无线电通信技术2024，Vol.50Issue(2)：386-391,6.DOI:10.3969/j.issn.1003-3114.2024.02.021
基于智能超表面的二维相扫天线
Two-dimensional Phase-scan Antenna Based on RIS
于瑞涛 1符道临 2熊伟 1陈珲3
作者信息
- 1. 杭州市钱塘区信息高等研究院,浙江杭州 310018
- 2. 江苏赛博空间科学技术有限公司,江苏南京 211113
- 3. 东南大学信息科学与工程学院,江苏南京 210096
- 折叠
摘要
Abstract
In order to solve the problems of complex design and high cost of traditional phased array antennas,a space-fed two-dimensional phase-scan antenna based on Reconfigurable Intelligent Surface(RIS)was proposed.The antenna uses RIS technology to manipulate the electromagnetic incoming waves from the feed,which realizes high gain and reconfigurability of the antenna beam.Compared with traditional phased array antennas,this antenna has the characteristics of simple structure,low cost and low profile.The antenna prototype consists of a metasurface array containing 1 024 cells,a driver module and a self-supporting feed,in which the metasurface array is controlled in real time through Field Programmable Gate Array(FPGA)to meet the requirement of rapid antenna beam switching and two-dimensional real-time reconstruction of the pattern.Two control states of the metasurface unit have amplitude loss of less than 0.5 dB from6.5 GHz to 10.0GHz,and the reflected phase difference is within180°±5° in the frequency band range from 7 GHz to 10 GHz.The antenna prototype tested gains are 24.72 dBi,24.92 dBi and 25.06 dBi respectively at 7.7 GHz,8.0 GHz,and 8.3 GHz.The antenna±60° scan loss is down to 4 dB.关键词
智能超表面/相控阵天线/二维扫描Key words
RIS/phased array antennas/2D scanning分类
电子信息工程引用本文复制引用
于瑞涛,符道临,熊伟,陈珲..基于智能超表面的二维相扫天线[J].无线电通信技术,2024,50(2):386-391,6.
