摘要
针对临近空间飞行器测控的需求,提出了一种Ka频段多波束天线。分析了天线的实现形式,讨论了偏馈馈源位置与覆盖区域的关系、焦径比对偏馈波束性能的影响以及副面大小对偏馈波束性能的影响。从中总结了规律,对天线的优化设计有一定的指导意义。
Aiming at the requirements of near space vehicle TT＆C,a Ka-band multiple-beam reflector antenna is proposed in this paper. The realization form of antenna is analyzed and the relation between coverage area and the position of offset feed is discussed. The influence of focus to diameter ratio and that of subreflector dimension on performances the offset beams are described. The obtained re- suits will be helpful for optimal design and operation of antenna.
出处
《无线电工程》
2012年第8期41-42,45,共3页
Radio Engineering
