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    • 9. 发明授权
    • Sensing radio frequency identification device with reactive strap attachment
    • 感应无线电频率识别装置,具有反作用力带附件
    • US09412061B2
    • 2016-08-09
    • US12856229
    • 2010-08-13
    • Ian J. Forster
    • Ian J. Forster
    • H04Q5/22G06K19/077H04Q9/00
    • G06K19/07749G06K19/07752G06K19/07756H04Q9/00H04Q2209/47
    • A sensing radio frequency identification device with a strap that is reactively attached to an antenna by a sensing material is provided. In one embodiment, the RFID device includes an antenna, an interposer (or strap), an integrated circuit coupled to the interposer, and a sensing material disposed between the interposer and the antenna. As the relative permittivity of the sensing material changes in response to its exposure to an environmental condition, the reactive coupling between the interposer and the antenna likewise changes thereby causing changes in one or more parameters of communication such as frequency. The sensing material 70 may be a dielectric material selected to have a relative permittivity (i.e., dielectric constant) that varies based on exposure to one or more environmental conditions such as, for example, temperature (i.e., hot or cold), humidity, chemical, biological entity, nuclear, physical, pressure, light, liquid, nuclear and/or other condition.
    • 提供一种具有通过感测材料反应地附接到天线的条带的感测射频识别装置。 在一个实施例中,RFID设备包括天线,插入器(或带),耦合到插入器的集成电路以及设置在插入器和天线之间的感测材料。 随着感测材料的相对介电常数随其暴露于环境条件而改变,插入器和天线之间的反应耦合也同样改变,从而引起诸如频率的一个或多个通信参数的变化。 感测材料70可以是被选择为具有相对介电常数(即,介电常数)的介电材料,其基于暴露于一个或多个环境条件(例如,温度(即,热或冷)),湿度,化学品 生物实体,核,物理,压力,光,液,核和/或其他条件。