Journal of the Institute of Electronics and Information Engineers (전자공학회논문지)

The Institute of Electronics and Information Engineers (대한전자공학회)
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Magnetic Wireless Power Transfer Antenna Using Ferrite

페라이트를 이용한 자기장 무선전력전송 안테나

  • Ko, Nak-Young (Department of Electronics and Computer Engineering, Ulsan National Institute of Science and Technology) ;
  • Lee, Bon-Young (Department of Electronics and Computer Engineering, Ulsan National Institute of Science and Technology) ;
  • Song, Seong-Kyu (Department of Electronics and Computer Engineering, Ulsan National Institute of Science and Technology) ;
  • Park, Woo-Jin (Department of Electronics and Computer Engineering, Ulsan National Institute of Science and Technology) ;
  • Seo, Seok-Tae (Department of Electronics and Computer Engineering, Ulsan National Institute of Science and Technology) ;
  • Bien, Franklin (Department of Electronics and Computer Engineering, Ulsan National Institute of Science and Technology)
  • 고낙영 (울산과학기술원 전기전자공학과) ;
  • 이본영 (울산과학기술원 전기전자공학과) ;
  • 송성규 (울산과학기술원 전기전자공학과) ;
  • 박우진 (울산과학기술원 전기전자공학과) ;
  • 서석태 (울산과학기술원 전기전자공학과) ;
  • 변영재 (울산과학기술원 전기전자공학과)
  • Received : 2017.06.08
  • Accepted : 2017.07.11
  • Published : 2017.07.25
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Abstract

In this paper, we propose magnetic field wireless power transfer antenna using Ferrite. It is possible to transfer magnetic field wireless power without independent ground by using characteristic of ferrite in the point that conventional magnetic field wireless power transfer was possible with independent grounding. Ferrite has a shielding effect of magnetic field and reduces leakage power, thereby improving transfer efficiency. We propose an antenna for magnetic field wireless power transfer using ferrite and confirmed that it is transmitted by 5W magnetic field wireless power through experiments. The wireless power transfer proposed in this paper can be applied variously to the Internet of things by using the magnetic field wireless power transfer through the metal.

본 연구에서 페라이트를 이용한 자기장 무선전력전송 안테나를 제안하였다. 기존에 추가접지가 있어야 자기장 무선전력전송이 가능하였던 점을 페라이트의 특성을 이용하여 추가접지 없이 자기장 무선전력전송이 가능하게 하였다. 페라이트는 자기장의 차폐효과가 있고 누설전력을 줄여주어 전송효율을 높여준다. 페라이트를 이용하여 자기장 무선전력전송을 위한 안테나를 제안하였고 실험을 통해 5W 자기장 무선전력전송 되는 것을 확인하였다. 본 논문에서 제안한 무선전력전송은 금속을 매개로하는 자기장 무선전력전송으로 사물인터넷 분야에 다양하게 응용 될 수 있다.

Keywords

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