基于方环互联型频选表面单元的双频共口径天线
Dual-band Co-aperture Antenna Based on Square-loop Interconnected Frequency-selective surface element
苏国生 1陈强 1王强1
作者信息
- 1. 京信通信技术(广州)有限公司,广东 广州 510663
- 折叠
摘要
移动通信基站天线的小型化一直以来都是研究的热点,随着频段的增加,多频共口径天线不同频段的单元间距越来越小,相互间的影响也越来越大.针对低频(1710～2170MHz)天线的散射导致的高频方向图畸变问题,提出了方环互联频率选择表面及低频透波单元的设计方法,并应用于双频共口径天线中.高频(3400～3800MHz)天线增加提出的低频透波单元后方向图基本吻合,平均增益仅下降0.19dB,同时平均波束指向由5.9°变成1.7°,利用该规律可以优化高频方向图的波束偏斜.设计的双频共口径天线适用于4G/5G移动通信,为多频天线方向图畸变及波束偏斜等问题提供了解决思路.
Abstract
The miniaturization of mobile communication base station antennas has always been a research hotspot.With the increase of frequency bands,the element spacing of different frequen-cy bands of multi-band co-aperture antennas is becoming smaller and smaller,and the influence between them is also increasing.In order to solve the problem of high band radiation pattern dis-tortion caused by the scattering of low band(1710～2170MHz)antennas,the design methods of square loop interconnected frequency selective surfaces and low band electromagnetic transparent element are proposed and applied to dual-band co-aperture antennas.The pattern of the high band(3400～3800MHz)antenna with the proposed low band electromagnetic transparent ele-ment is consistent,the average gain only decreases by 0.19dB,and the average beam direction changes from 5.9° to 1.7°,which can be used to optimize the beam squint of the high band ra-diation pattern.The designed dual-band co-aperture antenna is suitable for 4G/5G mobile com-munication,which provides a solution to the problems such as pattern distortion and beam squint of multi-band antenna.
关键词
基站天线/双频共口径天线/频率选择表面/透波天线Key words
base station antenna/dual-band co-aperture antenna/frequency selective surface/elec-tromagnetic-transparent antenna引用本文复制引用
出版年
2024
NETL
NSTL
万方数据