基于左手材料的超宽带平面天线的设计  

Design of Ultra Wide Band Planar Antenna Based on Left Handed Material

作　　者：李顺利[1] 曾文波[1] 陈应辉[1] 

机构地区：[1]广西科技大学电气与信息工程学院,广西柳州545006

出　　处：《压电与声光》2017年第4期638-642,共5页Piezoelectrics & Acoustooptics

基　　金：广西自然科学基金资助项目(2015GXNSFAA139289);广西科技大学研究生创新基金资助项目(GKYC201621)

摘　　要：设计了一种十字交叉耦合型结构的左手材料,左手材料构成的超宽带陷波滤波器通带范围为3.16~11.84GHz,陷波范围为7.01~8.56GHz。针对现有平面天线设计难、体积大和滤波性能低等问题,将左手材料的滤波器加载于两款结构简单、易于加工的平面天线上,构成基于左手材料的超宽带滤波天线。相比于现有平面天线,该滤波天线同时具有辐射和滤波功能。经HFSS软件仿真和计算得出该滤波天线工作在超宽带范围内,X波段陷波处回波损耗可达-1.30dB,实现了超宽带天线集成化、小型化的设计。A kind of left-handed material（LHM）with the cross-coupled structure is designed in this work.A new type of ultra wide band（UWB）notch filter constructed by the proposed LHM has a pass-band of 3.16-11.84 GHz and a stop-band of 7.01-8.56 GHz.Aiming at the problems of difficult design,large size and low filtering performance existing in the planar antenna,an UWB filtering antenna based on LHM has been realized through loading the LHM filter onto two simple-structure and easy-to-fabrication planar antennas.Comparing with the conventional planar antenna,the proposed filter antenna has both radiation and filtering functions.The HFSS software simulation and calculation show that the filter antenna operates in the ultra wide band,the return loss at X band notch is up to-1.30 dB,which can realize the integration and miniaturization design of UWB antenna.

关 键 词：左手材料 陷波滤波器 平面天线 超宽带 滤波天线 

分 类 号：TN82[电子电信—信息与通信工程]