AN ANTENNA ON A REMOVABLE CARD
    30.
    发明授权

    公开(公告)号:EP2798698B1

    公开(公告)日:2018-11-21

    申请号:EP12820938.4

    申请日:2012-12-27

    申请人: SMK Corporation

    IPC分类号: H01Q7/08 H01Q9/16 H01Q1/22

    CPC分类号: H01Q7/08 H01Q1/2275 H01Q9/16

    摘要: An antenna on a removable card An antenna on a removable memory card (1) is intended for the creation of contactless communication channel of the mobile communication device. The antenna is in the form of a high-frequency transformer (2) with an oblong ferrite kernel (3) with resonantly tuned primary winding L1. The emitted signal is brought to the primary winding L1. The secondary winding L2 is left open circuited, without closing the load circuit in a contact way, without ohm load; it emits electrical field with its outputs. The high-frequency transformer (2) can be in the form of auto-transformer with one winding. The signal emitted in the direction towards the removable memory card (1) can be received through the auxiliary winding L3 or through an independent receiving antenna (8). The secondary winding L2 can have a larger number of loops than the primary winding L1 or it can be formed by only one winding in the form of a pipe.