Active load modulation for contactless near-field communication. - Michael Gebhart; Markus Wobak; Erich Merlin; Christoph Chlestil (RFID-TA, 2012)

Mutual coupling modeling of NFC antennas by using open-source CAD/FEM tools. - Ulrich Muehlmann; Michael Gebhart; Markus Wobak (RFID-TA, 2012)

Physical limits of batteryless HF RFID transponders defined by system properties. - Markus Wobak; Michael Gebhart; Ulrich Muehlmann (RFID-TA, 2012)