一种紧凑型电磁带隙结构双陷波超宽带天线设计  

A Compact Dual Band⁃Notched UWB Antenna Design Based on Electromagnetic⁃Bandgap Structure

作　　者：时晶晶 姚佰栋[3] 吴先良[4] 宋扬[1] 涂健民 SHI Jingjing;YAO Baidong;WU Xianliang;SONG Yang;TU Jianmin(Anhui Province Key Laboratory of Target Recognition and Feature Extraction,Anhui Bowei Chang’an Electronic Co Ltd,Lu’an 237010,China;Anhui Province Key Laboratory of Simulation and Design for Electronic Information System,Hefei Normal University,Hefei 230601,China;The 38th Research Institute of China Electronics Technology Group Corporation,Hefei 230088,China;School of Electronic and Information Engineering,Anhui University,Hefei 230601,China)

机构地区：[1]安徽博微长安电子有限公司目标探测与特征提取安徽省重点实验室,安徽六安237010 [2]合肥师范学院电子信息系统仿真设计安徽省重点实验室,安徽合肥230601 [3]中国电子科技集团公司第三十八研究所,安徽合肥230088 [4]安徽大学电子信息工程学院,安徽合肥230601

出　　处：《雷达科学与技术》2023年第3期349-354,共6页Radar Science and Technology

基　　金：安徽省高校自然科学研究重点项目(No.KJ2021A0906);目标探测与特征提取安徽省重点实验室重点项目(No.TRFE2020A002);电子信息系统仿真设计安徽省重点实验室一般项目(No.2020ZDSYSYB06);安徽省科技重大专项(No.201903a05020047)。

摘　　要：基于单EBG结构设计一种带有双陷波功能的超宽带单极子天线。以杯型贴片构成天线辐射单元,馈线处引入半圆开口谐振环-电磁带隙(Semicircular Split Ring Resonator Electromagnetic Bandgap,SCSR-EBG)结构,通过将半圆环型EBG结构开口,构成谐振回路,从而在EBG陷波频率的基础上产生第二陷波频率。与传统EBG结构相比,该结构紧凑,陷波性能明显,单个SCSR-EBG单元(0.13λc1*0.065λc1)可以有效消除WiMAX和WLAN两个频段干扰。仿真和测试结果表明,天线在陷波频段处驻波比(Voltage Standing Wave Ratio,VSWR)>10,通带内具有稳定的辐射特性,可应用于超宽带通信系统。An ultra⁃wide band(UWB)monopole antenna based on single EBG structure is designed to realize du⁃al band⁃notched function.The proposed antenna uses the cup⁃shaped structure as the radiation patch and introduces a semicircular split ring resonator bandgap(SCSR⁃EBG)structure into the feeder line.By opening the semicircular EBG structure,a resonant loop is formed,and a second notched frequency is generated based on the notched frequency of EBG.Compared with the traditional EBG structure,the proposed EBG has compact structure and obvious band notch performance.In addition,one SCSR⁃EBG cell(0.13λc1*0.065λc1)can suppress the interferences of WiMAX and WLAN signals.The simulated and measured results show that the VSWRs of proposed antenna are more than 10 in the notched frequencies.At the same time,it has stable radiation characteristics in the operating frequency,which can be used in compact ultra⁃wideband communication systems.

关 键 词：双陷波 超宽带天线 电磁带隙结构 开口谐振环 

分 类 号：TN822.8[电子电信—信息与通信工程]