Ku波段高增益波导缝隙阵列天线  

Ku-band high-gain waveguide slot array antenna

作　　者：白洁莹 栗曦[1] 李一楠[2] BAI Jieying;LI Xi;LI Yinan(State Key Laboratory of Antenna and Microwave,Xidian University,Xi’an 710000,China;China Academy of Space Technology(Xi’an),Xi’an 710000,China)

机构地区：[1]西安电子科技大学天线与微波国家重点实验室,西安710000 [2]中国空间技术研究院西安分院,西安710000

出　　处：《空间电子技术》2024年第2期60-65,共6页Space Electronic Technology

基　　金：国家民用航天十四五预先研究项目(编号:D040202)。

摘　　要：文章设计了在Ku频段窄边开缝的行波阵波导缝隙天线。首先设计了单根的开槽缝隙天线,其增益可达23.69dB以上,在方位面波束宽度为1.4°,副瓣电平均低于-15dB。64根开槽缝隙天线组阵后能够在4%的带宽内实现增益大于41.88dB,波束宽度在1.4°左右,副瓣电平均低于-13dB。仿真与测试结果均可以表明,该天线能够在Ku波段实现高增益和低副瓣、指向性好,并具有低剖面的优点。In this paper,a traveling waveguide slot antenna with a narrow side slit in the Ku-band is designed.First of all,a single waveguide slot antenna is designed,with a gain of more than 23.69dB,a beam width of 1.4°in the azimuth plane and an average of sidelobe less than-15dB.After 64 identical antennas are used for the array,the gain is greater than 41.88dB,the beam width is about 1.4°,and the sidelobe average is less than-13dB within 4%of the bandwidth.The simulation and test results show that the antenna can achieve high gain and low sidelobe in Ku-band,and the antenna design also has the advantage of good directivity and low profile.

关 键 词：波导缝隙 阵列天线 低副瓣 相控阵天线 

分 类 号：TN253[电子电信—物理电子学] V443[航空宇航科学与技术—飞行器设计]