This paper discusses the main issue of commercial RFID tags, which is the reduced range of the RFID tags when placed in the proximity of complex environments (e.g. food or human bodies). A short overview of the design aspects of UHF RFID antennas in complex environments is presented. Water, blood, heart and muscle tissue are used as environments. An antenna with a protecting ground plane that reduces environmental influence is presented. Several system-level measurements were done in order to compare the prototype (including and embedded IC) with commercially available RFID tags. In addition, a robust antenna with a reduced size (factor of 5) is presented with an efficiency of 84% at 868 MHz when placed on a water tank.
|Title of host publication||Proceedings of the 7th European Conference on Antennas and Propagation (EUCAP), 8-12 April 2013, Gothenburg, Sweden|
|Place of Publication||Piscataway|
|Publisher||Institute of Electrical and Electronics Engineers|
|Publication status||Published - 2013|
|Event||7th European Conference on Antennas and Propagation (EuCAP 2013) - Gothenburg, Sweden|
Duration: 8 Apr 2013 → 12 Apr 2013
|Conference||7th European Conference on Antennas and Propagation (EuCAP 2013)|
|Abbreviated title||EuCAP 2013|
|Period||8/04/13 → 12/04/13|
Dubok, A., Coenen, T. J., Zamanifekri, A., & Smolders, A. B. (2013). Robust UHF RFID antennas in complex environments. In Proceedings of the 7th European Conference on Antennas and Propagation (EUCAP), 8-12 April 2013, Gothenburg, Sweden (pp. 1636-1640). Piscataway: Institute of Electrical and Electronics Engineers.