| A Wireless Identification System Using an Efficient Antenna Based on Passive Surface Acoustic Wave(SAW) Devices |
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Ki-Hun Chang1, Woo-Sung Lee1, Young-Joong Yoon1, Jae-Kwon Kim2, Joo-Yong Park2, Jin-Wook Burm2 |
1Department of Electrical and Electronic Engineering, Yonsei University
2Department of Electronic Engineering and Interdiscplinary Program of Integrated Biotechnology, Sogang University |
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| Abstract |
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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. |
| Key words:
Surface Acoustic Wave(SAW), RFID Tag, Antenna Efficiency, Piezoelectric Material |
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