Title:
ANTENNA DEVICE AND RFID TAG COMMUNICATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/220547
Kind Code:
A1
Abstract:
In the present invention, an antenna device (100) is a near-field communication antenna device constituted by a plurality of loop antennas being positioned, wherein the loop antennas each comprise a plurality of parallel circuits of capacitors and resistor elements, and loop-shaped conductors having a shape in which the loops are segmented. The segmented loop-shaped conductors are connected via the parallel circuits, and loops are formed from the plurality of loop-shaped conductors and the plurality of parallel circuits.
Inventors:
MURAYAMA HIROMI (JP)
KATO NOBORU (JP)
UEKI NORIYUKI (JP)
SAITO YOICHI (JP)
YASUTAKE MAKOTO (JP)
KATO NOBORU (JP)
UEKI NORIYUKI (JP)
SAITO YOICHI (JP)
YASUTAKE MAKOTO (JP)
Application Number:
PCT/JP2020/046520
Publication Date:
November 04, 2021
Filing Date:
December 14, 2020
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
H01Q3/24; G06K7/10; H01Q7/00; H01Q21/28
Foreign References:
| JP2005027296A | 2005-01-27 | |||
| JPH11282990A | 1999-10-15 | |||
| JP2017058917A | 2017-03-23 | |||
| JP2007174470A | 2007-07-05 | |||
| JPH09181520A | 1997-07-11 |
Attorney, Agent or Firm:
KAEDE PATENT ATTORNEYS' OFFICE (JP)
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