航天器工程2017，Vol.26Issue(6)：68-74,7.DOI:10.3969/j.issn.1673-8748.2017.06.011
高分三号卫星C频段多极化有源相控阵天线系统设计
Design of C-band Multi-polarized Active Phased Array Antenna System for GF-3 Satellite
摘要
Abstract
The antenna system of the synthetic aperture radar (SAR)imaging satellite (GF-3)is the first Chinese C-band multi-polarized phased array antenna which is operating on-orbit success-fully.The antenna features characteristics of co-aperture design,multi-polarization,flexibility of beam control,and can achieve twelve general working modes and several extensional modes.As a key equipment of the SAR system,the weight and peak power consumption of the whole system account for more than 46% and 60% of the satellite,respectively.Moreover,the performances of its emitting power,wideband bandwidth and radiation patterns play an important role on the ima-ging performance.The paper presents the design and main performances of the SAR antenna sys-tem for GF-3 satellite to demonstrate its features of C-band, multi-polarization, broad bandwidth,large power consumption,high-precision scanning,large aperture folding and low-weight,which will provide useful guidelines on the design of phased array antenna for Chinese space-borne SAR in the future.关键词
高分三号卫星/合成孔径雷达/有源相控阵天线/C频段/多极化Key words
GF-3 satellite/SAR/active phased array/C-band/multi-polarization分类
信息技术与安全科学引用本文复制引用
任波,赵良波,朱富国..高分三号卫星C频段多极化有源相控阵天线系统设计[J].航天器工程,2017,26(6):68-74,7.基金项目
国家重大科技专项工程 （）
