Passive UHF Radio Frequency Identification (RFID) tags are potentially low cost and offer good read range for object identification in various types of applications. However, the performance of conventional passive UHF RFID tags will be greatly affected when the tags are attached to metallic objects. In this paper, a small passive UHF RFID tag consisting a loop antenna designed specifically for attaching to metallic objects is presented. Theoretical design steps for this tag design, as well as significant simulation results are included. The results for practical read range performance measurement of this tag are also presented.
After a trademark dispute, the EPC Prototyping Platform is now called "Fosstrak" (previously Accada). Fosstrak stands for "free and open source software for track and trace".
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