Journal of South China University of Technology (Natural Science Edition) ›› 2010, Vol. 38 ›› Issue (12): 56-60.doi: 10.3969/j.issn.1000-565X.2010.12.011

• Electronics, Communication & Automation Technology • Previous Articles     Next Articles

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）

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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