| 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。 |
| 关键词: 超宽带天线 五陷波 缺陷接地板 U形谐振器 |
| DOI： |
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| 基金项目: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） |
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| Design of a quintuple band-notched UWB antenna |
| 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) |
| Abstract: |
| 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. |
| Key words: ultra-wideband antenna five notches defective ground plate U-shaped resonators |
