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Metal mount RFID tag antenna excited by integrated loop/IC module

Metal mount RFID tag antenna excited by integrated loop/IC module

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A simple topology is described for radio frequency identification (RFID) tags mountable on metal surfaces. The tag is built around a commercial UHF RFID module combining an IC and a coupling loop. The module is placed in the neighbourhood of a slot which is used both to couple the energy from the module to the patch-like antenna and to miniaturise the tag. A read range of almost 4 m is obtained in the 865–868 MHz band with a 1.6 mm low-cost FR4 substrate.

References

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      • 2. Jingtian, X.I., Terry Tao, Y.E.: ‘Ultra low-profile metal tag antenna design with an emphasis on radiation efficiency’. 2013 IEEE Int. Conf. RFID, Orlando, FL, USA, April–May 2013, pp. 4249.
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      • 3. Du, G.H., Tang, T., Deng, Y.: ‘Dual-band metal skin UHF RFID tag antenna’, Electron. Lett., 2013, 49, (14), pp. 858860 (doi: 10.1049/el.2013.1597).
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