A Post Processing Procedure for Surface Acoustic Wave RFID Using COMSOL
Mahsa Pournia1, Morteza Fathipour2
1Mahsa Pournia, TCAD Laboratory Electrical and Computer Engineering Department, Faculty of Engineering, University of Tehran, Tehran, Iran.
2Morteza Fathipour, TCAD Laboratory Electrical and Computer Engineering Department, Faculty of Engineering, University of Tehran, Tehran, Iran.
Manuscript received on March 22, 2013. | Revised Manuscript received on April 13, 2013. | Manuscript published on April 30, 2013. | PP: 491-493 | Volume-2, Issue-4, April 2013. | Retrieval Number: D1489042413/2013©BEIESP
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: In recent years, much attention has been paid to SAW RFID research and its applications. Many methods have been proposed for coding the SAW RFID tags -. Among this, best provided methods for coding these devices is time position and phase encoding. The data capacity of the tags is significantly enhanced by extracting additional phase information from the tag responses .However post processing of the tag in simulation and extraction of the phase from Interrogated signals of the tag is complicate and time consuming. In this work, we have proposed a simple post processing method using COMSOL Multiphysics to find the exact phase of the Interrogated signals of the tag.
Keywords: Surface acoustic wave, SAW RFID tag, Piezoelectric, IDT.