Wireless IC device and electronic apparatus

    公开(公告)号:US07905421B2

    公开(公告)日:2011-03-15

    申请号:US12503188

    申请日:2009-07-15

    IPC分类号: G06K19/06

    摘要: A wireless IC device that is miniaturized, allows simple and low-cost mounting of a wireless IC, and eliminates the possibility of damage occurring to the wireless IC due to static electricity, and an electronic apparatus equipped with the wireless IC device, includes a wireless IC chip that processes transmission and reception signals, and a feeder circuit substrate that includes a resonant circuit having an inductance element. Feeder electrodes are provided on a surface of the feeder circuit substrate and are electromagnetically coupled to the resonant circuit. The feeder electrodes and are electromagnetically coupled to radiation plates and provided for a printed wiring board. The wireless IC chip is activated by a signal received by the radiation plates and a response signal from the wireless IC chip is radiated outward from the radiation plates.

    Wireless IC device and electronic device
    8.
    发明授权
    Wireless IC device and electronic device 有权
    无线IC器件和电子设备

    公开(公告)号:US07830311B2

    公开(公告)日:2010-11-09

    申请号:US11851661

    申请日:2007-09-07

    IPC分类号: H01Q1/38

    摘要: A wireless IC device includes a wireless IC chip for processing a transmission/reception signal, a printed wiring circuit board on which the wireless IC chip is mounted, a ground electrode disposed on the circuit board, and a substantially loop-shaped electrode that is electrically conducted to the wireless IC chip and disposed on the circuit board so as to be coupled to the ground electrode by an electromagnetic field. The ground electrode is coupled to the wireless IC chip via the substantially loop-shaped electrode to transmit/receive a radio frequency signal. A feeder circuit board including a resonant circuit and/or a matching circuit may be interposed between the wireless IC chip and the substantially loop-shaped electrode.

    摘要翻译: 无线IC器件包括用于处理发送/接收信号的无线IC芯片,安装无线IC芯片的印刷布线电路板,布置在电路板上的接地电极和电气基本上环形的电极 传导到无线IC芯片并且设置在电路板上,以便通过电磁场耦合到接地电极。 接地电极通过大致环形的电极耦合到无线IC芯片,以发射/接收射频信号。 包括谐振电路和/或匹配电路的馈电电路板可以插在无线IC芯片和基本上环形的电极之间。

    Voltage controlled oscillator with a resonator common to a resonance
circuit and an oscillation circuit and a capacitor
    9.
    发明授权
    Voltage controlled oscillator with a resonator common to a resonance circuit and an oscillation circuit and a capacitor 有权
    具有谐振电路和振荡电路以及电容器共用的谐振器的压控振荡器

    公开(公告)号:US6104255A

    公开(公告)日:2000-08-15

    申请号:US131667

    申请日:1998-08-10

    IPC分类号: H03B5/18

    CPC分类号: H03B5/1847

    摘要: A voltage controlled oscillation circuit includes a resonance circuit and an oscillation circuit. The oscillation circuit includes a capacitor, a variable capacitance diode, and a resonator composed of a strip line one end of which is grounded. The oscillation circuit includes an oscillation transistor, bias resistors, and, a Colpitts capacitor, a harmonic bypass capacitor, and a chip capacitor, one end of which is connected in series with a resistor and the other end of which is grounded. A node between the bias resistor and the chip capacitor connects the resonator composed of a strip line provided within the resonance circuit via a connection line, whereby the emitter of the oscillation transistor provided within the resonance circuit is grounded via the bias resistor and the resonator. In addition, a parallel resonance circuit is composed of the resonator and the chip capacitor.

    摘要翻译: 压控振荡电路包括谐振电路和振荡电路。 振荡电路包括电容器,可变电容二极管和由带状线一端接地的谐振器。 振荡电路包括振荡晶体管,偏置电阻器,Colpitts电容器,谐波旁路电容器和芯片电容器,其一端与电阻器串联连接,另一端接地。 偏置电阻与片式电容器之间的节点通过连接线将由谐振电路内设置的带状线组成的谐振器连接起来,由此设置在谐振电路内的振荡晶体管的发射极通过偏置电阻和谐振器接地。 此外,并联谐振电路由谐振器和片式电容器组成。