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    • 7. 发明申请
    • ELECTROMAGNETIC COUPLER ARRANGEMENT
    • WO2021180319A1
    • 2021-09-16
    • PCT/EP2020/056555
    • 2020-03-11
    • SATO HOLDINGS KABUSHIKI KAISHA
    • FRANK, Markus
    • G06K17/00G06K7/10G06K7/00
    • The present disclosure broadly relates to a wireless electromagnetic coupler arrangement for reactive near field coupling comprising a sequential array of coupling elements which are geometrically arranged one-or two-dimensionally. By means of feeding an unmodulated wave of electromagnetic energy to each of the coupling elements and a respective associated harvester element, in an initial sensing state, an automatic selection of a single coupling element or plural coupling elements which establish a particularly strong and efficient interaction with an inlay is performed. By means of a respective feedback loop, a switchable array of resistances is used to activate the selected coupling element(s) for coupling of information to/from the loop and to de- activate the remaining coupling elements. The self adaptive array of coupling elements is flexibly applicable for coupling to planar metallic traces (in particular: RFID inlays) of arbitrary geometric shape without the need for a specific calibration or location procedure. There is no need for scanning the inlay geometry ("inlay profiling") or for external control either.