the gain difference between the sum channel and the different channel is reduced from 6.5dB to 4.2dB , and the separation angle of the apexes of the different pattern of the antenna from 1.9° to 1.4°. Therefore, the normalized slope of difference pattern arrives at 1.4 with a particular monopulse feed.

中图分类号: 


版权所有 © 《北京航空航天大学学报》编辑部
通讯地址:北京市海淀区学院路37号 北京航空航天大学学报编辑部 邮编:100191 E-mail:jbuaa@buaa.edu.cn
本系统由北京玛格泰克科技发展有限公司设计开发