PIFA and RFID tag using the same
    1.
    发明申请

    公开(公告)号:US20060145927A1

    公开(公告)日:2006-07-06

    申请号:US11297687

    申请日:2005-12-07

    IPC分类号: H01Q1/38

    摘要: Provided is a planar inverted-F antenna (PIFA) which has a Co-Planar Waveguide (CPW) feeding structure and can be attached to a metal surface, and an RFID tag using the same. The PIFA includes a radiation patch layer; a Co-Planar Waveguide (CPW) feeding layer; a feeding probe; and a short-circuit. The CPW feeding layer includes a feeding means and a ground surface. The feeding probe electrically connects the radiation patch layer and the feeding means and provides a Radio Frequency (RF) signal to be radiated to the radiation patch layer. The short-circuiting means short-circuits the radiation patch layer and the ground surface through the dielectric layer. The PIFA can be applied to a passive RFID tag. Impedance matching between the antenna and the RFID chip is possible. Also, the PIFA can easily control resonant frequency of the antenna and reactance.

    PIFA and RFID tag using the same
    2.
    发明授权
    PIFA and RFID tag using the same 有权
    PIFA和RFID标签使用相同

    公开(公告)号:US07504998B2

    公开(公告)日:2009-03-17

    申请号:US11297687

    申请日:2005-12-07

    IPC分类号: H01Q1/38

    摘要: Provided is a planar inverted-F antenna (PIFA) which has a Co-Planar Waveguide (CPW) feeding structure and can be attached to a metal surface, and an RFID tag using the same. The PIFA includes a radiation patch layer; a Co-Planar Waveguide (CPW) feeding layer; a feeding probe; and a short-circuit. The CPW feeding layer includes a feeding means and a ground surface. The feeding probe electrically connects the radiation patch layer and the feeding means and provides a Radio Frequency (RF) signal to be radiated to the radiation patch layer. The short-circuiting means short-circuits the radiation patch layer and the ground surface through the dielectric layer. The PIFA can be applied to a passive RFID tag. Impedance matching between the antenna and the RFID chip is possible. Also, the PIFA can easily control resonant frequency of the antenna and reactance.

    摘要翻译: 提供了具有共平面波导(CPW)馈送结构并且可以附着到金属表面的平面倒F天线(PIFA)和使用其的RFID标签。 PIFA包括辐射贴片层; 共平面波导(CPW)馈电层; 喂食探针; 和短路。 CPW馈送层包括馈送装置和接地表面。 馈送探针将辐射贴片层和馈送装置电连接并提供要辐射到辐射贴片层的射频(RF)信号。 短路装置通过介电层使辐射贴片层和地表面短路。 PIFA可应用于无源RFID标签。 天线和RFID芯片之间的阻抗匹配是可能的。 此外,PIFA可以轻松控制天线的谐振频率和电抗。

    Antenna using inductively coupled feeding method, RFID tag using the same and antenna impedance matching method thereof
    3.
    发明授权
    Antenna using inductively coupled feeding method, RFID tag using the same and antenna impedance matching method thereof 有权
    使用电感耦合馈电方法的天线,使用其的RFID标签和天线阻抗匹配方法

    公开(公告)号:US07545328B2

    公开(公告)日:2009-06-09

    申请号:US11297256

    申请日:2005-12-07

    IPC分类号: H01Q1/38

    摘要: Provided are an antenna using an inductively coupled feeding method, a Radio Frequency Identification (RFID) tag thereof, and an antenna impedance matching method thereof. The antenna includes a resonator for determining a resonance frequency of the antenna and a feeder for providing an RF signal to an element connected to the antenna. An RFID tag includes an antenna which receives an RF signal from the RFID reader, an RF front-end which rectifies and detects the RF signal, and a signal processor which is connected to the RF front-end. Particularly, the antenna includes a resonator for determining a resonance frequency of an antenna and a feeder for providing the RF signal to the RF front-end, wherein mutual inductive coupling between the resonator and the feeder is performed.

    摘要翻译: 提供了使用电感耦合馈电方法的天线,其射频识别(RFID)标签及其天线阻抗匹配方法。 天线包括用于确定天线的谐振频率的谐振器和用于向连接到天线的元件提供RF信号的馈线。 RFID标签包括从RFID读取器接收RF信号的天线,对RF信号进行整流和检测的RF前端,以及连接到RF前端的信号处理器。 特别地,天线包括用于确定天线的谐振频率的谐振器和用于将RF信号提供给RF前端的馈线,其中执行谐振器和馈线之间的互感耦合。

    Antenna using inductively coupled feeding method, RFID tag using the same and antenna impedence matching method thereof
    4.
    发明申请
    Antenna using inductively coupled feeding method, RFID tag using the same and antenna impedence matching method thereof 有权
    使用电感耦合馈电方法的天线,使用其的RFID标签和天线阻抗匹配方法

    公开(公告)号:US20060158380A1

    公开(公告)日:2006-07-20

    申请号:US11297256

    申请日:2005-12-07

    IPC分类号: H01Q7/00 G08B13/14

    摘要: Provided are an antenna using an inductively coupled feeding method, a Radio Frequency Identification (RFID) tag thereof, and an antenna impedance matching method thereof. The antenna includes a resonator for determining a resonance frequency of the antenna and a feeder for providing an RF signal to an element connected to the antenna. An RFID tag includes an antenna which receives an RF signal from the RFID reader, an RF front-end which rectifies and detects the RF signal, and a signal processor which is connected to the RF front-end. Particularly, the antenna includes a resonator for determining a resonance frequency of an antenna and a feeder for providing the RF signal to the RF front-end, wherein mutual inductive coupling between the resonator and the feeder is performed.

    摘要翻译: 提供了使用电感耦合馈电方法的天线,其射频识别(RFID)标签及其天线阻抗匹配方法。 天线包括用于确定天线的谐振频率的谐振器和用于向连接到天线的元件提供RF信号的馈线。 RFID标签包括从RFID读取器接收RF信号的天线,对RF信号进行整流和检测的RF前端,以及连接到RF前端的信号处理器。 特别地,天线包括用于确定天线的谐振频率的谐振器和用于将RF信号提供给RF前端的馈线,其中执行谐振器和馈线之间的互感耦合。

    Electrical loop antenna with unidirectional and uniform current radiation source
    8.
    发明授权
    Electrical loop antenna with unidirectional and uniform current radiation source 失效
    具有单向均匀电流辐射源的电气环形天线

    公开(公告)号:US07505008B2

    公开(公告)日:2009-03-17

    申请号:US11526374

    申请日:2006-09-25

    IPC分类号: H01Q11/12

    CPC分类号: H01Q11/18 H01Q9/36 H01Q9/40

    摘要: Provided is an antenna for a Radio Frequency Identification (RFID) reader using an electrical loop. It includes an upper metal plate which functions as a radiator; a lower metal plate which is disposed apart from the upper metal plate by a predetermined distance and functions as a radiator; a ground plate disposed apart from the lower metal plate by a predetermined distance; and a feeding probe disposed at the center of the upper and lower metal plates. The antenna can perform radiation parallel to the earth's surface including other directions. Therefore, it is suitable for an RFID reader which recognizes an RFID tag attached in parallel to the earth's surface. The electrical loop antenna can control impedance matching, resonance frequency, antenna gain, and radiation pattern according to the distance between metal plates, size of the metal plates, thickness of a feeding probe, and how the metal plates are arranged.

    摘要翻译: 提供了一种使用电气回路的射频识别(RFID)读取器的天线。 它包括用作散热器的上金属板; 下金属板,其与上金属板隔开预定距离设置并用作散热器; 接地板,与所述下金属板隔开预定距离; 以及设置在上下金属板的中心的供给探针。 天线可以执行与地球表面平行的辐射,包括其他方向。 因此,它适用于识别与地球表面平行附接的RFID标签的RFID读取器。 电气环路天线可以根据金属板之间的距离,金属板的尺寸,馈电探针的厚度以及金属板的布置方式,来控制阻抗匹配,谐振频率,天线增益和辐射图。

    Method and apparatus for sharing portable terminal in CDMA system and mobile RFID system
    9.
    发明申请
    Method and apparatus for sharing portable terminal in CDMA system and mobile RFID system 失效
    用于在CDMA系统和移动RFID系统中共享便携式终端的方法和装置

    公开(公告)号:US20070120679A1

    公开(公告)日:2007-05-31

    申请号:US11600605

    申请日:2006-11-16

    IPC分类号: G08B13/14 H05K11/00

    CPC分类号: G06K7/0008

    摘要: Provided are a method and apparatus for sharing a portable terminal in a Code Division Multiple Access (CDMA) and a mobile Radio Frequency Identification (RFID) system. The portable terminal includes: a CDMA mobile station system for performing CDMA communication; a mobile RFID system for performing a passive RFID reader function; a switching unit for switching an antenna to any one between the CDMA mobile station system and the mobile RFID system; and a control unit for controlling the switching unit to connect the antenna to the CDMA mobile station system when the portable terminal transmits/receives a signal to/from the base station, or connect the antenna to the mobile RFID system when the portable terminal transmits/receives a signal to/from an RFID tag.

    摘要翻译: 提供了一种用于在码分多址(CDMA)和移动射频识别(RFID)系统中共享便携式终端的方法和装置。 便携式终端包括:用于执行CDMA通信的CDMA移动站系统; 用于执行无源RFID读取器功能的移动RFID系统; 用于将天线切换到CDMA移动站系统和移动RFID系统之间的任何一个的切换单元; 以及控制单元,用于当便携式终端向/从基站发送/接收信号时控制切换单元将天线连接到CDMA移动站系统,或者当便携式终端发送/接收来自基站的天线时将天线连接到移动RFID系统, 从RFID标签接收信号。

    Electrical loop antenna with unidirectional and uniform current radiation source
    10.
    发明申请
    Electrical loop antenna with unidirectional and uniform current radiation source 失效
    具有单向均匀电流辐射源的电气环形天线

    公开(公告)号:US20070080879A1

    公开(公告)日:2007-04-12

    申请号:US11526374

    申请日:2006-09-25

    IPC分类号: H01Q11/12

    CPC分类号: H01Q11/18 H01Q9/36 H01Q9/40

    摘要: Provided is an antenna for a Radio Frequency Identification (RFID) reader using an electrical loop. It includes an upper metal plate which functions as a radiator; a lower metal plate which is disposed apart from the upper metal plate by a predetermined distance and functions as a radiator; a ground plate disposed apart from the lower metal plate by a predetermined distance; and a feeding probe disposed at the center of the upper and lower metal plates. The antenna can perform radiation parallel to the earth's surface including other directions. Therefore, it is suitable for an RFID reader which recognizes an RFID tag attached in parallel to the earth's surface. The electrical loop antenna can control impedance matching, resonance frequency, antenna gain, and radiation pattern according to the distance between metal plates, size of the metal plates, thickness of a feeding probe, and how the metal plates are arranged.

    摘要翻译: 提供了一种使用电气回路的射频识别(RFID)读取器的天线。 它包括用作散热器的上金属板; 下金属板,其与上金属板隔开预定距离设置并用作散热器; 接地板,与所述下金属板隔开预定距离; 以及设置在上下金属板的中心的供给探针。 天线可以执行与地球表面平行的辐射,包括其他方向。 因此,它适用于识别与地球表面平行附接的RFID标签的RFID读取器。 电气环路天线可以根据金属板之间的距离,金属板的尺寸,馈电探针的厚度以及金属板的布置方式,来控制阻抗匹配,谐振频率,天线增益和辐射图。