Design of Extremely Wideband Printed Semi-circular-shaped Dipole Antenna

초광대역 인쇄형 반원모양 다이폴 안테나 설계

  • Yeo, Junho (School of Computer and Communication Engineering, Daegu University) ;
  • Lee, Jong-Ig (Department of Electronics Engineering, Dongseo University) ;
  • Park, Jin-Taek (Department of Mobile Communication Engineering, Changshin University)
  • Received : 2013.05.14
  • Accepted : 2013.06.25
  • Published : 2013.09.30


In this paper, a design method for a ultra-wideband printed semi-circular-shaped dipole antenna operating in the band of 1-15 GHz is studied. The effects of the gap between the two arms of the semi-circular-shaped dipole and the radius of the semi-circle on the input reflection coefficient and gain characteristics are examined to obtain the optimal design parameters. The optimized printed semi-circular-shaped dipole antenna is fabricated on an FR4 substrate and the experimental results show that the antenna has a desired extremely wideband characteristic with a frequency band of 1-15 GHz (175%) for a VSWR < 2.


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