Multi-band RFID encoder
    1.
    发明授权
    Multi-band RFID encoder 有权
    多频RFID编码器

    公开(公告)号:US07342499B2

    公开(公告)日:2008-03-11

    申请号:US11340234

    申请日:2006-01-26

    IPC分类号: G08B13/14

    摘要: In one embodiment, a multi-band near-field antenna for an RFID encoder includes a substrate; an internal coil antenna defined within the substrate; an annular ground plane defined on a first surface of the substrate; a second ground plane defined on an opposing second surface of the substrate, wherein the annular ground plane and the second ground plane form a Faraday cage for the internal coil antenna; and a second antenna disposed on the opposing second surface within the annulus defined by the annular ground plane.

    摘要翻译: 在一个实施例中,用于RFID编码器的多频带近场天线包括基板; 限定在所述基板内的内部线圈天线; 限定在所述基板的第一表面上的环形接地平面; 限定在所述基板的相对的第二表面上的第二接地平面,其中所述环形接地平面和所述第二接地平面形成用于所述内部线圈天线的法拉第笼; 以及设置在由环形接地平面限定的环形空间内的相对的第二表面上的第二天线。

    Multi-band RFID encoder
    2.
    发明申请
    Multi-band RFID encoder 有权
    多频RFID编码器

    公开(公告)号:US20070171071A1

    公开(公告)日:2007-07-26

    申请号:US11340234

    申请日:2006-01-26

    IPC分类号: G08B13/14

    摘要: In one embodiment, a multi-band near-field antenna for an RFID encoder includes a substrate; an internal coil antenna defined within the substrate; an annular ground plane defined on a first surface of the substrate; a second ground plane defined on an opposing second surface of the substrate, wherein the annular ground plane and the second ground plane form a Faraday cage for the internal coil antenna; and a second antenna disposed on the opposing second surface within the annulus defined by the annular ground plane.

    摘要翻译: 在一个实施例中,用于RFID编码器的多频带近场天线包括基板; 限定在所述基板内的内部线圈天线; 限定在所述基板的第一表面上的环形接地平面; 限定在所述基板的相对的第二表面上的第二接地平面,其中所述环形接地平面和所述第二接地平面形成用于所述内部线圈天线的法拉第笼; 以及设置在由环形接地平面限定的环形空间内的相对的第二表面上的第二天线。