Influence of the Position of a UHF-RFID Tag Relative to the Antenna in the Information Reading

The main idea of this paper is to determine the influence of the position and the angle of a tag in the reading of an RFID system, therefore we have developed two different experiments. In the first one, a model with a tag was moved perpendicular to two antennas fixed to a vertical support. In the second one, the same model was moved through two vertical supports with two RFID-UHF antennas each. The results show that the position and the angle of the tag broadly affect the distance of the measurements obtained.