摘要
应用物理光学方法对用于卫星通信的多波束抛物面天线进行了设计与分析,提出了任意形状口径面的处理思想,可方便、有效地计算口径面形状任意、馈源数目任意、馈源放置位置任意的多波束抛物面天线的方向图.最后,用波束优化思想对馈源尺寸及位置进行不断调整,从而使各波束半功率波瓣宽度及偏焦角度达到设计要求,并给出了各组波束方向图.将给定馈源尺寸的抛物面天线的计算结果与GRASP软件仿真结果比较,具有良好的一致性.
A design and accurate analysis of a multibeam parabolic reflector has been made for satellite communication by the physical optics method (PO method). An idea for treating the arbitrary reflector aperture is presented, which is convinient and efficient to calculating the radiation characteristics of the multibeam parabolic reflector antenna with the multifeed and arbitrary reflector aperture. Finally, based on the concept of beam optimization, the size and position of reflector feeds are modified to meet the requirements. The radiation patterns of each beam are also given. The results obtained are in good agreement with GRASP softwares simulated values.
出处
《西安电子科技大学学报》
EI
CAS
CSCD
北大核心
2003年第3期399-402,共4页
Journal of Xidian University
关键词
多波束
抛物面天线
任意形状口径面
馈源
物理光学
multi-beam
multi-feed
arbitrary reflector aperture
parabolic reflector antenna
