低插损多频段天线罩壁电性能  

Low Insertion Loss and Multiband Radome Walls

作　　者：张明习[1,2] 樊康[1] 何小祥[1] 

机构地区：[1]南京航空航天大学电子信息工程学院,南京210016 [2]高性能电磁窗航空科技重点实验室,济南250023

出　　处：《南京航空航天大学学报》2014年第6期851-855,共5页Journal of Nanjing University of Aeronautics & Astronautics

基　　金：航空科学基金(20121852031)资助项目

摘　　要：采用B夹层天线罩结构,利用四端口网络分析法,为一款工作在Ka波、K波和Ku波段内的“动中通”（动卫星通信系统）通讯系统设计了专用低插损、多频段天线罩壁.分析了不同极化,不同入射角下,天线罩壁的传输系数、反射系数和插入相移.结果表明：在0-40°的入射角范围内,Ka波段内的功率传输系数优于95.0％,K波和Ku波段内的功率传输系数优于88.8％,功率反射系数都小于6.3％,且垂直极化与水平极化之间的插入相位延迟的差异极小。A low insertion loss and multiband B-sandwich radome wall is designed specially for mobile satellite communication system which works at Ka-band,K-band and Ku-band,by using the four-port transmission formula of microwave network.Transmission coefficient,reflection coefficient and insertion phase delay are analyzed.When the angle of incidence is 0-40°,transmission coefficient is better than 95％ within Ka-band,better than 88.8％ within K-band and Ku-band,reflection coefficient is less than 6.3％ at all band,and the difference of insertion phase delay between vertical and horizontal polarization is very small.

关 键 词：天线罩壁 低插损 多频段 四端口网络 B夹层 

分 类 号：TN802.8[电子电信—信息与通信工程]