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    Reflector-backed RFID slot antenna with a cosecant-squared-like radiation pattern
    1.
    发明授权
    Reflector-backed RFID slot antenna with a cosecant-squared-like radiation pattern 有权
    反射器支持的RFID插槽天线具有满意平方的辐射图

    公开(公告)号：US08866684B2

    公开(公告)日：2014-10-21

    申请号：US13407089

    申请日：2012-02-28

    申请人： Rehan K. Jaffri ,  Richard T. Knadle

    发明人： Rehan K. Jaffri ,  Richard T. Knadle

    IPC分类号： H01Q13/10

    CPC分类号： H01Q13/18 ,  H01Q1/007 ,  H01Q1/2216 ,  H01Q13/10 ,  H01Q19/10

    摘要： An antenna method and apparatus includes a slot antenna configured within a ground plane and a conductive reflector backing the slot antenna and configured to reflect RF energy. The slot antenna, ground plane, and the reflector cooperatively form a reflector-backed slot antenna and a radial-mode waveguide providing an inverse, mirrored, substantially cosecant-squared radiation pattern.

    摘要翻译： 一种天线方法和装置包括配置在接地平面内的缝隙天线和背衬狭缝天线的导电反射器，并被配置为反射RF能量。 缝隙天线，接地平面和反射器协同地形成反射器背面缝隙天线和径向模式波导，其提供反向，镜像，基本上均匀平方的辐射图。

    Distributed comb tapped multiband antenna
    2.
    发明授权
    Distributed comb tapped multiband antenna 有权
    分布式梳状多频带天线

    公开(公告)号：US08810465B2

    公开(公告)日：2014-08-19

    申请号：US13297976

    申请日：2011-11-16

    申请人： Richard T. Knadle ,  Mark W. Duron ,  Rehan K. Jaffri

    发明人： Richard T. Knadle ,  Mark W. Duron ,  Rehan K. Jaffri

    IPC分类号： H01Q9/16 ,  H01Q5/00 ,  H01Q19/30 ,  H01Q9/40 ,  H01Q21/06 ,  H01Q9/28

    CPC分类号： H01Q5/0051 ,  H01Q5/357 ,  H01Q9/285 ,  H01Q9/40 ,  H01Q19/30 ,  H01Q21/062

    摘要： A distributed comb tapped multiband antenna structure includes a PIFA-like antenna radiator having tap structures, and a counterpoise to the antenna radiator, wherein the tap structures include shunt connections to the counterpoise. A second antenna radiator is collinear and opposing the antenna radiator while sharing the counterpoise in common with the antenna radiator, such that the antenna structure is configured as a balanced dipole. The antenna structure can be contained internally within a single device housing and can operate over multiple frequency bands. The antenna provides high performance over a considerable bandwidth within each of the multiple frequency bands of operation, even where the frequency bands are not harmonically related.

    摘要翻译： 分布式梳状抽头多频带天线结构包括具有抽头结构的PIFA类天线辐射器和与天线辐射器的平衡，其中抽头结构包括到平衡线的分流连接。 第二天线辐射器与天线辐射器共线并与天线辐射器共用，与天线辐射器共同地共用平衡线，使得天线结构被配置为平衡偶极子。 天线结构可以内部包含在单个设备壳体内，并且可以在多个频带上操作。 即使在频带不是谐波相关的情况下，该天线在多个频率工作频带内的每个频带内在相当大的带宽上提供高性能。

    Close proximity antenna measurement and tuning
    3.
    发明授权
    Close proximity antenna measurement and tuning 有权
    近距离天线测量和调谐

    公开(公告)号：US08391804B2

    公开(公告)日：2013-03-05

    申请号：US13051075

    申请日：2011-03-18

    申请人： Mark W. Duron ,  Rehan K. Jaffri ,  Richard T. Knadle

    发明人： Mark W. Duron ,  Rehan K. Jaffri ,  Richard T. Knadle

    IPC分类号： H04B1/04

    CPC分类号： H04B17/21 ,  H04B7/0837 ,  H04B7/0877 ,  H04B17/14 ,  H04B17/16 ,  H04B17/19 ,  H04B17/382

    摘要： A method and apparatus for providing close proximity antenna measurement and tuning, includes a first receive-only antenna, a second antenna operable in a transmit mode, a tuning circuit coupled to the first antenna, a transmitter coupled to the second antenna, a receiver coupled to the first antenna, the receiver operable to measure a power into the first antenna delivered by a signal from the second antenna driven by the transmitter, and a processor coupled to the tuning circuit, transmitter, and receiver, the processor operable to step changes in the tuning circuit until a substantially maximum power of the signal is measured by the receiver.

    摘要翻译： 一种用于提供近距离天线测量和调谐的方法和装置，包括第一接收天线，以发射模式操作的第二天线，耦合到第一天线的调谐电路，耦合到第二天线的发射机，耦合到第二天线的接收器 对于第一天线，接收机可操作以测量由由发射机驱动的第二天线的信号传送到第一天线中的功率，以及耦合到调谐电路，发射机和接收机的处理器，所述处理器可操作以逐步改变 直到信号的基本最大功率由接收器测量的调谐电路。

    CLOSE PROXIMITY ANTENNA MEASUREMENT AND TUNING
    4.
    发明申请
    CLOSE PROXIMITY ANTENNA MEASUREMENT AND TUNING 有权
    关闭近距离天线测量和调谐

    公开(公告)号：US20120238210A1

    公开(公告)日：2012-09-20

    申请号：US13051075

    申请日：2011-03-18

    申请人： Mark W. Duron ,  Rehan K. Jaffri ,  Richard T. Knadle

    发明人： Mark W. Duron ,  Rehan K. Jaffri ,  Richard T. Knadle

    IPC分类号： H04B7/00

    CPC分类号： H04B17/21 ,  H04B7/0837 ,  H04B7/0877 ,  H04B17/14 ,  H04B17/16 ,  H04B17/19 ,  H04B17/382

    摘要： A method and apparatus for providing close proximity antenna measurement and tuning, includes a first receive-only antenna, a second antenna operable in a transmit mode, a tuning circuit coupled to the first antenna, a transmitter coupled to the second antenna, a receiver coupled to the first antenna, the receiver operable to measure a power into the first antenna delivered by a signal from the second antenna driven by the transmitter, and a processor coupled to the tuning circuit, transmitter, and receiver, the processor operable to step changes in the tuning circuit until a substantially maximum power of the signal is measured by the receiver.

    摘要翻译： 一种用于提供近距离天线测量和调谐的方法和装置，包括第一接收天线，以发射模式操作的第二天线，耦合到第一天线的调谐电路，耦合到第二天线的发射机，耦合到第二天线的接收器 对于第一天线，接收机可操作以测量由由发射机驱动的第二天线的信号传送到第一天线中的功率，以及耦合到调谐电路，发射机和接收机的处理器，所述处理器可操作以逐步改变 直到信号的基本最大功率由接收器测量的调谐电路。

    FREQUENCY SELECTIVE SURFACE AIDS TO THE OPERATION OF RFID PRODUCTS
    5.
    发明申请
    FREQUENCY SELECTIVE SURFACE AIDS TO THE OPERATION OF RFID PRODUCTS 有权
    频率选择性表面艾滋病对RFID产品的运行

    公开(公告)号：US20100259365A1

    公开(公告)日：2010-10-14

    申请号：US12822678

    申请日：2010-06-24

    申请人： RICHARD T. KNADLE, JR. ,  MARK DURON

    发明人： RICHARD T. KNADLE, JR. ,  MARK DURON

    IPC分类号： H04Q5/22

    CPC分类号： G06K7/0008 ,  G06K7/10346 ,  G06K7/10435 ,  G06K17/0029 ,  H01Q1/2208 ,  H01Q15/0013

    摘要： The present invention is directed to systems that use frequency selective surfaces (FSS) to aid in the operation of radio frequency identification (RFID) devices and products. In one embodiment, a system for interrogating radio frequency identification (RFID) tags includes a conveyor belt and an RFID reader. The conveyor belt has a first surface and a second surface. The first surface is configured to receive an item to which an RFID tag is affixed and the second surface is configured to slide on a metal slide plate. The RFID reader is configured to transmit instructions embodied in a radio frequency (RF) signal to the RFID tag, wherein the metal slide plate is positioned between the RFID reader and the RFID tag and comprises a frequency selective surface that is substantially transparent to the RF signal.

    摘要翻译： 本发明涉及使用频率选择表面（FSS）来帮助射频识别（RFID）设备和产品的操作的系统。 在一个实施例中，用于询问射频识别（RFID）标签的系统包括传送带和RFID读取器。 传送带具有第一表面和第二表面。 第一表面被配置为接收固定有RFID标签的物品，并且第二表面被配置为在金属滑板上滑动。 RFID读取器被配置为将射频（RF）信号中包含的指令传送到RFID标签，其中金属滑板位于RFID读取器和RFID标签之间，并且包括对RF基本透明的频率选择表面 信号。

    SINGLE FREQUENCY LOW POWER RFID DEVICE
    6.
    发明申请
    SINGLE FREQUENCY LOW POWER RFID DEVICE 有权
    单频低功率RFID设备

    公开(公告)号：US20100001842A1

    公开(公告)日：2010-01-07

    申请号：US12498884

    申请日：2009-07-07

    申请人： Mark Duron ,  James Giebel ,  David Goren ,  Thomas Wulff ,  Richard T. Knadle, JR. ,  Christopher Brock

    发明人： Mark Duron ,  James Giebel ,  David Goren ,  Thomas Wulff ,  Richard T. Knadle, JR. ,  Christopher Brock

    IPC分类号： H04Q5/22

    CPC分类号： G06K7/0008

    摘要： Methods, systems, and apparatuses for a reader transceiver circuit are described. The reader transceiver circuit incorporates a frequency generator, such as a surface acoustic wave (SAW) oscillator. A reader incorporating the reader transceiver circuit is configured to read a tag at very close range, including while being in contact with the tag. The transceiver can be coupled to various host devices in a variety of ways, including being located in a RFID reader (e.g., mobile or fixed position), a computing device, a barcode reader, etc. The transceiver can be located in an RFID module that is attachable to a host device, can be configured in the host device, or can be configured to communicate with the host device over a distance. The RFID module may include one or more antennas, such as a first antenna configured to receive a magnetic field component of an electromagnetic wave and a second antenna configured to receive an electric field component of an electromagnetic wave. The RFID module may include a detector that is configured to determine if the RFID module is positioned in proximity to an object, such as a RFID tag. The detector may operate as a trigger for the RFID module, to enable or trigger a function of the RFID module.

    摘要翻译： 描述了用于读取器收发器电路的方法，系统和装置。 读取器收发器电路包括频率发生器，例如表面声波（SAW）振荡器。 包括读取器收发器电路的读取器被配置为在非常接近的范围内读取标签，包括在与标签接触的同时。 收发器可以以各种方式耦合到各种主机设备，包括位于RFID读取器（例如，移动或固定位置），计算设备，条形码读取器等中。收发器可以位于RFID模块中 可附接到主机设备，可以在主机设备中配置，或者可以被配置为在一定距离上与主机设备进行通信。 RFID模块可以包括一个或多个天线，诸如被配置为接收电磁波的磁场分量的第一天线和被配置为接收电磁波的电场分量的第二天线。 RFID模块可以包括被配置为确定RFID模块是否位于诸如RFID标签之类的物体附近的检测器。 检测器可以用作RFID​​模块的触发器，以实现或触发RFID模块的功能。

    Single frequency low power RFID device
    10.
    发明授权
    Single frequency low power RFID device 有权
    单频低功率RFID设备

    公开(公告)号：US07576657B2

    公开(公告)日：2009-08-18

    申请号：US11529733

    申请日：2006-09-29

    申请人： Mark Duron ,  James Giebel ,  David Goren ,  Thomas Wulff ,  Richard T. Knadle, Jr. ,  Christopher Brock

    发明人： Mark Duron ,  James Giebel ,  David Goren ,  Thomas Wulff ,  Richard T. Knadle, Jr. ,  Christopher Brock

    IPC分类号： G08B13/14

    CPC分类号： G06K7/0008

    摘要： Methods, systems, and apparatuses for a reader transceiver circuit are described. The reader transceiver circuit incorporates a frequency generator, such as a surface acoustic wave (SAW) oscillator. A reader incorporating the reader transceiver circuit is configured to read a tag at very close range, including while being in contact with the tag. The transceiver can be coupled to various host devices in a variety of ways, including being located in a RFID reader (e.g., mobile or fixed position), a computing device, a barcode reader, etc. The transceiver can be located in an RFID module that is attachable to a host device, can be configured in the host device, or can be configured to communicate with the host device over a distance. The RFID module may include one or more antennas, such as a first antenna configured to receive a magnetic field component of an electromagnetic wave and a second antenna configured to receive an electric field component of an electromagnetic wave. The RFID module may include a detector that is configured to determine if the RFID module is positioned in proximity to an object, such as a RFID tag. The detector may operate as a trigger for the RFID module, to enable or trigger a function of the RFID module.

    摘要翻译： 描述了用于读取器收发器电路的方法，系统和装置。 读取器收发器电路包括频率发生器，例如表面声波（SAW）振荡器。 包括读取器收发器电路的读取器被配置为在非常接近的范围内读取标签，包括在与标签接触的同时。 收发器可以以各种方式耦合到各种主机设备，包括位于RFID读取器（例如，移动或固定位置），计算设备，条形码读取器等中。收发器可以位于RFID模块中 可附接到主机设备，可以在主机设备中配置，或者可以被配置为在一定距离上与主机设备进行通信。 RFID模块可以包括一个或多个天线，诸如被配置为接收电磁波的磁场分量的第一天线和被配置为接收电磁波的电场分量的第二天线。 RFID模块可以包括被配置为确定RFID模块是否位于诸如RFID标签之类的物体附近的检测器。 检测器可以用作RFID​​模块的触发器，以实现或触发RFID模块的功能。