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    • 12. 发明授权
    • Antenna and wireless IC device
    • 天线和无线IC器件
    • US09444143B2
    • 2016-09-13
    • US13419454
    • 2012-03-14
    • Masato NomuraNoboru KatoYuya Dokai
    • Masato NomuraNoboru KatoYuya Dokai
    • H01Q11/12H01Q7/00H01Q1/38H01Q5/371
    • H01Q7/00H01Q1/38H01Q5/371
    • An antenna includes two feeding points, and includes a loop-shaped loop electrode and an auxiliary electrode electrically connected to the loop electrode and located at a position along the outer circumference of the loop electrode. The first end portion of the auxiliary electrode is electrically connected to the vicinity of one feeding point of the loop electrode. The second end portion of the auxiliary electrode is open. A resonant circuit is defined by the auxiliary electrode and the loop electrode to enhance the impedance of the antenna, compared with a case in which the antenna is configured using the simple loop electrode, and it is easy to achieve impedance matching with the wireless IC.
    • 天线包括两个馈电点,并且包括环形环电极和辅助电极,其电连接到环形电极并位于沿着环形电极的外圆周的位置处。 辅助电极的第一端部电连接到环形电极的一个馈电点附近。 辅助电极的第二端部是开放的。 与使用简单环形电极配置天线的情况相比,辅助电极和环形电极限定了谐振电路,以增强天线的阻抗,并且容易实现与无线IC的阻抗匹配。
    • 14. 发明授权
    • Wireless IC device
    • 无线IC设备
    • US08474725B2
    • 2013-07-02
    • US12510340
    • 2009-07-28
    • Noboru KatoYuya Dokai
    • Noboru KatoYuya Dokai
    • G06K19/06
    • H01Q7/00G06K19/0723G06K19/07749H01Q1/2208
    • A wireless IC device includes a wireless IC chip arranged to process a transmission/received signal, a matching inductance element and a planar electrode which are provided on the surface of a feeder circuit board formed by a flexible dielectric, and a loop-shaped radiation plate provided on the undersurface of the feeder circuit board. Both ends of the radiation plate are coupled to a resonance circuit including an inductance element by electromagnetic field coupling. The wireless IC chip is operated using a signal received by the radiation plate. A response signal transmitted from the wireless IC chip is externally transmitted from the radiation plate.
    • 无线IC器件包括布置成处理发送/接收信号的无线IC芯片,设置在由柔性电介质形成的馈电电路板的表面上的匹配电感元件和平面电极,以及环形辐射板 提供在馈电电路板的下表面上。 辐射板的两端通过电磁场耦合耦合到包括电感元件的谐振电路。 使用由辐射板接收的信号来操作无线IC芯片。 从无线IC芯片发送的响应信号从辐射板外部传输。
    • 17. 发明申请
    • WIRELESS IC DEVICE
    • 无线IC器件
    • US20090277966A1
    • 2009-11-12
    • US12510340
    • 2009-07-28
    • Noboru KatoYuya Dokai
    • Noboru KatoYuya Dokai
    • G06K19/06
    • H01Q7/00G06K19/0723G06K19/07749H01Q1/2208
    • A wireless IC device includes a wireless IC chip arranged to process a transmission/received signal, a matching inductance element and a planar electrode which are provided on the surface of a feeder circuit board formed by a flexible dielectric, and a loop-shaped radiation plate provided on the undersurface of the feeder circuit board. Both ends of the radiation plate are coupled to a resonance circuit including an inductance element by electromagnetic field coupling. The wireless IC chip is operated using a signal received by the radiation plate. A response signal transmitted from the wireless IC chip is externally transmitted from the radiation plate.
    • 无线IC器件包括布置成处理发送/接收信号的无线IC芯片,设置在由柔性电介质形成的馈电电路板的表面上的匹配电感元件和平面电极,以及环形辐射板 提供在馈电电路板的下表面上。 辐射板的两端通过电磁场耦合耦合到包括电感元件的谐振电路。 使用由辐射板接收的信号来操作无线IC芯片。 从无线IC芯片发送的响应信号从辐射板外部传输。
    • 20. 发明授权
    • Antenna and wireless communication device
    • 天线和无线通信设备
    • US09024837B2
    • 2015-05-05
    • US13613021
    • 2012-09-13
    • Yuya DokaiNoboru Kato
    • Yuya DokaiNoboru Kato
    • H01Q21/00H01Q1/22H01Q1/38H01Q7/00H01Q21/30H01Q9/16
    • H01Q1/2208H01Q1/2225H01Q1/38H01Q7/00H01Q9/16H01Q21/30
    • An antenna and a wireless communication device which are suitable for an RFID system and in which radiation characteristics are prevented from being changed as a result of impedance adjustment are configured such that the antenna includes a first loop electrode that has an external shape of a regular polygon or circle and that includes a pair of open ends, feeding portions arranged inside the first loop electrode, a second loop electrode connected to the feeding portions, and a coupling electrode that couples the first loop electrode and the second loop electrode to each other. The wireless communication device is obtained by coupling the wireless communication element which processes a high-frequency signal to the feeding portions.
    • 适用于RFID系统并且其中防止辐射特性作为阻抗调整的结果的天线和无线通信设备被配置为使得天线包括具有正多边形的外部形状的第一环形电极 或圆形,并且包括一对开口端,布置在第一环形电极内部的馈电部分,连接到馈电部分的第二环形电极,以及将第一环形电极和第二环形电极彼此耦合的耦合电极。 通过将处理高频信号的无线通信元件耦合到馈送部分来获得无线通信设备。