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    • 9. 发明申请
    • RFID TAG, RFID SYSTEM, AND PACKAGE INCLUDING RFID TAG
    • RFID标签,RFID系统和包含RFID标签的包装
    • US20140291390A1
    • 2014-10-02
    • US14356536
    • 2012-12-07
    • Tsutomu Kawase
    • Tsutomu Kawase
    • G06K19/077
    • G06K19/07771A61J1/03A61J2205/60G06K19/07758G06K19/07773H01Q1/2225H01Q13/10
    • Disclosed is an RFID tag to be attached to a metal member including a slit, the RFID tag including conductive members attached to a surface of the metal member at corresponding sides of the slit in a width direction of the slit through an isolator; and an IC chip that receives power through the conductive members. When a frequency of radio waves is f, the power induced between the sides the slit is Wa, voltage induced between the sides of the slit is V, an area of each of the conductive members is S, thickness of the isolator is d, a dielectric constant of the isolator is ∈r, a dielectric constant of vacuum is ∈0, and a minimum value of the power required for the IC chip to operate is Wmin, an inequality Wmin≦Wa−4πf·S·∈0·∈r·V2/d is satisfied.
    • 公开了一种要附着到包括狭缝的金属构件的RFID标签,RFID标签包括通过隔离器在狭缝的宽度方向上在狭缝的相应侧附着到金属构件的表面的导电构件; 以及通过导电构件接收电力的IC芯片。 当无线电波频率为f时,狭缝侧面之间产生的功率为Wa,狭缝侧面感应电压为V,导电部件的面积为S,隔离器的厚度为d,a 隔离器的介电常数为∈r,真空介电常数为∈0,IC芯片工作所需功率的最小值为Wmin,不等式Wmin≦̸ Wa-4&pgr; f·S·∈0· ∈r·V2 / d满足。