Title :
A Novel FEA Simulation Model for RFID SAW Tag
Author :
Peng, Dasong ; Yu, Fengqi
Author_Institution :
Dept. of Integrated Electron., Chinese Acad. of Sci., Shenzhen, China
fDate :
8/1/2009 12:00:00 AM
Abstract :
Based on finite element analysis, we propose a simulation model for radio frequency identification (RFID) SAW tag devices. Electric properties of metal electrode on substrate greatly affect the characteristics of the device and are discussed in the paper. Then the right and left boundary conditions for the device are applied to remove large unwanted waves generated by wave propagation near the boundaries. To save computation time, a 2-D model is proposed, where some mesh skills are applied. The tag device is simulated in 2 steps. First, we use modal analysis to get the device phase velocity and harmonic frequency. Second, a tag with multireflectors is simulated. Based on the simulations, we have designed and fabricated a SAW tag. A comparison is made between simulation and experimental results and shows our simulation model agrees with the experiment very well.
Keywords :
finite element analysis; radiofrequency identification; surface acoustic wave devices; surface acoustic waves; transponders; FEA simulation model; RFID SAW tag; SAW tag design; SAW tag fabrication; boundary conditions; finite element analysis; harmonic frequency; metal electrode electric properties; modal analysis; near boundary wave propagation; phase velocity; radiofrequency identification; Analytical models; Boundary conditions; Computational modeling; Electrodes; Finite element methods; Frequency; Modal analysis; RFID tags; Radiofrequency identification; Surface acoustic waves;
Journal_Title :
Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on
DOI :
10.1109/TUFFC.2009.1240
