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    Extended RFID tag
    1.
    发明申请
    Extended RFID tag 审中-公开
    扩展RFID标签

    公开(公告)号：US20090085750A1

    公开(公告)日：2009-04-02

    申请号：US11904625

    申请日：2007-09-27

    申请人： Michele A. Waldner ,  David P. Erickson ,  James P. McGee ,  Swagata R. Banerjee ,  Robert A. Sainati

    发明人： Michele A. Waldner ,  David P. Erickson ,  James P. McGee ,  Swagata R. Banerjee ,  Robert A. Sainati

    IPC分类号： G08B13/14

    CPC分类号： G06K19/07749 ,  B65D2203/10 ,  G06K19/07767 ,  G06K19/07786 ,  G08B13/2448 ,  H01Q1/2208 ,  H01Q9/065 ,  H01Q9/28

    摘要： The invention is directed to an extended radio-frequency identification (RFID) tag. The extended RFID tag includes an ultra-high frequency (UHF) RFID tag having a dipole antenna attached to a first surface of a substrate. The extended RFID tag further includes an antenna extension attached to the UHF RFID tag and overlapping at least a portion of the dipole antenna for electromagnetically coupling the antenna extension and the dipole antenna in operation. The extended RFID tag further includes an insulator positioned between the dipole antenna and the antenna extension to electrically isolate the dipole antenna from the antenna extension.

    摘要翻译： 本发明涉及一种扩展射频识别（RFID）标签。 扩展RFID标签包括具有附接到基板的第一表面的偶极天线的超高频（UHF）RFID标签。 扩展RFID标签还包括附接到UHF RFID标签的天线延伸部分，并且与偶极子天线的至少一部分重叠，用于在操作中电磁耦合天线延伸部分和偶极天线。 扩展RFID标签还包括位于偶极天线和天线延伸部之间的绝缘体，以将偶极天线与天线延伸部电隔离。

    RFID TAG ANTENNA WITH CAPACITIVELY OR INDUCTIVELY COUPLED TUNING COMPONENT
    4.
    发明申请
    RFID TAG ANTENNA WITH CAPACITIVELY OR INDUCTIVELY COUPLED TUNING COMPONENT 审中-公开
    RFID标签天线，具有电容或电感耦合调谐元件

    公开(公告)号：US20100123553A1

    公开(公告)日：2010-05-20

    申请号：US12621278

    申请日：2009-11-18

    申请人： Swagata R. Banerjee ,  Robert A. Sainati ,  Ronald D. Jesme

    发明人： Swagata R. Banerjee ,  Robert A. Sainati ,  Ronald D. Jesme

    IPC分类号： H04Q5/22 ,  H01Q9/16

    CPC分类号： H01Q9/16 ,  H01Q1/2208 ,  H01Q7/00 ,  H01Q9/30 ,  H01Q19/005

    摘要： This disclosure describes RFID tags designed to provide improved impedance matching capabilities. An RFID tag may include a radiating component and a tuning component located on different layers of the RFID tag. The radiating component and tuning component are located proximate to one another to provide a proximate coupling (e.g., an inductive and/or capacitive coupling). In one embodiment, at least a portion of the radiating component of a first layer overlaps at least a portion of the tuning component of a second layer, resulting in a proximate coupling. The tuning component may be used for tuning the antenna, e.g., matching an impedance of the radiating element and an IC chip electrically connected to the tuning component. Because the radiating element does not have to be designed to match impedances, the radiating element may be designed to provide better gain, polarization purity, larger radar cross section or other antenna parameters.

    摘要翻译： 本公开描述了设计用于提供改进的阻抗匹配能力的RFID标签。 RFID标签可以包括位于RFID标签的不同层上的辐射部件和调谐部件。 辐射部件和调谐部件彼此靠近设置以提供近端耦合（例如，电感和/或电容耦合）。 在一个实施例中，第一层的辐射部件的至少一部分与第二层的调谐部件的至少一部分重叠，导致紧密耦合。 调谐组件可用于调谐天线，例如匹配辐射元件的阻抗和与调谐组件电连接的IC芯片。 因为辐射元件不必被设计成匹配阻抗，所以辐射元件可以设计成提供更好的增益，极化纯度，更大的雷达截面或其他天线参数。

    Radio frequency identification (RFID) tag including a three-dimensional loop antenna
    5.
    发明授权
    Radio frequency identification (RFID) tag including a three-dimensional loop antenna 有权
    包括三维环形天线的射频识别（RFID）标签

    公开(公告)号：US07982616B2

    公开(公告)日：2011-07-19

    申请号：US12143562

    申请日：2008-06-20

    申请人： Swagata R. Banerjee ,  Robert A. Sainati ,  William C. Egbert ,  David K. Misemer

    发明人： Swagata R. Banerjee ,  Robert A. Sainati ,  William C. Egbert ,  David K. Misemer

    IPC分类号： G08B13/14

    CPC分类号： G06K19/07749 ,  G06K19/07771

    摘要： This disclosure describes a radio frequency identification (RFID) tag that includes a three-dimensional (3D) loop antenna. The 3D loop antenna includes a first conductive portion having a length and width that substantially exceed a thickness. The length and width of the first conductive portion substantially lie in a first plane. The 3D loop antenna includes a second conductive portion having a length and width that substantially exceed a thickness. The length and width of the second conductive portion substantially lie in a second plane that is substantially parallel to the first plane. An RFID circuit electrically connected to the loop antenna excites a current through the first and second conductive portions in a current loop that lies in a third plane that is not substantially parallel to the first and second planes. In some instances the third plane may be substantially perpendicular to the first and second planes.

    摘要翻译： 本公开描述了包括三维（3D）环形天线的射频识别（RFID）标签。 3D环形天线包括具有基本上超过厚度的长度和宽度的第一导电部分。 第一导电部分的长度和宽度基本上位于第一平面中。 3D环形天线包括具有基本上超过厚度的长度和宽度的第二导电部分。 第二导电部分的长度和宽度基本上位于基本上平行于第一平面的第二平面中。 电连接到环形天线的RFID电路在位于不基本上平行于第一和第二平面的第三平面中的电流回路中激发通过第一和第二导电部分的电流。 在一些情况下，第三平面可以基本上垂直于第一和第二平面。

    RADIO FREQUENCY IDENTIFICATION (RFID) TAG INCLUDING A THREE-DIMENSIONAL LOOP ANTENNA
    6.
    发明申请
    RADIO FREQUENCY IDENTIFICATION (RFID) TAG INCLUDING A THREE-DIMENSIONAL LOOP ANTENNA 有权

    公开(公告)号：US20090207026A1

    公开(公告)日：2009-08-20

    申请号：US12143562

    申请日：2008-06-20

    申请人： Swagata R. Banerjee ,  Robert A. Sainati ,  William C. Egbert ,  David K. Misemer

    发明人： Swagata R. Banerjee ,  Robert A. Sainati ,  William C. Egbert ,  David K. Misemer

    IPC分类号： G08B13/14

    CPC分类号： G06K19/07749 ,  G06K19/07771

    摘要： This disclosure describes a radio frequency identification (RFID) tag that includes a three-dimensional (3D) loop antenna. The 3D loop antenna includes a first conductive portion having a length and width that substantially exceed a thickness. The length and width of the first conductive portion substantially lie in a first plane. The 3D loop antenna includes a second conductive portion having a length and width that substantially exceed a thickness. The length and width of the second conductive portion substantially lie in a second plane that is substantially parallel to the first plane. An RFID circuit electrically connected to the loop antenna excites a current through the first and second conductive portions in a current loop that lies in a third plane that is not substantially parallel to the first and second planes. In some instances the third plane may be substantially perpendicular to the first and second planes.

    Radio frequency identification (RFID) tag including a three-dimensional loop antenna
    7.
    发明授权
    Radio frequency identification (RFID) tag including a three-dimensional loop antenna 有权
    包括三维环形天线的射频识别（RFID）标签

    公开(公告)号：US07847697B2

    公开(公告)日：2010-12-07

    申请号：US12143573

    申请日：2008-06-20

    申请人： Swagata R. Banerjee ,  Robert A. Sainati ,  William C. Egbert ,  David K. Misemer

    发明人： Swagata R. Banerjee ,  Robert A. Sainati ,  William C. Egbert ,  David K. Misemer

    IPC分类号： G08B13/14

    CPC分类号： G06K19/07749 ,  G06K19/07771

    摘要： This disclosure describes a radio frequency identification (RFID) tag that includes a three-dimensional (3D) loop antenna. The 3D loop antenna includes a first conductive portion having a length and width that substantially exceed a thickness. The length and width of the first conductive portion substantially lie in a first plane. The 3D loop antenna includes a second conductive portion having a length and width that substantially exceed a thickness. The length and width of the second conductive portion substantially lie in a second plane that is substantially parallel to the first plane. An RFID circuit electrically connected to the loop antenna excites a current through the first and second conductive portions in a current loop that lies in a third plane that is not substantially parallel to the first and second planes. In some instances the third plane may be substantially perpendicular to the first and second planes.

    摘要翻译： 本公开描述了包括三维（3D）环形天线的射频识别（RFID）标签。 3D环形天线包括具有基本上超过厚度的长度和宽度的第一导电部分。 第一导电部分的长度和宽度基本上位于第一平面中。 3D环形天线包括具有基本上超过厚度的长度和宽度的第二导电部分。 第二导电部分的长度和宽度基本上位于基本上平行于第一平面的第二平面中。 电连接到环形天线的RFID电路在位于不基本上平行于第一和第二平面的第三平面中的电流回路中激发通过第一和第二导电部分的电流。 在一些情况下，第三平面可以基本上垂直于第一和第二平面。

    RFID tag with a modified dipole antenna
    9.
    发明授权
    RFID tag with a modified dipole antenna 有权
    具有修改偶极天线的RFID标签

    公开(公告)号：US08717244B2

    公开(公告)日：2014-05-06

    申请号：US11870789

    申请日：2007-10-11

    申请人： Terrence H. Joyce, Jr. ,  Swagata R. Banerjee ,  William C. Egbert ,  Katherine A. Brown ,  Jaewon Kim ,  William A. Mittelstadt ,  Robert A. Sainati

    发明人： Terrence H. Joyce, Jr. ,  Swagata R. Banerjee ,  William C. Egbert ,  Katherine A. Brown ,  Jaewon Kim ,  William A. Mittelstadt ,  Robert A. Sainati

    IPC分类号： H01Q9/28

    CPC分类号： H01Q1/2225 ,  H01Q1/38 ,  H01Q9/24 ,  H01Q9/26

    摘要： In general, the disclosure describes an RFID tag designed such that the tag is both covert and not easily blocked from the interrogation signal by the hand or other body part of a person. In particular, the RFID tag is designed to have a long, narrow aspect that allows placement of the tag in locations on or in a book that are inconspicuous to the casual observer while extending beyond a hand of a person holding the book by the spine on or near a geometry centerline. The RFID tag includes a dipole segment and a loop segment coupled to the dipole segment. The loop segment of the modified dipole antenna provides the antenna with larger signal strength than conventional dipole antennas. Moreover, the conductive loop segment also provides improved impedance matching capabilities to allow the modified dipole antenna to match the impedance of an integrated circuit (IC) chip of the RFID tag.

    摘要翻译： 通常，本公开描述了RFID标签，其被设计成使得标签既隐蔽又不容易被人或其他身体部位的询问信号阻止。 特别地，RFID标签被设计成具有长而狭窄的方面，其允许将标签放置在书籍上或书籍中的位置上，这些位置对于偶然的观察者不显眼，同时延伸到通过脊柱拿着书的人的手 或几何中心线附近。 RFID标签包括耦合到偶极子段的偶极段和环段。 改进的偶极子天线的环段为天线提供比常规偶极天线更大的信号强度。 此外，导电环路段还提供改进的阻抗匹配能力，以允许修改的偶极天线匹配RFID标签的集成电路（IC）芯片的阻抗。