应用于认知无线电的频率可重构天线  

Frequency-Reconfigurable Antenna for Cognitive Radio Applications

作　　者：平艺伟 韩杨露 陈新伟[1] 韩丽萍[1] PING Yiwei;HAN Yanglu;CHEN Xinwei;HAN Liping(College of Physics and Electronics Engineering, Shanxi University, Taiyuan 030006, Chin)

机构地区：[1]山西大学物理电子工程学院,山西太原030006

出　　处：《测试技术学报》2018年第2期139-143,共5页Journal of Test and Measurement Technology

基　　金：国家自然科学基金资助项目(61172045);山西省"1331工程"重点学科建设计划经费资助项目

摘　　要：本文提出一种应用于认知无线电的频率可重构单极子天线.阶梯型辐射单元刻蚀有一个开路缝隙,接地板刻蚀有一个短路方环形缝隙.在开路缝隙和短路缝隙上加载6个开关元件,通过控制开关的不同组合状态可以实现超宽带、单频带、双频带3种模式,从而实现频率可重构.仿真和测量结果表明天线可以工作在UWB以及WiMAX频段.This paper presents a frequency reconfigurable monopole antenna for cognitive radio applications.An open slit is cut in the stepped rectangular patch,and a short circuit square ring gap is etched in the ground plane.In order to realize the frequency reconfiguration,six switching elements are loaded in the slit and ring.By changing the states of switches,three modes（ultra-wideband,single-band,dualband）can be achieved.The results of simulation and measurement show that the antenna can work in the UWB and WiMAX band.

关 键 词：认知无线电 频率可重构单极子天线 无线通信 

分 类 号：TN821.3[电子电信—信息与通信工程]