CST – Computer Simulation Technology

Title:
DESIGN, DEVELOPMENT, AND PERFORMANCE EVALUATION OF A COMPACT AND LONG-RANGE PASSIVE UHF RFID TAG
Author(s):
L. Catarinucci, R. Colella, L. Tarricone
Source:
MICROWAVE AND OPTICAL TECHNOLOGY LETTERS
Vol./Issue/Date:
Volume: 54, Issue: 5, May 2012
Year:
2012
Page(s):
1335 - 1339
Keywords:
passive RFID tag, antenna design, RSSI, radar cross section, tag sensitivity, UHF
Abstract:
Passive radio frequency identification (RFID) tags can be classified in terms of reading range. Short-range tags communicate with the reader up to a few centimetres. Medium-range tags reach almost 5 meters. Long-range tags work properly up to almost 12 meters. Nevertheless, the longer is the working distance, the larger is the tag size. In this work, a new passive UHF RFID tag has been designed, realized, and tested. Based on the joint use of various design and miniaturization techniques, our device is as compact as a medium-range tag. The tag prototype has been extensively tested and compared with both a commercial medium-range tag with similar size and a wellperforming long range tag. For all such tags, measurements of received signal strength indication, working range, tag sensitivity, and differential radar cross section have been carried out and compared. Results are impressive. Despite the compactness of the proposed tag, its performance is appreciably better than the medium-range tag and even comparable with the tested long range one.
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