山西大学学报（自然科学版）2024，Vol.47Issue(5)：1048-1053,6.DOI:10.13451/j.sxu.ns.2023090
基于超表面的频率可重构缝隙天线设计
Design of Frequency Reconfigurable Antenna Based on Metasurface
摘要
Abstract
Frequency reconfigurable antennas are widely used to reduce the antenna number in communication platforms,and then eliminate the electromagnetic interference between different systems.A bias circuit needs to be introduced in frequency reconfigurab-la antennas using electronic switches,and thus the antenna performance will be affected.In this paper,a frequency reconfigurable slot antenna through mechanical tune is presented.The antenna is composed of a Metasurfae(MS)with a periodic arrangement of isosceles trapezoidal units and a slot antenna.A hexagonal groove etched in the ground plane of the slot antenna is used to broaden the impedance bandwidth.The equivalent relative permittivity can be changed by mechanically rotating the MS,and then the fre-quency reconfiguration is achieved.The simulated and measured results show that the operating bandwidth of the antenna can be switched in the band of 54.3%(2.32 GHz—4.05 GHz).A good radiation pattern is obtained in the operating band,and the peak gain is 5.5 dBi.关键词
频率可重构/超表面/超表面天线/缝隙天线Key words
frequency reconfigurable/metasurface/metasurface antenna/slot antenna分类
信息技术与安全科学引用本文复制引用
郭晓婷,吴箴言,史恒基,韩丽萍..基于超表面的频率可重构缝隙天线设计[J].山西大学学报（自然科学版）,2024,47(5):1048-1053,6.基金项目
国家自然科学基金(62071282) （62071282）
山西省自然科学基金(201901D111026) （201901D111026）
