电波科学学报2024，Vol.39Issue(6)：1035-1042,8.DOI:10.12265/j.cjors.2024003
基于相位差频变馈电网络的宽带天线阵列
Broadband antenna array based on phase-difference frequency-dependent feeding network
摘要
Abstract
In order to realize two fixed beam directions in an antenna array with a relatively wide operating bandwidth,this paper proposes a method for designing a feeding network in which the phase difference is frequency-dependent.The ratio of the phase difference to the operating frequency of the proposed feeding network is designed to be constant across the frequency range,which means that a phase difference of φ at f0 and 2φ at 2f0 is realized.The transmission line structure of the feeding network is a stripline.The radiation unit in the antenna array is Vivaldi antenna.The feeding network is designed and fabricated,and the measured results are in general agreement with the simulated results.The antenna array fed by this feeding network achieves two fixed-direction beams in the frequency range of 2-4 GHz,which is in good agreement with the theoretical analysis.The designed broadband antenna array system has the function of maintaining a stable beam direction over a wide bandwidth range,providing a potential solution for dual-area coverage.关键词
馈电网络/波束赋型/宽带天线阵列/波束稳定/频变Key words
feeding network/beamforming/broadband antenna array/stable beam/frequency-dependent分类
信息技术与安全科学引用本文复制引用
向凯燃,陈付昌..基于相位差频变馈电网络的宽带天线阵列[J].电波科学学报,2024,39(6):1035-1042,8.基金项目
中国博士后科学基金(2023M741206) （2023M741206）
国家资助博士后研究人员计划(GZB20230226) （GZB20230226）
