Proceedings of the IEEK Conference (대한전자공학회:학술대회논문집)

The Institute of Electronics and Information Engineers (대한전자공학회)
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Change of Recognition Range According to Resonance Frequency of the 13.56MHz RFID Transponder

13.56MHz RFID 트랜스폰더의 공진 주파수에 따른 인식거리의 변화

  • 윤기석 (인천대학교 공과대학 전자공학과) ;
  • 양운근 (인천대학교 공과대학 전자공학과) ;
  • 유홍준 ((주) 제이티)
  • Published : 2005.11.26
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Abstract

In this paper, we investigated the change of recognition distance according to the resonance frequency of the transponder for the ISO 14443 Type A 13.56MHz RFID(Radio Frequency IDentification) system. We made thirteen transponders of the same size. The dimension of the transponder is $84.65mm{\times}53.00mm{\times}0.45mm$. We measured the resonance frequency by means of an inductive coupling. The measured resonance frequencies were between 12.9MHz and 17.3MHz. We measured the maximum distances where the transponder's USN(Unique Serial Number) was recognized and the subcarrier was observed. The measurement results show that we can obtain good performance when the Type A transponder has the resonance frequency around 14.2MHz for the given case.

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