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Published in:
2019 | OriginalPaper | Chapter
11. Radio Frequency Identification
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Abstract
Radio frequency identification, RFID, uses electromagnetic fields to transfer data wirelessly. Common uses of RFID are entry passes to secure sites, library book logging, or tracking component parts in a production process. Passive RFID tags consist only of an antenna and a microchip, whose shadow can be seen by holding an RFID card up to a light. Passive RFID tags are powered by the RFID reader’s electromagnetic field to receive messages from the RFID reader and transmit messages to the RFID reader.