The communication distance of RFID depends on the type of RFID (Active or Passive), RF output power of Reader/Writer, Antenna gain of tag and Reader/Writer, user environment, and so on. However, the communication distance for Active tag is around several tens of meters and one for Passive type in HF band is around several tens of centimeters in general, In UHF band, almost all of the tag’s communication distance is around 6m.
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・Our reader/writers and antennas |