摘要
基片集成波导缝隙天线具有传统波导缝隙天线的优良特性,同时又具有结构紧凑、易于加工和集成等优点。本文论证基片集成波导缝隙阵天线用作对地观测卫星数传天线的可能性,提出二维机械扫描和方位机械扫描附加俯仰电扫描两种方案,并列举了一个X频段右旋圆极化基片集成波导驻波阵的设计实例,仿真结果显示辐射波导单元增益达到12.9dBi,交叉极化达到-24 dB,相对带宽达到8%,阵列增益预算达到25 dBi,满足卫星应用要求。
Substrate integrated waveguide( SIW) slot array antenna and the conventional waveguide slot array antenna have good characteristics in common,but at the same time,SIW antenna slot array takes the advantages of compact structure,easy fabrication and integration. This paper discusses the possibility of using SIW slot array antenna as data transmission antenna which is loaded on the earth observation satellites. Two schemes including 2-dimensional mechanical sweeping and mechanical sweeping in azimuth and electrical sweeping in elevation are proposed. A design example of X-band right circular-polarization SIW standing wave array is also demonstrated,and the emulated results show that radiate waveguide element has 12. 9dBi gain,-24 dB cross-polarization and 8% relative bandwidth,25 dBi budget array gain are achieved,with satisfaction of satellite demands.
出处
《测绘通报》
CSCD
北大核心
2014年第S1期60-64,共5页
Bulletin of Surveying and Mapping
关键词
基片集成波导缝隙阵天线
数传天线
X频段
圆极化
substrate integrated waveguide(SIW) slot array antenna
data transmission antenna
X-band
circular polarization
