VHF/UHF频段宽带偶极子阵列天线研制  

Study and Fabrication of A VHF/UHF-Band Wideband Dipole Array Antenna

作　　者：樊薇曦 Fan Weixi(No.39 Research Institute of CETC,Xi'an 710065 China)

机构地区：[1]中国电子科技集团公司第39研究所,西安710065

出　　处：《测控与通信》2021年第4期12-20,共9页

摘　　要：研制了1种口径约为4h的宽频带低副瓣低交叉极化的VHF/UHF波段阵列天线,该天线由7个阵元组成。通过优化设计布阵方式、阵间距选择、宽带偶极子天线单元等,使阵列天线在宽频带获得低副瓣特性,相对工作带宽达到107%。实测结果表明,阵列天线在频带内电压驻波比小于2.2,副瓣电平低于-14 dB,交叉极化低于-30 dB,该天线具有很好的应用前景。A wideband VHF/UHF antenna array with low-sidelobe and low cross-polarization,which composed with 7 elements,is developed in this paper.The antenna array has a diameter of 4λ.By optimizing the configurations of the wideband dipole radiator,the antenna array mode and the spacing between the elements,the low-sidelobe character is achieved in 107%bandwidth.The measured results indicate that the VSWR of this antenna array is less than 2.2,the sidelobe level less than-14 dB and the cross polarization level is less than-30 dB.It is of great value in some special communication systems.

关 键 词：宽频带低副瓣 低交叉极化 七元阵 偶极子天线单元 

分 类 号：TN8[电子电信—信息与通信工程]