Journal of electromagnetic engineering and science

The Korean Institute of Electromagnetic Engineering and Science (한국전자파학회)
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A Wireless Identification System Using an Efficient Antenna Based on Passive Surface Acoustic Wave(SAW) Devices

  • Chang, Ki-Hun (Department of Electrical and Electronic Engineering, Yonsei University) ;
  • Lee, Woo-Sung (Department of Electrical and Electronic Engineering, Yonsei University) ;
  • Yoon, Young-Joong (Department of Electrical and Electronic Engineering, Yonsei University) ;
  • Kim, Jae-Kwon (Department of Electronic Engineering and Interdiscplinary Program of Integrated Biotechnology, Sogang University) ;
  • Park, Joo-Yong (Department of Electronic Engineering and Interdiscplinary Program of Integrated Biotechnology, Sogang University) ;
  • Burm, Jin-Wook (Department of Electronic Engineering and Interdiscplinary Program of Integrated Biotechnology, Sogang University)
  • Published : 2007.03.31
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Abstract

A UHF band wireless identification system based on passive surface acoustic wave(SAW) devices is presented in this paper. SAW ID tags were fabricated on Y-Z $LiNbO_3$ piezoelectric substrate with a good electro-mechanical coupling property. To reduce degradation of the antenna performance associated with the piezoelectric materials, an efficient design of the SAW RFID antenna is introduced. By measuring the parameters of the SAW ID tag, the performance of the antenna was tested by experimentation.

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References

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