一种五陷波超宽带天线的设计  

Design of a Quintuple Band-notched UWB Antenna

作　　者：廖银霜 王代强 LIAO Yinshuang;WANG Daiqiang(College of Big Data and Information Engineering,Guizhou University,Guiyang 550025,China;College of Mechanical and Electronics Engineering,Guizhou Minzu Universit,Guiyang 550025,China)

机构地区：[1]贵州大学大数据与信息工程学院,贵阳550025 [2]贵州民族大学机械电子工程学院,贵阳550025

出　　处：《电讯技术》2021年第5期640-645,共6页Telecommunication Engineering

基　　金：贵州省教育厅重大研究项目(黔教合KY字〔2017〕035);贵州省科技计划项目(黔科合成果〔2020〕2Y027、黔科中引地〔2020〕4009);贵州民族大学基金项目(GZMU〔2019〕YB21)。

摘　　要：为了在所需的多个陷波频带中获得额外的谐振频率,设计了一种具有五陷波特性的超宽带单极子天线,天线包括蚀刻了两个不封闭口字型槽的秤砣形贴片、矩形微带馈电线、缺陷接地板和两个类U形谐振器。将两个类U形谐振器耦合在馈电线附近,与辐射贴片上蚀刻的两个槽及缺陷接地板共同实现五陷波特性。该天线工作带宽为3.01~12 GHz,有效滤除了WiMAX通信频段(3.73~3.89 GHz)、C频段卫星通信系统(4.25~4.9 GHz)、无线局域网通信频段(5.51~5.83 GHz)、INSAT(Indian National Satellite System)频段(6.77~7.32 GHz)和ITU 8GHz频段(8.13~8.38 GHz)的干扰,且天线在通带频段内五个陷波特性和方向性结果均吻合良好。In order to obtain additional resonance frequencies in the required multiple notch band,an ultra-wideband(UWB)monopole antenna with five-notched characteristics is designed.The antenna includes a weight-shaped patch etched with two unsealed oral characters shape slots,a rectangular microstrip feed line,a defective ground plate and two U-shaped resonators.The five-notch characteristics are realized by making two U-shaped resonators besides the feedline and etching the two slots on the radiation patch and together with the defective ground plate.The antenna has a working bandwidth of 3.01~12 GHz,the interferences of WiMAX(3.73~3.89 GHz),C-band satellite communication system(4.25~4.9 GHz),wireless local area network(WLAN)communication band(5.51~5.83 GHz),Indian National Satellite System(NSAT)band(6.77~7.32 GHz)and ITU 8 GHz band(8.13~8.38 GHz)are effectively filtered out,and the results of antenna′s five notch characteristics and directivity in working bandwidth are in good agreement.

关 键 词：超宽带天线 五陷波 缺陷接地板 U形谐振器 

分 类 号：TN823[电子电信—信息与通信工程]