发明公开
EP2385581A1 MAGNETIC ANTENNA, RF TAG, AND SUBSTRATE HAVING THE RF TAG MOUNTED THEREON
审中-公开
MAGNETANTENNE，RF-ETIKETT UND SUBSTRAT MIT DARAUF MONTIERTEM RF-ETIKETT
- 专利标题： MAGNETIC ANTENNA, RF TAG, AND SUBSTRATE HAVING THE RF TAG MOUNTED THEREON
- 专利标题（中）： MAGNETANTENNE，RF-ETIKETT UND SUBSTRAT MIT DARAUF MONTIERTEM RF-ETIKETT
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申请号： EP10735878.0申请日： 2010-01-28
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公开(公告)号： EP2385581A1公开(公告)日： 2011-11-09
- 发明人: KOUJIMA, Jun , OHMAE, Satoshi , KIMURA, Tetsuya , SATO, Yoshiro
- 申请人： Toda Kogyo Corporation
- 申请人地址： 1-4, Meijishinkai Otake-shi Hiroshima 739-0652 JP
- 专利权人： Toda Kogyo Corporation
- 当前专利权人： Toda Kogyo Corporation
- 当前专利权人地址： 1-4, Meijishinkai Otake-shi Hiroshima 739-0652 JP
- 代理机构： Woods, Geoffrey Corlett
- 优先权： JP2009020584 20090130
- 国际公布： WO2010087413 20100805
- 主分类号： H01Q7/06
- IPC分类号： H01Q7/06 ; G06K19/07 ; H04B5/02
摘要：
The present invention relates to an RF tag comprising a magnetic antenna for transmitting and receiving information using an electromagnetic induction method, and an IC mounted to the magnetic antenna, wherein the magnetic antenna comprises a magnetic core and a plurality of coils formed on the magnetic core; the coils each have an inductance L 1 satisfying the specific relational formula, and are connected in parallel to each other in an electric circuit and disposed in series on the magnetic core; and a combined inductance L 0 of the magnetic antenna satisfies the specific relational formula. The RF tag of the present invention is used as a magnetic antenna for information communication using a magnetic field component which is capable of satisfying both reduction in size and improvement in communication sensitivity.
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