Ultra-Low-Cost RFID Based on Soft Magnetic Ribbons

作者：Huber Thomas^*; Bergmair Bernhard; Vogler Christoph; Bruckner Florian; Breth Leoni; Hetaba Walid; Hrkac Gino; Suess Dieter

来源：IEEE Transactions on Magnetics, 2014, 50(10): 4004905.

DOI：10.1109/TMAG.2014.2327200

• Identification
• passive
• radio-frequency identification (RFID)
• wireless

An ultra-low-cost radio-frequency identification tag is presented comprising a soft magnetic ribbon that is biased by an adjacent permanent magnet. The tag is read by measuring changes in the ribbon%26apos;s magnetization while applying magnetic ac and dc fields. A harmonic analysis of the response signal allows us to determine both the ribbons%26apos; soft magnetic properties and the strength of the permanent magnet. When manufacturing the tags each of these two parameters can be independently chosen out of a set of well distinguishable values. This constitutes a two-digit identification system. A set of eight different tags was demonstrated to be identifiable.

• 出版日期2014-10