COMPACT FLEXIBLE HIGH GAIN ANTENNA FOR HANDHELD RFID READER
    1.
    发明申请
    COMPACT FLEXIBLE HIGH GAIN ANTENNA FOR HANDHELD RFID READER 审中-公开
    用于手持RFID读写器的紧凑灵活高增益天线

    公开(公告)号:US20090174557A1

    公开(公告)日:2009-07-09

    申请号:US11968972

    申请日:2008-01-03

    IPC分类号: G08B13/14 H01Q17/00

    摘要: A compact flexible high gain antenna is disclosed which includes a co-planar array of at least three substantially parallel main conducting antenna elements, a reflector, a driven element, and a director. Each of these elements may be terminated on the ends by a stub element, and the reflector and the director may include an intermediate meander element. Stub elements capacitively load the antenna, while meander elements inductively load the antenna, and the loading affects the resonant frequency of the antenna. The conducting antenna elements may be affixed to a flexible dielectric substrate and may be bent or curved into different compact shapes, suitable for fitting manufacturing form factors for a handheld RFID reader. The antenna has a high directional gain which results in a longer operating range.

    摘要翻译: 公开了一种紧凑型柔性高增益天线,其包括至少三个基本上平行的主导电天线元件,反射器,从动元件和导向器的共面阵列。 这些元件中的每一个可以通过短截线元件在端部端接,并且反射器和引导件可以包括中间曲折元件。 Stub元件电容性地加载天线,而曲折元件感应地加载天线,并且负载影响天线的谐振频率。 导电天线元件可以固定到柔性电介质基底上,并且可以被弯曲或弯曲成不同的紧凑形状,适合于适合用于手持RFID阅读器的制造形状因子。 天线具有高的方向增益,这导致更长的操作范围。

    METHOD AND SYSTEM TO DETERMINE THE POSITION, ORIENTATION, SIZE, AND MOVEMENT OF RFID TAGGED OBJECTS
    2.
    发明申请
    METHOD AND SYSTEM TO DETERMINE THE POSITION, ORIENTATION, SIZE, AND MOVEMENT OF RFID TAGGED OBJECTS 有权
    确定RFID标签对象的位置,方向,尺寸和运动的方法和系统

    公开(公告)号:US20100328073A1

    公开(公告)日:2010-12-30

    申请号:US12495732

    申请日:2009-06-30

    IPC分类号: G08B13/14

    摘要: A method and system of determining spatial identification of an object, such as orientation, size, location, range, and/or movement, using an RFID system is disclosed. An RFID system can comprise one or more RFID reader receiving antennas that query one or more RFID tags coupled to the object. The measurement of the phase of the tag responses at the reader antennas and phase differentials as a function of distance, frequency, and time are the basis of spatial identification. The system can work with conventional Gen 2 tags and readers without modification of the tags or protocol.

    摘要翻译: 公开了一种使用RFID系统来确定对象的空间识别的方法和系统,例如方向,大小,位置,范围和/或移动。 RFID系统可以包括一个或多个RFID读取器接收天线,其查询耦合到对象的一个​​或多个RFID标签。 在读取器天线处的标签响应的相位的测量和作为距离,频率和时间的函数的相位差是空间识别的基础。 该系统可以与传统的第2代标签和读卡器配合使用,而无需修改标签或协议。