A model to estimate the RFID read-region in real environments

The reading range is one of the most critical performance indicators of a radiofrequency identification system and depends on many physical and geometrical parameters. An accurate prediction of the read zone may be accomplished by a time-consuming electromagnetic modelling accounting for the antennas and the interaction with the environment. This paper proposed, instead, a fast prediction model, based on a small set of data and parametric antenna representation, which is demonstrated to achieve the same accuracy of a fullwave 3D model in application to realistic environments. The derived formulas are ready to use and maybe useful for the planning and optimization of reader-tag networks.