Concept for determining the position or orientation of a transponder in an RFID system

摘要

A method for determining the position or orientation of a transponder by inductive coupling in a radio system, wherein the radio system includes a transceiver having antenna means, comprising a step of generating a magnetic alternating field by means of the transceiver and the antenna means and a step of determining an association signal representing a measure of inductive coupling between the antenna means of the transceiver and the transponder, wherein a distance or orientation of the transponder to the antenna means may be associated to the inductive coupling.