华南理工大学学报(自然科学版) ›› 2010, Vol. 38 ›› Issue (12): 56-60.doi: 10.3969/j.issn.1000-565X.2010.12.011

• 电子、通信与自动控制 • 上一篇    下一篇

可控陷波带宽缝隙超宽带天线

李春茂 张波   

  1. 华南理工大学 电力学院, 广东 广州 510640
  • 收稿日期:2010-03-24 修回日期:2010-06-22 出版日期:2010-12-25 发布日期:2010-12-25
  • 通信作者: 李春茂(1958-),男,副教授,主要从事LED技术研发与应用和电磁场理论与射频技术研究. E-mail:lcm0421@126.com
  • 作者简介:李春茂(1958-),男,副教授,主要从事LED技术研发与应用和电磁场理论与射频技术研究.
  • 基金资助:

    广东省绿色能源技术重点实验室资助项目(2008A060301002)

Ultra-Wideband Slot Antenna with Controllable Notched Bandwidth

Li Chun-mao  Zhang Bo   

  1. School of Electric Power,South China University of Technology,Guangzhou 510640,Guangdong,China
  • Received:2010-03-24 Revised:2010-06-22 Online:2010-12-25 Published:2010-12-25
  • Contact: 李春茂(1958-),男,副教授,主要从事LED技术研发与应用和电磁场理论与射频技术研究. E-mail:lcm0421@126.com
  • About author:李春茂(1958-),男,副教授,主要从事LED技术研发与应用和电磁场理论与射频技术研究.
  • Supported by:

    广东省绿色能源技术重点实验室资助项目(2008A060301002)

摘要: 针对现有陷波超宽带天线的陷波带宽难以控制的问题,提出一种陷波带宽可控的缝隙超宽带天线.首先采用宽矩形缝隙天线辐射产生超宽带特性,使其带宽能覆盖3.1~10.6GHz频段;然后在地板嵌入一对倒L形槽来实现陷波特性,陷波带宽可以通过调整L形槽的宽度或位置来控制;最后设计并加工了一副在5.0~6.0GHz频段内具有阻带特性的超宽带天线,有效地阻隔了无线局域网系统对超宽带系统的影响.

关键词: 超宽带天线, 陷波特性, 缝隙天线, L形槽, 可控陷波带宽

Abstract:

As the notched bandwidth of the existing band-notched ultra-wideband(UWB) antennas are difficult to control,this paper presents a novel kind of UWB slot antenna with controllable notched bandwidth.In the investigation,first,a broadened rectangular solt antenna is used to generate ultra-wideband characteristics covering 3.1~10.6GHz band.Then,a pair of inverted L-shaped slits is embedded in the ground to create a band-notched function.The notched bandwidth can be easily controlled by adjusting the width and location of the slits.Finally,an UWB antenna with rejection band at 5.0~6.0GHz is successfully designed and fabricated,which effectively eliminates the potential interference from WLAN.

Key words: ultra-wideband antenna, notched characteristic, slot antenna, L-shaped slit, controllable notched bandwidth