首页 | 本学科首页   官方微博 | 高级检索  
     

星载赋形反射面数传天线优化设计
引用本文:张新刚,吴刚,钟鹰. 星载赋形反射面数传天线优化设计[J]. 宇航学报, 2012, 33(3): 374-379. DOI: 10.3873/j.issn.1000-1328.2012.03.014
作者姓名:张新刚  吴刚  钟鹰
作者单位:中国空间技术研究院西安分院, 西安 710100
基金项目:收稿日期:20110303; 修回日期:20110922
摘    要:为了使星载赋形反射面数传天线的波束形状满足设计要求,应用Minimax算法对其进行了优化设计。首先基于几何光学原理得到反射面中截线的初始形状,然后采用Newton插值函数对中截线进行拟合并把插值函数的系数作为优化变量,最终利用Minimax算法对优化变量进行调整来使获得理想的赋形波束。通过对一个X波段赋形反射面天线优化结果的分析及与基于几何光学原理综合算法所得结果的对比,表明此方法的有效性和优越性。数值仿真结果表明:该方法能够保证覆盖角域内任意一点的增益均高于设计指标要求。

关 键 词:数传天线  反射面天线  赋形波束  优化设计  
收稿时间:2011-03-03

Optimizition Design of Shaped Reflector Data Transmission Antenna on Satellite
ZHANG Xin-gang,WU Gang,ZHONG Ying. Optimizition Design of Shaped Reflector Data Transmission Antenna on Satellite[J]. Journal of Astronautics, 2012, 33(3): 374-379. DOI: 10.3873/j.issn.1000-1328.2012.03.014
Authors:ZHANG Xin-gang  WU Gang  ZHONG Ying
Affiliation:Xi’an Division, China Academy of Space Technology, Xi’an 710100, China
Abstract:To generate a far field pattern fulfilling the design requirements,an application of the Minimax method in the design of a shaped reflector data transmission antenna on satellite is presented.First,the initial shape of the middle transversal line is obtained based on geometric optics theory,then the Newton insert interpolation function is used to draw up it,finally the perfect contoured beam is obtained by adjusting the coefficients of the function through the Minimax method.To verify the validity and advantage of this method,the optimization results of a shaped reflector at X band are presented and compared with the results by geometric optics method.The numerical simulation results show that the gain is above the design requirements in all coverage areas.
Keywords:Data transmission antenna  Reflector antenna  Contoured beam  Optimization design
本文献已被 CNKI 等数据库收录!
点击此处可从《宇航学报》浏览原始摘要信息
点击此处可从《宇航学报》下载全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号