一种串联馈电式Vivaldi阵列天线  

A Series-fed Vivaldi Antenna Array

作　　者：辛永豪 包晓军 李琳 刘远曦 XIN Yong-hao;BAO Xiao-jun;LI Lin;LIU Yuan-xi(Guangdong Naruida Technology Co.Ltd.,Zhuhai 519000,China)

机构地区：[1]广东纳睿雷达科技股份有限公司,珠海519000

出　　处：《无线通信技术》2022年第2期37-40,共4页Wireless Communication Technology

摘　　要：设计了一款串馈式Vivaldi阵列天线,天线由12个相同的Vivaldi构成辐射源,由串联馈电式功分馈电网络进行馈电,通过调整每个节点的功分比,使Vivaldi天线单元的馈电幅度呈泰勒加权分布,从而降低天线旁瓣。仿真结果表明,所设计天线阵列在中心频点处驻波比系数小于1.5,天线方向图3-dB波束宽度为7.35°,最大旁瓣小于-23.8 dB,交叉极化低于-41.5dB,天线增益为15.0 dBi。A series-fed vivaldi antenna array is design, 12 vivaldi antenna units serve as the radiator, they are fed by a series-fed power divider feeding network. By regulating the ratio of power divider of each node, the feeding magnitude of the antenna units have a Taylor distribution, then the sidelobe level is suppressed. The simulation results show that the proposed antenna array has a VSWR lower than 1.5 at the center frequency, the 3-dB beamwidth is 7.35°,the maximum sidelobe level is lower than-23.8 dB, the cross polarized radiation is lower than-41.5 dB, the gain is 15.0 dBi.

关 键 词：VIVALDI天线 阵列天线 串联馈电 低旁瓣 泰勒加权 

分 类 号：TN823[电子电信—信息与通信工程]