扫描波束缝隙阵列天线方案设想  

Research on Scanning Slotted Waveguide Array Antenna

作　　者：孙大媛[1] 庄建楼[1] 

机构地区：[1]北京空间飞行器总体设计部,北京100094

出　　处：《航天器工程》2008年第6期88-93,共6页Spacecraft Engineering

基　　金：国家重大科技专项工程

摘　　要：扫描波束缝隙阵列天线是一种相控阵天线,采用寄生振子实现波导缝隙天线的圆极化辐射,全金属结构可以承受恶劣的温度环境。每副天线可实现±45°一维扫描,两副天线组阵再辅以卫星自旋,可以实现全空间覆盖。此天线的优点是扫描范围宽、重量轻、结构紧凑和能在极端温度下工作。文章介绍了该天线的技术特点、方案设计和仿真分析结果。Scanning slotted waveguide array antenna is a kind of phased-array antennas. Its slotted waveguide array with parasitic elements produces circular polarization and its all-metal design is highly adaptable to the severe thermal environment. Each array scans ±45° in one dimension, and through a combination of scanning and spacecraft rotation, two arrays can provide a coverage over the entire sphere of the spacecraft. This antenna has advantages in broad scanning capability, low mass, tight packaging and adaptability to severe thermal temperature. This paper describes the characteristics, scheme design and simulation results of this antenna.

关 键 词：扫描波束 波导缝隙阵列天线 寄生振子 极端温度 技术特点 方案设计 

分 类 号：V443.4[航空宇航科学与技术—飞行器设计]