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    SIGNAL PROCESSING CIRCUIT AND ANTENNA APPARATUS
    4.
    发明公开
    SIGNAL PROCESSING CIRCUIT AND ANTENNA APPARATUS 审中-公开
    信号处理电路和天线装置

    公开(公告)号：EP3276746A1

    公开(公告)日：2018-01-31

    申请号：EP17190125.9

    申请日：2010-03-12

    申请人： Murata Manufacturing Co., Ltd.

    发明人： TANIGUCHI, Katsumi ,  KATO, Noboru

    IPC分类号： H01Q1/50 ,  G06K17/00 ,  H01Q7/00 ,  H04B5/02 ,  G06K7/00 ,  H01Q9/27 ,  H01Q11/08 ,  H04B5/00

    CPC分类号： H04B5/0062 ,  G06K7/0008 ,  H01Q7/00 ,  H01Q9/27 ,  H01Q11/08

    摘要： To form a signal processing circuit and an antenna apparatus that do not need a circuit for adjusting the resonant frequency of a resonant circuit or resonant-frequency adjustment work and that are downsized.
    An antenna coil (AL) and a capacitor (CO) form an antenna resonant circuit (AR). An impedance matching circuit composed of capacitors (C1, C2, C3), a first coil (L1), and a second coil (L2) is provided between the antenna resonant circuit (AR) and a wireless IC (11). The first coil (L1) and the second coil (L2) are magnetically coupled.

    摘要翻译： 以形成不需要用于调节谐振电路的谐振频率或谐振频率调节工作并且尺寸缩小的电路的信号处理电路和天线装置。 天线线圈（AL）和电容器（CO）形成天线谐振电路（AR）。 在天线谐振电路（AR）和无线IC（11）之间设置有由电容器（C1，C2，C3），第一线圈（L1）以及第二线圈（L2）构成的阻抗匹配电路。 第一线圈（L1）和第二线圈（L2）磁耦合。

    ANTENNA APPARATUS AND COMMUNICATION TERMINAL APPARATUS
    5.
    发明授权
    ANTENNA APPARATUS AND COMMUNICATION TERMINAL APPARATUS 有权
    天蝎座UND UND。。。。。。。。。。。。

    公开(公告)号：EP2573871B1

    公开(公告)日：2015-01-28

    申请号：EP11823506.8

    申请日：2011-09-05

    申请人： Murata Manufacturing Co., Ltd.

    发明人： MIURA, Teppei ,  SASAKI, Jun ,  KUBO, Hiroyuki ,  TANIGUCHI, Katsumi ,  KATO, Noboru ,  OZAWA, Masahiro ,  ISHINO, Satoshi

    IPC分类号： H01Q7/06 ,  G06K17/00 ,  G06K19/07 ,  G06K19/077 ,  G06K7/10 ,  H01Q1/24 ,  H01Q1/22 ,  H01Q7/08 ,  H01Q25/00 ,  H01Q21/29 ,  H01Q1/38 ,  H01Q7/00

    CPC分类号： H01Q7/08 ,  G06K7/10316 ,  G06K7/10336 ,  H01Q1/2208 ,  H01Q1/2216 ,  H01Q1/242 ,  H01Q1/243 ,  H01Q1/38 ,  H01Q7/00 ,  H01Q7/06 ,  H01Q21/293 ,  H01Q25/00

    摘要： An antenna device includes coil antennas (100A, 100B, 100C, 100D) each including a coil conductor wound around a winding axis and a planar conductor (11) including a surface and an edge end portion, the surface extending along the winding axis of the coil conductor, the edge end portion being adjacent to a coil opening of the coil conductor. A current flowing through the coil conductor induces a current in the planar conductor (11), this current produces a magnetic flux in a direction normal to the planar conductor (11), and thus the planar conductor acts as a booster antenna. The antenna device (201) has directivity in the direction normal to the planar conductor (11) because the magnetic flux produced by the coil antennas (100A, 100B, 100C, 100D) and that produced by the planar conductor (11) are combined. This enables the antenna device to occupy a small area while achieving a predetermined communication distance.

    摘要翻译： 天线装置包括线圈天线（100A，100B，100C，100D），每个线圈天线包括卷绕在绕组轴线上的线圈导体和包括表面和边缘端部的平面导体（11），该表面沿着 线圈导体，边缘端部与线圈导体的线圈开口相邻。 流过线圈导体的电流在平面导体（11）中感应出电流，该电流在垂直于平面导体（11）的方向上产生磁通，因此平面导体用作增强天线。 由于由线圈天线（100A，100B，100C，100D）产生的磁通和由平面导体（11）产生的磁通合并，所以天线装置（201）具有与平面导体（11）垂直的方向的方向性。 这使得天线装置在实现预定的通信距离的同时占据小的面积。

    ANTENNA APPARATUS AND WIRELESS IC DEVICE
    7.
    发明公开
    ANTENNA APPARATUS AND WIRELESS IC DEVICE 有权
    天蝎座的DRAHTLOSE IC-VORRICHTUNG

    公开(公告)号：EP2207240A1

    公开(公告)日：2010-07-14

    申请号：EP08865287.0

    申请日：2008-11-27

    申请人： MURATA MANUFACTURING CO., LTD.

    发明人： TANIGUCHI, Katsumi ,  SASAKI, Jun ,  KATO, Noboru

    IPC分类号： H01Q1/38 ,  G06K19/07 ,  G06K19/077 ,  H01Q7/00 ,  H01Q23/00

    CPC分类号： G06K19/0723 ,  G06K19/0726 ,  H01Q1/2208 ,  H01Q1/52 ,  H01Q7/00

    摘要： To constitute an antenna device in which characteristic fluctuations due to changes in the distance between a wireless IC device and a reader/writer are suppressed, and the wireless IC device which can perform communication with high reliability.
    In order to send/receive a wireless communication signal to/from an external device such as a reader/writer, an antenna resonant circuit (AR) is constituted by an antenna coil (La) and a capacitor (Ca), and an additional resonant circuit (LC1) is constituted by an inductor (L1) and a capacitor (C1). The additional resonant circuit (LC1) is connected to the antenna resonant circuit (AR), thereby constituting an antenna device (101). The antenna device (101) and a wireless IC (21) constitute a wireless IC device (201).

    摘要翻译： 构成能够抑制由无线IC器件与读写器之间的距离变化引起的特性波动的天线装置，以及能够以高可靠性进行通信的无线IC器件。 为了向诸如读取器/写入器的外部设备发送/接收无线通信信号，天线谐振电路（AR）由天线线圈（La）和电容器（Ca）构成，并且附加谐振 电路（LC1）由电感器（L1）和电容器（C1）构成。 附加谐振电路（LC1）与天线谐振电路（AR）连接，构成天线装置（101）。 天线装置（101）和无线IC（21）构成无线IC器件（201）。