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This work demonstrates that a RFID Gen2 reader on a moving cart can offer tag reading rates close to 100%, provided that multiplexing (and not splitting) is used at the antennas connected to the reader, by exploiting the changes (due to mobility) of the wireless propagation channel. Library RFID systems could largely benefit of such cost-effective approach, given that only a single reader is employed.
In this paper, new planar spiral antennas with meander lines and loads for passive RFID tag application at UHF band are designed and optimized using the gbest-guided Artificial Bee Colony (GABC) algorithm. The GABC is an improved ABC algorithm, which includes global best (gbest) solution information into the search equation to improve the exploitation. The optimization goals are antenna size minimization,...
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