测试技术学报2025，Vol.39Issue(4)：483-490,8.DOI:10.62756/csjs.1671-7449.2025048
一种基于频率选择表面的高增益超宽带单陷波天线
A High-Gain Ultra-Wideband Single-Notch Antenna Based on Frequency Selective Surfaces
摘要
Abstract
To enhance the gain of an ultra-wideband notch antenna with WLAN inhibition characteristics,a single-layer frequency-selective surface(FSS)was designed using FR4 as the dielectric substrate.The FSS was composed of a 5×5 array of printed circular periodic metal units on the substrate and each unit contained two circular rings of different radii.The overall size was 75 mm×75 mm.By optimizing the structure and dimensions of the circular rings,the desired transmission properties were achieved.When integrating with the antenna,the gain was improved without affecting the notch performance.Simulation results show that the antenna operates in the frequency band of 2.5 GHz to 11 GHz,with a notched band from 5.08 GHz to 6.1 GHz.After integrating FSS,The measured S11 curve matches well with the simulation results,indicating that the notch performance remains unaffected.The average gain in the main operating band increases by 3.96 dBi,showing good directional radiation and suggesting the effec-tiveness of the designed FSS.关键词
超宽带天线/WLAN陷波/频率选择表面/增益提升Key words
ultra-wideband/WLAN band-notch/frequency selective surfaces/gain enhancement分类
信息技术与安全科学引用本文复制引用
武广乾,牛旭印,王少锋..一种基于频率选择表面的高增益超宽带单陷波天线[J].测试技术学报,2025,39(4):483-490,8.基金项目
山西省基础研究计划资助项目(202303021212002) （202303021212002）
