陷波可重构的超宽带单极天线设计  

Design of UWB Monopole Antenna with Reconfigurable Band-Notch Characteristics

作　　者：王彩霞[1] 栗靖宙 闫丽云[1] 李莉[1] 韩国瑞[1] 韩丽萍[1] 

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》2015年第3期208-212,共5页Journal of Test and Measurement Technology

基　　金：国家自然科学基金资助项目(61172045);国家基础科学人才培养基金资助项目(J1210036);山西省自然科学基金资助项目(2012011013-3)

摘　　要：本文提出了一个陷波可重构的超宽带单极天线.为了实现超宽带,辐射单元采用阶梯式结构.在辐射单元刻蚀一个开口缝隙,并在缝隙的适当位置放置三个开关,通过控制开关的不同组合状态实现陷波可重构.天线的尺寸为30mm×22mm(0.42λg×0.31λg,λg为低频导波波长).仿真和测量结果表明:天线可以工作在超宽带以及3个陷波可重构频段,超宽带工作频带为3.1GHz^10.7GHz,陷波频段涵盖3.4GHz^3.69GHz,3.7GHz^4.2GHz和5.2GHz^5.875GHz.A UWB monopole antenna with reconfigurable band-notch characteristicsis presented in this paper.A stepped rectangle radiating patch is used to achieve ultrawideband operation.A slit is etched on the patch,and three switches are positioned in the slit.The reconfigurable band-notch capability of the antenna is achieved by changing the states of switches.The overall size of the antenna is 30 mm× 22 mm.The simulated and measured results show that the proposed antenna can operate at the UWB band and three reconfigurable notch bands.It covers the entire UWB band from 3.1 GHz to 10.6 GHz, with three reconfigurable notched bands 3.4 GHz～3.69 GHz,3.7 GHz～4.2 GHz,and 5.2 GHz～5.875 GHz.

关 键 词：陷波 可重构 超宽带 单极天线 

分 类 号：TN821.3[电子电信—信息与通信工程]