C波段低副瓣定向微带阵列天线的设计  

Design of Low Sidelobe Directional Microstrip Array Antenna in C-band

作　　者：左建康 耿彦峰[1] ZUO Jiankang;GENG Yanfeng(College of Physics and Electronic Engineering,Shanxi University,Taiyuan 030006,China)

机构地区：[1]山西大学物理电子工程学院,山西太原030006

出　　处：《山西大学学报（自然科学版）》2022年第4期1036-1043,共8页Journal of Shanxi University(Natural Science Edition)

摘　　要：文章提出了一种工作在C波段基于切比雪夫分布的不等分馈电网络所设计的8×4定向辐射阵列天线,主要根据切比雪夫加权函数针对线阵所对应的馈电网络实施了同相不等分的电流分配,形成了一分八的功分器作为馈电网络结构,同时采用串并联混合馈电网络,降低了传输损耗,减小了占用空间。测试数据表明,在4.84 GHz处,阵列天线的增益大小是15.56 d Bi,对应的E面和H面的副瓣电平大小分别是-24.12 dB和-24.97 dB。实现了微带阵列天线高增益、低副瓣和指向性好的要求。This paper proposes an 8×4 directional radiation array antenna for C band based on Chebyshev distribution of unequal feed network.According to Chebyshev weighting function,the in-phase unequal current distribution is implemented for the feed network corresponding to the linear array,and a one point eight power divider is formed as the feed network structure.Morover,a series-parallel hybrid feed network is adopted,which reduces transmission loss and occupies less space.The test results show that at4.84 GHz,the gain of the array antenna is 15.56 dBi,and the corresponding sidelobe levels of E plane and H plane are-24.12dB and-24.97 dB,respectively.The requirements of high gain,low sidelobe and good directivity of microstrip array antenna are realized.

关 键 词：切比雪夫 阵列天线 低副瓣 馈电网络 

分 类 号：TN82[电子电信—信息与通信工程]