摘要
本文提出了一种基于异形结构的Ku波段低剖面单脉冲波导阵列天线。该阵列天线由开口波导辐射槽层、一分四耦合腔层以及不等分馈电网络层组成。采用空气波导结构和全并馈网络以实现宽带和高增益性能。阵列天线共有四组子阵列,对应四个输入口,从而实现了方位面和俯仰面的和差波束生成。此外,该设计还具有异形口径的阵列拓扑结构和9 mm的低剖面优势,可以满足实际工程的需求。由HFSS仿真结果表明,所设计的天线阵列回波损耗低于-10 dB的带宽范围为15.3 GHz-22 GHz,此带宽内天线的最大增益为26.8 dBi,口径效率最高可达到85%,具有较好的天线性能。
This paper proposes a low profile monopulse array antenna with an irregular structure applied in the Ku band.The array antenna consists of a metal open waveguide,a quarter coupled cavity,and a single ridge waveguide unequal power division network.Design a fully parallel fed broadband,high gain radiation structure based on an open waveguide;The array antenna has four sets of small arrays and four input ports,which achieve the generation of sum and difference beams in the azimuth and elevation planes.To support practical engineering needs,the design is an array topology structure with irregular apertures.To meet installation requirements,the profile height is only 9 mm.The HFSS simulation results show that the coverage bandwidth of the antenna array with return loss less than-10 dB is 15.3 GHz-22 GHz,the maximum gain of the antenna within this bandwidth is 26.8 dBi,and the aperture efficiency can reach 85%.
作者
金天翔
JIN Tianxiang(College of Information Science and Engineering,Ningbo University,Ningbo 315211,China)
出处
《无线通信技术》
2024年第1期16-20,共5页
Wireless Communication Technology
基金
国家重点研发计划(2018YFB1802100)
国家自然科学基金(61801252,U1809203,61631012,61774098)
广东省重点领域研发计划(2019B010156004)
浙江省省属高校基本科研业务费专项资金(SJLY2020001)。
关键词
低剖面
开口波导
宽频带
高增益
和差波束
Low profile
Open waveguide
Broadband
High gain
Sum difference beam
