北京邮电大学学报

  • EI核心期刊

北京邮电大学学报 ›› 1998, Vol. 21 ›› Issue (4): 75-78.

• 研究报告 • 上一篇    下一篇

偏置角对偏置抛物面天线特性的影响*

吕雪峰, 董维仁, 杨晶, 向福   

  1. 北京邮电大学电信工程学院, 北京 100876
  • 收稿日期:1997-10-09 出版日期:1998-09-10
  • 基金资助:
    国家自然科学基金资助项目(69471019)

Effect of Offset Angle on Offset Parabolic Antenna

Lü Xuefeng, Dong Weiren, Yang Jing, Xiang Fu   

  1. School of Telecommunication Engineering, Beijing University of Posts and Telecommunications, Beijing 100876
  • Received:1997-10-09 Online:1998-09-10
  • Supported by:
     

摘要: 以偏置角作为变化因素来分析研究偏置抛物面天线的远场特性, 采用表面电流法计算远场的方向图、 半功率圆以及交叉极化电平等参数, 并对几种不同偏置角的远场特性进行了计算和分析比较.结果表明, 随着偏置角的变化, E面内远场特性变化不大, 而H面内的远场特性发生了显著变化.

关键词: 偏置抛物面天线, 偏置角, 交叉极化电平

Abstract: Offset angle is taken as a variable to analyzethe far-field performance of offset parabolic antenna, surface current methodis used to calculate the far-field patterns, half power circles and cross-polar level etc.. Several cases with different offset angle are computed and analyzed.Little change is shown in the far-field performance when offset angle changedin E-plane, and apparent change is seen in H-plane.

Key words: offset parabolic antennas, offset angle, cross-polar level

中图分类号: