Ka宽频带卫星通信馈源系统  

Ka Wide Band Satellite Communication Feed System

作　　者：袁朝晖[1] 杜彪[1] 金超[1] 

机构地区：[1]中国电子科技集团公司第54研究所,河北石家庄050081

出　　处：《现代电子技术》2008年第15期163-165,共3页Modern Electronics Technique

摘　　要：作为下一代Ka频段卫星通信系统的关键天馈设备，新研制玎一种高性能Ka宽频带卫星通信地球站四端口圆极化馈源系统，文章介绍了该馈源系统的方案特点及关键部件的选取原则，并给出实测结果。测试结果袁明馈源系统在19．2～21．2GHz的接收频带、29．0～31．0GHz的发射频带内具有优良的性能，轴比小于0．5dB、回波损失小于－21dB，整体技术指标达到了国际先进水平。A high performance Ka wide band four ports circularly polarized feed system is designed for Ka band satellite communication earth stations. This paper shows scheme and how to select the key parts of this feed system,and gives test resuit. In the 19. 2 - 21. 2GHz receive band and the 29.0 - 31.0 GHz transmit band, the feed system shows much better performance,the axial ratio is less than 0.5 dB, and the return loss is better than --30 dB, as the final test results already reached the international advanced level.

关 键 词：KA频段 圆极化 轴比 同轴滤波器 隔板移相器 

分 类 号：TN927.21[电子电信—通信与信息系统]