用于多波段的多模式频率可重构天线  

Multi-mode frequency reconfigurable antenna for multi-band application

作　　者：张彦鹏 孙学宏 刘丽萍[1,3] 袁一杰 王艳妮[1] 赵灵芝 ZHANG Yanpeng;SUN Xuehong;LIU Liping;YUAN Yijie;WANG Yanni;ZHAO Lingzhi(School of Physics and Electronic-Electrical Engineering,Ningxia University,Yinchuan 750021,China;School of Information Engineering,Ningxia University,Yinchuan 750021,China;Ningxia Key Laboratory of Intelligent Sensing of Desert Information,Ningxia University,Yinchuan 750021,China)

机构地区：[1]宁夏大学物理与电子电气工程学院,宁夏银川750021 [2]宁夏大学信息工程学院,宁夏银川750021 [3]宁夏大学宁夏沙漠信息智能感知重点实验室,宁夏银川750021

出　　处：《传感器与微系统》2024年第3期92-95,98,共5页Transducer and Microsystem Technologies

摘　　要：为了应对频率可重构模式单一,尺寸偏大,工作频段较窄等问题,基于传统的微带缝隙天线,通过对其进行结构的改造,设计并实现了一种应用于C,S,X,Ku波段的多模式频率可重构微带缝隙天线。天线为叉型结构,分别在3个叉形枝节和微带线之间嵌入PIN二极管,通过控制二极管的导通状态,使天线具有4种不同的模式,分别对应于单频带、双频段、三频段和四频段。此天线尺寸为20mm×22mm,较传统缝隙天线体积减少了20%以上,实现了小型化。天线在工作频点处的最大增益可达5dBi,具有良好的辐射特性。In order to cope with the problems of single frequency reconfigurable mode,large size and narrow operating band,a multi-mode frequency reconfigurable microstrip slit antenna for C,S,X and Ku bands is designed and implemented based on the traditional microstrip slit antenna,by modifying its structure.The antenna is a forked structure with PIN diodes embedded between three forked branches and the microstrip lines,respectively.By controlling the on-state of the diodes which makes the antenna have four different modes,corresponding to single-band,dual-band,tri-band and quad-band,respectively.The size of this antenna is 20 mm×22 mm,which is reduced by more than 20%than conventional slit antennas,resulting in miniaturization.The antenna has a maximum gain of 5 dBi at the operating frequency point and has good radiation characteristics.

关 键 词：微带缝隙天线 可重构 多模式 PIN二极管 紧凑型天线 

分 类 号：TN821[电子电信—信息与通信工程]