RFID (Radio-Frequency IDentification)

Purpose: an RFID tag provides a unique identifier for the object to which it is attached .

  • a transponder which is a small chip with a typical capacity of 2,000 bytes of data or less
  • a scanning antenna, with a range of up to 20 feet for high-frequency devices. This emits radiation that both:
  • a transceiver with a decoder to interpret the data

  • Process:
  • The RFID tag passes through the field of the scanning antenna and detects the activation signal from the antenna.
  • The RFID chip "wakes up" and transmits the information on its microchip to the scanning antenna.