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Carrier frequency adaptation approach

: Jacobi, Rebekka C.; Süss, Andreas; Bögel, Gerd vom; Kolossa, Dorothea

Institute of Electrical and Electronics Engineers -IEEE-:
IEEE International Conference on RFID 2015. USB-Stick : April 15-17, 2015, San Diego, CA, USA
Piscataway, NJ: IEEE, 2015
ISBN: 978-1-4799-1936-9 (USB-Stick)
International Conference on RFID <9, 2015, San Diego/Calif.>
Fraunhofer IMS ()
RFID; sensors; inductive power transmission

Readers for passive RFID and sensor transponders in harsh environments, e.g. for transponders embedded in or covered by metal in medical or industrial environments, need a particular design. It is a challenge to supply the transponder with energy, since a varying environment has a heavy impact on the transmission channels for energy and data. In our following suggestion for an optimal adaptive design, the influence of the environment is taken into account in a model of a transponder system. Applying our adaptation approach induces an improvement of 7:30 dB for the voltage at the transponder.