Journal of Jishou University(Natural Sciences Edition)

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Design of UWB Patch Antenna with the Double Band-Notched Characteristics

XI Zaifang,TANG Zhijun,ZENG Zhihao,ZHAN Jie   

  1. (1.College of Information and Electrical Engineering,Hunan University of Science and Technology,Xiangtan 411201,Hunan China;2.College of Physics and Electronic Science,Hunan University of Science and Technology,Xiangtan 411201,Hunan China)
  • Online:2017-07-25 Published:2017-08-01


Aimed at the effects of ultra wideband (UWB) wireless communication systems on the operation of the other existing wireless communication systems,a kind of UWB antenna with IEEE WiMAX and IEEE WLAN notched-bands is proposed.The size of the proposed antenna is 1.0 mm×20 mm×25 mm.A sector step-shaped patch is used as the master radiating element of the antenna,and twp notched bands are realized through embedding the L-shaped slot and half ring-shaped slot on the radiating patch.Furthermore,the impedance bandwidth of the antenna is broadened through adding two rectangular patches beside the master radiator.The simulation results show that the bandwidth of the antenna is 3.0~12.9 GHz with the notched bands of 3.3~3.8GHz and 5.2~5.8GHz,the average gain of the antenna is about 4.5 dBi,and it has a stable quasi- omnidirectional radiation characteristics.The antenna can meet the application requirements of a variety of ultra wideband communication systems.

Key words: ultra-band antenna, double band-notched characteristics, slot antenna

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