Journal of electromagnetic engineering and science

  • 제12권2호
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  • Pages.176-184
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  • 2012
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  • 2671-7255(pISSN)
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  • 2671-7263(eISSN)
한국전자파학회 (The Korean Institute of Electromagnetic Engineering and Science)
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Effects of a Metal Plane on a Meandered Slot Antenna for UHF RFID Applications

  • Kim, Ji-Kwon (Dept. of Electrical and Electronics Engineering, Yonsei University) ;
  • Oh, Il-Young (Dept. of Electrical and Electronics Engineering, Yonsei University) ;
  • Koo, Tae-Wan (Dept. of Electrical and Electronics Engineering, Yonsei University) ;
  • Kim, Jun-Chul (System Packaging Center of Korea Electronics Technology Institute) ;
  • Kim, Dong-Su (System Packaging Center of Korea Electronics Technology Institute) ;
  • Yook, Jong-Gwan (Dept. of Electrical and Electronics Engineering, Yonsei University)
  • 투고 : 2012.05.02
  • 심사 : 2012.06.05
  • 발행 : 2012.06.30
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초록

In this paper, the effects of a metal plane on the performance of a meandered slot RFID antenna are evaluated in a real environment, and 3 metal plane cases are considered (the most likely scenarios in which metal conductive materials are placed near the tag antenna). The metal plane effects can be categorized as matching degradation and antenna gain variation. First, matching degradation due to the antenna's induced mutual impedance is experimentally investigated. In addition, the gain variation is investigated to figure out the change in the radiation characteristics. With the derived antenna parameters, the read range is calculated with the Friis transmission equation and measured to analyze the effects of a metal plane on RFID system performance. The calculated and measured read range varies from 9.3 m to 19.1 m as the distance between the RFID antenna and the metal plane changes.

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참고문헌

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피인용 문헌

  1. A NOVEL UHF RFID SLOT COUPLED METALLIC TAG ANTENNA FOR STEEL-BAR APPLICATIONS vol.46, 2014, https://doi.org/10.2528/PIERC13101101
  2. Artificial magnetic conductor loaded long-range passive RFID tag antenna mountable on metallic objects vol.50, pp.5, 2014, https://doi.org/10.1049/el.2013.2671
  3. Analysis of Flip Chip Bonding for Performance Stability of UHF RFID Tags vol.4, pp.10, 2014, https://doi.org/10.1109/TCPMT.2014.2345614