Journal of Systems Engineering and Electronics ›› 2011, Vol. 33 ›› Issue (9): 1959-1962.doi: 10.3969/j.issn.1001-506X.2011.09.09

• 电子技术 • 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
  • 出版日期:2011-09-17 发布日期:2010-01-03

Inverse derivation of adjustment quantity of large segmented reflector antenna panel from far field pattern

WANG Wei, SONG Li-wei, LI Peng, MA Hong-bo   

  1. The Ministry of Education Key Laboratory of Electronic Equipment Structure Design, Xidian University, Xi’an 710071, China
  • Online:2011-09-17 Published:2010-01-03


针对大型分块反射面天线面板调整次数多、效率低的问题,提出了一种从天线远场方向图反推出面板调整量进而快速调整的方法。应用物理光学(physical optics, PO)法建立了表面节点位移与远区电场的线性关系,将面板调整向量与远区辐射场强用线性方程组联系起来。利用奇异值分解(singular value decomposition, SVD)法求解线性方程组得调整向量,从而实现由方向图反推调整量的目的。对某工程案例进行了分析计算,给出了相应的数据与曲线,证明了所提方法的有效性,为大型天线反射面板的精确调整提供了指导。


Aiming at the ineffective panel adjustment of the large segmented reflector antenna, a method for the determination of adjustment quantity of a panel from far field pattern and quick adjusting is presented. Using the method of physical optics (PO), the relationship between the far field value and the node displacement is derived. Then the panel adjustment vector is related to far field pattern with linear equations. Singular value decomposition (SVD) is used to solve a set of adjustment quantity of panel, which will be used for quick adjusting. An experimental reflector antenna is analyzed and some related data and figures are obtained. The effectiveness of the method mentioned above is also discussed, and the results are going to be useful guide for panel adjusting of large reflector antenna efficiently and precisely.