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机构地区:[1]中国空间技术研究院西安分院,西安710100
出 处:《中国空间科学技术》2017年第4期49-55,共7页Chinese Space Science and Technology
摘 要:每束多馈源是一种能够在多色复用情况下有效减少反射面使用数量的多波束天线配置方案,鉴于国内外对这一方案的研究尚处于初级阶段,对这类配置天线的设计特点研究需求更为迫切。文章对这类天线相对于每束单馈源天线存在的一些设计差异和设计要求开展了研究。重点提出了相邻同色波束最大干扰的概念,并首次将馈电网络结构与波束优化相结合,在理论上确保了网络的可实现性。最后,结合这类天线的特点,对进一步改善波束性能给出了两点设计构想,并分析了构想的可行性。As a configuration the multiple feeds per beam can effectively reduce the number ofapertures in multiple-color reuse condition.Because this configuration is researched in the primary stage at home and abroad,the traits of antenna using this kind of configuration need to be researched urgently.The design requirements and differences of this kind of antenna relative to the single feed per beam antenna were researched.The notion of the max interference of neighbor cocolor beams was presented as a key point.And in order to ensure the realizability of feed networks in theory,a design combining the feed networks with the beam optimization was presented for the first time.Finally,two points of ideas for further improvement of beams′properties were given,along with analysis of the feasibility of them.
关 键 词:波束形成网络 波束优化 通信卫星 多波束天线 每束多馈源
分 类 号:V443.4[航空宇航科学与技术—飞行器设计]
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