RFID TAG AND RFID SYSTEM

专利名称：RFID TAG AND RFID SYSTEM发明人：KAI, MANABU申请号：EP13890425申请日：20130731公开号：EP3029610A4公开日：20160720

摘要：To provide an RFID tag (100) capable of performing communications stablyregardless of the RFID tag being attached to a metallic member or being attached to anon-metallic member. The RFID tag (100) includes a base part (101) made of dielectricmaterial and having plate-like shape, a loop antenna (140, 240) around the base part(101) including a first antenna element (110) and a second element (120), and a loop-length shorter than a wavelength of a resonant frequency, and an IC chip (130) placed ata first surface side of the base part (101). The IC chip is connected between a firstterminal (113) disposed on a first end of the first antenna element (110) and a secondterminal (123A) disposed on a first end of the second antenna element (120). The loopantenna (140, 240) includes an overlapping part (160) at a second surface side of the basepart (101), and a capacitance of the overlapping part is adjusted such that a differencebetween an imaginary component of a first synthetic impedance and an imaginarycomponent of a second synthetic impedance is less than or equal to a predeterminedvalue.

申请人：FUJITSU LIMITED

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