RFID – Passive Transponder

Passive RFID transponders obtain their energy for transmitting information inductively from the received radio waves. The amount of data stored is considerably less than with active RFID transponders. A unique identification number (GUID = Globally Unique Identifier) is usually stored in their memory. Some passive transponders are equipped with a rewritable memory.

Compared to active RFID transponders, passive RFID transponders are smaller and lighter, have a short range, an almost unlimited service life and are comparatively inexpensive.

Features of a passive transponder at a glance

  • inductive energy supply from the received radio waves
  • can only be read
  • lower memory capacity
  • Memory for unique identification number GUID = Globally Unique Identifier (globally unique number)
  • smaller and lighter than active RFID transponders
  • short transmission range
  • almost unlimited service life
  • inexpensive (but currently not cheap enough compared to barcodes)

You can find more information under The use of labels.

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