无线电工程2025，Vol.55Issue(3)：596-602,7.DOI:10.3969/j.issn.1003-3106.2025.03.017
小型化滤波天线设计
Miniaturized Filtering Antenna Design
摘要
Abstract
In order to improve the performance of a rectangular filter antenna,a rectangular patch with slots to improve the performance of the antenna is presented.This patch integrates the radiation performance of ordinary patch antennas while adding filtering characteristics.It has a zero point at each end of the gain curve and can be precisely controlled.On this basis,a new filter antenna design is created,which has a clear zero point at the edge of the band,thus improving the clarity of the band edge and providing good selectivity in terms of visual axis gain.The positions of these zero points can be adjusted by adjusting the length of the slot.Through simulation,the antenna achieves a matching bandwidth of 8.3%at the center frequency of 5.8 GHz.At the same time,there is a significant gain zero point at 5.4 GHz and 6.3 GHz,the gain reaches 5.86 dBi,the cross-polarization rejection exceeds 10.2 dB,and the front-to-back ratio is greater than 13.7 dB.关键词
辐射性能/滤波天线/视轴增益Key words
radiation property/filtering antenna/visual axis gain分类
电子信息工程引用本文复制引用
崔浩华,郭森琪,段朝伟..小型化滤波天线设计[J].无线电工程,2025,55(3):596-602,7.基金项目
河南省科技攻关项目(222102210066) （222102210066）
河南工学院高层次人才科研启动基金(KQ2422,XJ2023000602) （KQ2422,XJ2023000602）
河南工学院科研反哺教学专项课题(XJ2023004602)Science and Technology Assault Project in Henan Pro-vince(222102210066) （XJ2023004602）
High-level Talent Research Fund at Henan Insti-tute of Technology(KQ2422,XJ2023000602) （KQ2422,XJ2023000602）
Research and Develop-ment Project at Henan Institute of Technology to Benefit Teaching(XJ2023004602) （XJ2023004602）
