北京航空航天大学学报 ›› 2002, Vol. 28 ›› Issue (5): 574-577.

• 论文 • 上一篇    下一篇

有限元方法设计赋形波束缝隙面阵馈电网络

王杰, 吕善伟   

  1. 北京航空航天大学 电子工程系
  • 收稿日期:2001-03-05 出版日期:2002-05-31 发布日期:2010-09-25
  • 作者简介:王 杰(1959-),男,浙江舟山人,博士生,现在中国航天科工集团25所,100854,北京.

Feed Network Design of Shaped Beam Slotted Array by Finite Element Method

WANG Jie, Lü Shan-wei   

  1. Beijing University of Aeronautics and Astronautics, Dept. of Electronic Engineering
  • Received:2001-03-05 Online:2002-05-31 Published:2010-09-25

摘要: 采用缝隙倾角变化实现幅度加权,采用等高但不等宽的波导实现相位加权,并设计了过渡段以减少反射,可以对赋形波束方向图面阵实现所需要的馈电.为了获得需要的幅度和相位,用有限元方法对缝隙单元尺寸、幅度激励和移相网络进行了数值仿真.通过调整几何尺寸来实现所需要的幅度与相位要求及阻抗匹配.最后给出了1个缝隙阵列天线的设计实例,发现理论计算的赋形方向图与实际测试结果在赋形波束主瓣内吻合很好.

Abstract: Changing the angles of the centered-inclined slots was used to design the array feed's amplitude distribution. Changing the widths and lengths of the waveguides was used to design the array feed's phase distribution. A new design method of the feed network of shaped beam slotted array by finite element method was presented. In order to obtain the amplitudes and phases needed, the feed slot sizes, the feed excitation amplitudes and the phase network were calculated by finite element method. An example of design indicates the theoretical and experimental results are consistent well in the main shaped beam.

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