公开(公告)号：US09984321B2

公开(公告)日：2018-05-29

申请号：US14973802

申请日：2015-12-18

Applicant: INFINEON TECHNOLOGIES AG

Inventor： Stephan Rampetzreiter ,  Martin Buchsbaum ,  Jakob Jongsma ,  Georg Skacel ,  Bernhard Wedl ,  Andreas Woerle

IPC: G06K19/07 ,  G06K19/077

CPC classification number: G06K19/0726 ,  G06K19/0723 ,  G06K19/07794

Abstract: According to one embodiment, a chip card is described including a chip, an antenna, a coupling structure configured to transmit energy from the antenna to the chip and a control element configured to control, depending on a field strength of a magnetic field to which the chip card is exposed, at least one of the resonance frequency of the antenna, the quality factor of the antenna and an energy transmission efficiency of the coupling structure.