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    • 6. 发明申请
    • RFID device with magnetic coupling
    • 具有磁耦合的RFID设备
    • US20060044769A1
    • 2006-03-02
    • US10931863
    • 2004-09-01
    • Ian ForsterThomas Weakley
    • Ian ForsterThomas Weakley
    • H05K7/06
    • H01Q7/00G06K19/07749G06K19/07756H01Q1/2208
    • An RFID device, such as an RFID tag or label, includes a magnetic coupler between an interposer or strap, and an antenna. The interposer or strap includes a transponder chip and an interposer magnetic coupling element that is operatively coupled to the transponder. An antenna portion magnetic coupling element is operatively coupled to the antenna. The magnetic coupling element s together constitute a magnetic coupler that is used to magnetically couple the transponder chip of the interposer to the RFID antenna. A high permeability material may be used to enhance the magnetic coupling between the magnetic coupling elements. The magnetic coupling elements single-turn conductive loops or multiple-turn coils. The magnetic coupler may function as a transformer, with the voltage across the antenna transformed to a different voltage across the transponder chip, and vice versa.
    • 诸如RFID标签或标签的RFID设备包括插入器或带子之间的磁耦合器和天线。 插入器或带包括可转接器芯片和可操作地耦合到应答器的插入器磁耦合元件。 天线部分磁耦合元件可操作地耦合到天线。 磁耦合元件一起构成磁耦合器,用于将插入器的应答器芯片磁耦合到RFID天线。 可以使用高磁导率材料来增强磁耦合元件之间的磁耦合。 磁耦合元件单圈导通环或多匝线圈。 磁耦合器可以用作变压器,天线两端的电压在转发器芯片上转换成不同的电压,反之亦然。