一种低副瓣的卫星导航信号上行天线  

A Receive Antenna of Low Side-lobe For the Navigation Satellite

作　　者：杨文丽[1] 敬红勇[1] 吴春邦[1] 刘波[1] 

机构地区：[1]中国空间技术研究院西安分院,西安710000

出　　处：《空间电子技术》2015年第6期84-86,共3页Space Electronic Technology

摘　　要：导航卫星上行天线用来接收来自地面的上行注入信号,下行天线用来播发导航信号,由于下行的三阶交调产品进入到上行频段中,需要对上行天线进行低旁瓣设计,上行波束性能好坏影响有效载荷乃至整星功能实现。同时星上布局空间资源十分宝贵,需要利用较小的口径实现天线低旁瓣的设计。文章介绍了一种采用微带贴片激励的喇叭天线,该天线在导航卫星上应用,缩小了空间尺寸,并且实现了低副瓣性能,降低了导航下行信号对上行信号的干扰,为确保有效载荷的良好性能打下了坚实基础。The signal submitted from the earth station is received by the receive antenna of the navigation satellite. And the navigation signal from the navigation antenna transmits to the earth. The passive intermodulation of order three is produced by the navigation antenna and the frequency is on the band of the receive antenna. The side-lobe of the receive antenna should be suppressed. And the performance of that is important for the Navigation System which can be estimated as success or in reverse. The capacity outside of the satellite is limited, as so the receive antenna should be designed as small as possible. This paper describes an antenna which comprises a micro-strip stored in a horn. This antenna is application on the navigation satellite. The dimension of it is small. And the side-lobe of it is low, which contributes to the well performance of the Navigation payload.

关 键 词：微带贴片激励 喇叭天线 导航卫星 低副瓣 

分 类 号：TN967.1[电子电信—信号与信息处理]