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公开(公告)号：US08810371B2
公开(公告)日：2014-08-19
申请号：US12996035
申请日：2009-06-11
CPC分类号： G06K7/0008 , G06K7/10346
摘要： Where a single cable conveys bidirectional RF signals and bidirectional data using a data carrying DC power signal where the RF signals and the bidirectional data carrying DC power signal are separated using frequency selective networks. Alternatively a single cable conveys bidirectional RF signals and bidirectional data using a modulated RF data signal where the RF signals and the bidirectional modulated RF data signal are separated using frequency selective networks. A array of switchable antennas where RF switching elements are integral to the antennas is connected to the single cable and is powered by and communicated with through the cable. The array of switchable antennas can be arranged to produce an interrogation field in any of one, two or three dimensions by the antennas being arranged to provide for a series of parallel spaced conductors through which currents are sequentially switched in order to produce both tangential and normal magnetic field components. The spatial relationship of the sequentially switched currents is chosen to ensure that at different times a tangential and a normal magnetic field are produced at the same location. The conductors are preferably arranged in a planar fashion and the tangential and normal magnetic fields are produced above the planar surface. A single layer of parallel spaced conductors provides for one or two dimensional operations. Adding a second parallel layer of orthogonally oriented parallel spaced conductors provides three dimensional operations where currents are sequentially switched in both layers.
摘要翻译： 其中单个电缆使用携带DC电力信号的数据传送双向RF信号和双向数据，其中RF信号和携带DC电力信号的双向数据使用频率选择网络分离。 或者，单个电缆使用调制的RF数据信号来传送双向RF信号和双向数据，其中RF信号和双向调制的RF数据信号使用频率选择网络分离。 其中RF开关元件与天线成一体的可切换天线阵列连接到单个电缆，并通过电缆供电并与之通信。 可切换天线的阵列可以被布置成通过天线被布置成产生一个，两个或三个维度中的任何一个的询问场，以提供一系列平行隔开的导体，通过该导体顺序切换电流，以产生切向和正常 磁场分量。 选择顺序切换电流的空间关系，以确保在不同时间在同一位置产生切向和正常磁场。 导体优选地以平面方式布置，并且在平坦表面上方产生切向和正常磁场。 单层平行隔开的导体提供一维或二维操作。 添加正交取向的平行间隔导体的第二平行层提供三维操作，其中电流在两层中依次切换。
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公开(公告)号：US20110121945A1
公开(公告)日：2011-05-26
申请号：US12996035
申请日：2009-06-11
IPC分类号： G06K7/01
CPC分类号： G06K7/0008 , G06K7/10346
摘要： Where a single cable conveys bidirectional RF signals and bidirectional data using a data carrying DC power signal where the RF signals and the bidirectional data carrying DC power signal are separated using frequency selective networks. Alternatively a single cable conveys bidirectional RF signals and bidirectional data using a modulated RF data signal where the RF signals and the bidirectional modulated RF data signal are separated using frequency selective networks. A array of switchable antennas where RF switching elements are integral to the antennas is connected to the single cable and is powered by and communicated with through the cable. The array of switchable antennas can be arranged to produce an interrogation field in any of one, two or three dimensions by the antennas being arranged to provide for a series of parallel spaced conductors through which currents are sequentially switched in order to produce both tangential and normal magnetic field components. The spatial relationship of the sequentially switched currents is chosen to ensure that at different times a tangential and a normal magnetic field are produced at the same location. The conductors are preferably arranged in a planar fashion and the tangential and normal magnetic fields are produced above the planar surface. A single layer of parallel spaced conductors provides for one or two dimensional operations. Adding a second parallel layer of orthogonally oriented parallel spaced conductors provides three dimensional operations where currents are sequentially switched in both layers.
摘要翻译： 其中单个电缆使用携带DC电力信号的数据传送双向RF信号和双向数据，其中RF信号和携带DC电力信号的双向数据使用频率选择网络分离。 或者，单个电缆使用调制的RF数据信号来传送双向RF信号和双向数据，其中RF信号和双向调制的RF数据信号使用频率选择网络分离。 其中RF开关元件与天线成一体的可切换天线阵列连接到单个电缆，并通过电缆供电并与之通信。 可切换天线的阵列可以被布置成通过天线被布置成产生一个，两个或三个维度中的任何一个的询问场，以提供一系列平行隔开的导体，通过该导体顺序切换电流，以产生切向和正常 磁场分量。 选择顺序切换电流的空间关系，以确保在不同时间在同一位置产生切向和正常磁场。 导体优选地以平面方式布置，并且在平坦表面上方产生切向和正常磁场。 单层平行隔开的导体提供一维或二维操作。 添加正交取向的平行间隔导体的第二平行层提供三维操作，其中电流在两层中依次切换。
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