基于龙勃透镜的低副瓣高交叉极化阵列天线

打开文本图片集
摘要:为使阵列天线同时具有高增益、低副瓣和高交叉极化比的特性,文章通过在馈源上放置龙勃透镜来提高天线增益,对馈电网络进行幅度加窗和180°反相馈电设计,大幅降低了天线的副瓣,提高了天线的交叉极化比。
关键词:龙勃透镜;阵列天线;低副瓣;交叉极化比
doi:10.3969/J.ISSN.1672-7274.2022.04.009
中图分类号:TN 927.21 文献标示码:A 文章编码:1672-7274(2022)04-0026-02
Low Minor Lobe and High Cross-Polarization Array Antenna Based on Luneburg Lens
GUI Wanru, YANG Ruyi
(Hefei Rhosoon Intelligent Technology Co., Ltd., Hefei 230088, China)
Abstract: The array antenna should have high gain, low minor lobe and high cross-polarization ratio at the same time. In this paper, the antenna gain is improved by placing the Luneburg lens on the feed and the design of amplitude windowing and 180° inverting feed is carried out for the feed network, which greatly reduces the minor lobe and improves the cross-polarization ratio of the antenna.
Key words: Luneburg lens; array antenna; low minor lobe; cross-polarization ratio
1 研究背景
阵列天线是一类由不少于两个天线单元规则或随机排列并通过适当激励获得预定辐射特性的特殊天线,其所用的辐射源可以根据天线馈电电流、间距、电长度等不同参数,按照直线或者其他复杂形式来构成阵列以获取和调节最优的辐射方向特性,由此在现代移动通信、卫星通信、广播电视等领域得到了广泛应用[1]。(剩余1813字)