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2-D localization and identification based on SAW ID-tags at 2.5 GHz

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2 Author(s)
Bechteler, T.F. ; Fac. of Eng. & Natural Sci., Sabanci Univ., Orhanli-Tuzla, Turkey ; Yenigun, H.

An identification and localization system based on surface acoustic wave (SAW) radio sensors is presented in this paper. This system is able to identify and localize objects within a two-dimensional area. Identification is achieved with a fixed coded passive SAW identification-tag. Localization is carried out with three receiving antennas and with a following analysis of time delay between the sent interrogation signal and the received signals. For practical tests, a special interrogator has been established, as well as the receiving and demodulation unit. The whole system is controlled by a computer.

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Microwave Theory and Techniques, IEEE Transactions on  (Volume:51 ,  Issue: 5 )