一种前馈三频段组合馈源设计与实现  

The design and implement of a three-band combined feed

作　　者：董哲[1] 吴旭[1] DONG Zhe;WU Xu(The 54th Research Institute of CETC,Shijiazhuang Hebei 050081,China)

机构地区：[1]中国电子科技集团公司第五十四研究所,河北石家庄050081

出　　处：《河北省科学院学报》2022年第4期42-45,共4页Journal of The Hebei Academy of Sciences

摘　　要：设计了一种P、L、S三频段自跟踪组合馈源。天线结构采用腔振子形式,P频段选用旋转馈电形式进行设计,L、S频段采用宽带十字振子形式,S频段采用五阵元单脉冲自跟踪体制进行设计,各频段采用相互嵌套形式合理利用结构空间,同时通过仿真优化天线各频段之间的耦合得到很好的馈源辐射方向图,得到较好的照射电平和照射角度,提高馈源的照射效率。并加工了天线样机,通过测试P、L、S各频段天线均达到较好的效率。A combined self-tracking feed of P、L、S band is designed.The structure of feed is composed of dipoles with cavities.The rotated feeding style,boardband crossed-dipoles and five-dipoles self-tracking system are separately selected and used in P-band,L/S-band and S-band.Mutual nested structures are utilized to fulfill the limited space.Also,radiation patterns of three bands are simulated and optimized.And then excellent radiating levels and radiating angles are acquired,and the efficiency of the feed is enhanced.At last,an antenna prototype is fabricated,and by measuring the fine efficiency of P、L、S band is obtained.

关 键 词：组合馈源 单脉冲自跟踪 旋转馈电 前馈 

分 类 号：TN82[电子电信—信息与通信工程]