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Electronics and Telecommunications Research Institute (한국전자통신연구원)
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Ultra-small Marker Beacon Antenna with a Wide Frequency Tuneable Capacitive Plate

  • Park, Ju-Derk (Hyper-connected Communication Research Laboratory, ETRI) ;
  • Choi, Byeong-Cheol (Hyper-connected Communication Research Laboratory, ETRI) ;
  • Kim, Nam (School of Information and Communication Engineering, Chungbuk National University) ;
  • Jung, Young-Bae (Department of Electronics and Control Engineering, Hanbart National University)
  • Received : 2016.03.09
  • Accepted : 2016.07.26
  • Published : 2016.10.01
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Abstract

In this paper, an ultra-small marker beacon antenna operated in the VHF-band is proposed. This antenna has a modified linear IFA structure with a lumped capacitor and a capacitive plate for frequency tuning and impedance matching. The capacitive plate is directly connected to the end of a linear radiator and is separated from the antenna ground by 1 mm. The main operating frequency is mainly controlled by the size and dielectric constant of the capacitive plate. The lumped capacitor is useful for fine frequency tuning. Using the proposed structure, an ultra-small marker beacon antenna can be realized with a length of 0.04 ${\lambda}_0$.

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References

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