Title:
RF TAG
Document Type and Number:
WIPO Patent Application WO/2020/241044
Kind Code:
A1
Abstract:
The present invention improves the communication characteristics of an inlay by means of an auxiliary antenna while protecting the inlay against physical/mechanical external forces, shocks, etc. This RF tag is provided with: an inlay 10 at least provided with an IC chip 11 and a loop circuit 11a electrically coupled with the IC chip 11; a first auxiliary antenna 20 disposed so as to overlap the IC chip 11 and the loop circuit 11a of the inlay 10; a second auxiliary antenna 30 disposed to the inlay 10 so as not to overlap at least the IC chip 11; and dielectric layers 40, 50 disposed so as to overlap the inlay 10 and the second auxiliary antenna 30, wherein the first auxiliary antenna 20 is disposed on the side of the dielectric layer 40 opposite to the disposing surface of the inlay 10 so as not to overlap at least a part of the second auxiliary antenna 30, and the inlay 10 and the first and second auxiliary antennas 20, 30 are electromagnetically coupled.
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Inventors:
AKAMATSU SHINYA (JP)
KOGANEI KEISUKE (JP)
KURODA JUNJI (JP)
KOGANEI KEISUKE (JP)
KURODA JUNJI (JP)
Application Number:
PCT/JP2020/015206
Publication Date:
December 03, 2020
Filing Date:
April 02, 2020
Export Citation:
Assignee:
TOYO SEIKAN GROUP HOLDINGS LTD (JP)
International Classes:
G06K19/077; H01Q7/00; H01Q9/26; H01Q9/42; H01Q19/02
Domestic Patent References:
| WO2016170752A1 | 2016-10-27 |
Foreign References:
| JP2012048478A | 2012-03-08 | |||
| JP2008123196A | 2008-05-29 |
Attorney, Agent or Firm:
HEIWA INTERNATIONAL PATENT OFFICE (JP)
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