山西大学学报（自然科学版）2024，Vol.47Issue(5)：1062-1067,6.DOI:10.13451/j.sxu.ns.2023096
基于超表面的宽带滤波天线设计
Design of Wideband Filtering Antenna Based on Metasurface
摘要
Abstract
In this paper,a wideband filtering antenna is proposed based on metasurface.By dividing the 3×3 metasurface,a new reso-nance is introduced to improve the impedance matching bandwidth.In addition,by adding a step impedance resonator(SIR)to the feed line,a radiation zero is introduced on each of two sides of the working band.Moreover,a new resonance is introduced into the high frequency band of the passband,causing the bandwidth to be further widened.In addition,in order to improve the selectivity of the low frequency,a new radiation zero is introduced by etching four central symmetric U-shaped DGS on the ground.Simulated re-sults show that the designed filtering antenna has the fractional bandwidth of 33.1%(4.93 GHz—6.88 GHz)for S11<-10 dB,and has four radiation zeros at 4.06 GHz,4.4 GHz,7.5 GHz and 8.75 GHz,respectively.关键词
超表面/缺地陷结构/辐射零点/滤波天线Key words
metasurface/DGS/radiation zero/filtering antenna分类
信息技术与安全科学引用本文复制引用
王璐,陈新伟..基于超表面的宽带滤波天线设计[J].山西大学学报（自然科学版）,2024,47(5):1062-1067,6.基金项目
国家自然科学基金(62071282) （62071282）
山西省自然科学基金(202203021211295) （202203021211295）
山西省留学基金(2021-006) （2021-006）
