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Study of the passive microwave RFID tag range using distance‐dependent reflection coefficient over multipath channel
Author(s) -
Wei Fu,
Jianguo Ma
Publication year - 2009
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.24602
Subject(s) - microwave , multipath propagation , reflection coefficient , range (aeronautics) , radio frequency identification , reflection (computer programming) , electronic engineering , channel (broadcasting) , engineering , computer science , acoustics , electrical engineering , telecommunications , physics , computer security , programming language , aerospace engineering
The distance‐dependent reflection coefficients are investigated based on a multi‐ray model at microwave frequency bands. Tag range of passive microwave radio‐frequency identification (RFID) systems is then calculated taking into account the tagged object material characteristic. Obtained values are verified through the precise simulations based on a 3‐D physical finite element model. The results shown that the proposed method provides a good agreement than that obtained by existing methods. The analytical method can be used for the empirical tag range value to avoid reader collision while ensuring system reliability. © 2009 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 2266–2268, 2009; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24602