J4 ›› 2014, Vol. 41 ›› Issue (6): 188-194.doi: 10.3969/j.issn.1001-2400.2014.06.031

• 研究论文 • 上一篇    下一篇



  1. (西安电子科技大学 电子装备结构设计教育部重点实验室,陕西 西安  710071)
  • 收稿日期:2013-12-25 出版日期:2014-12-20 发布日期:2015-01-19
  • 通讯作者: 王猛
  • 作者简介:王猛(1986-),男,西安电子科技大学博士研究生,E-mail: lemonwm@163.com.
  • 基金资助:

    国家自然科学基金资助项目(51035006, 51205301)

Effect of surface errors on the average power pattern  of reflector antennas

WANG Meng;DUAN Baoyan;WANG Wei   

  1.  (Ministry of Education Key Lab. of Electronic Equipment Structure, Xidian Univ., Xi'an  710071, China)
  • Received:2013-12-25 Online:2014-12-20 Published:2015-01-19
  • Contact: WANG Meng



关键词: 反射面天线, 随机误差, 系统误差, 相关距离, 平均功率方向图


The method for evaluating the average power pattern of reflector antennas is proposed when they are subjected to random errors and systematic errors. Firstly, the average expression for the random phase error of the aperture field is derived by analyzing the manufacturing errors of the single panel and misaligned errors of panel frames. Subsequently, the closed-form expression for the tapered illumination correlation function is derived by incorporating the axial defocus of the feed caused by systematic deformation. Then a novel mathematical model is developed to evaluate the average power pattern efficiently caused by the random error and systematic error. Finally, detailed parametric simulations are performed based on a reflector antenna with a 65m diameter to investigate the overall effect of the random error and systematic error on the performance, and reference advices are given finally.

Key words: reflector antennas, random errors, systematic errors, correlation interval, average power pattern