›› 2013, Vol. 26 ›› Issue (1): 71-.

• 论文 • 上一篇    下一篇

一种具有三陷波特性的超宽带印刷天线设计

袁耿,林嘉扬,李铂   

  1. (1.西安电子科技大学 天线与微波技术重点实验室,陕西 西安 710071;2.中国人民解放军92146部队 修理所,广东 湛江 524001)
  • 出版日期:2013-01-15 发布日期:2013-03-08
  • 作者简介:袁耿(1979—),男,硕士研究生。研究方向:天线设计,宽频带技术。E-mail:yuangeng11@163.com

Design of a UWB Printed Antenna with Triple-Band Notched Characteristic

YUAN Geng,LIN Jiayang,LI Bo   

  1. (1.National Key Laboratory of Antennas and Microwave Technology,Xidian University,Xi'an 710071,China;2.Repair Institution,Unit 92146 of the Chinese People's Liberation Army,Zhanjiang 524001,China)
  • Online:2013-01-15 Published:2013-03-08

摘要:

提出了一种新型的具有三陷波特性的超宽带印刷天线。大钱形的辐射贴片和共面波导传输线馈电,可以保证在相当宽的3个频带内具有良好的阻抗匹配。回波损耗S11<-10 dB的阻抗带宽是3.1~10.6 GHz,除了其中3.3~3.7 GHz 的WiMAX,5.15~5.825 GHz的WLAN和7.25~8.4 GHz的X波段下行频段3个陷波频段。这些陷波的频段可以通过在天线的辐射贴片上增加长条裂缝和U形缝隙实现。加工和测试结果表明,该天线具有很好的阻抗带宽和全向辐射方向图。

关键词: 超宽带天线, 陷波特性, 小型化, 无线通信

Abstract:

A novel printed ultra-wideband (UWB) antenna for triple-band notched characteristic is proposed.Good impedance matching in a wide triple-band can be achieved by a copper coins shaped radiating patch and a coplanar waveguide (CPW) transmission line.It yields impedance bandwidth of 3.1~10.6 GHz with return loss S11<-10 dB,except for the three subbands of 3.3~3.7 GHz for WiMAX,5.15~5.825 GHz for WLAN and 7.25~8.4 GHz for downlink of X-band.These notched subbands are obtained by etching slits and U-shaped slots on the radiating patch.The antenna was successfully fabricated and measured,showing broadband matched impedance and nearly omnidirectional radiation pattern.

Key words: Ultra-wideband antenna;band-notched;compact planar antenna;wireless communications

中图分类号: 

  • TN822+.8