ANTENNA FOR RF TAG, AND RF TAG

WIPO Patent Application WO/2019/106772

A1

[Problem] To provide an antenna for an RF tag and an RF tag with which a communication distance between reading devices can be extended. [Solution] This antenna for an RF tag is provided with: an insulation member 40; a waveguide element 20 provided on one side of the insulation member 40; a waveguide element 30 disposed so as to face the waveguide element 20 and provided on the other side of the insulation member 40; a power supply unit 50 having one end electrically connected to the waveguide element 30; and a short-circuit unit 60 having one end electrically connected to the wave guide element 20 and the other end electrically connected to the waveguide element 30, wherein the permittivity of an insulation region A1 on the waveguide element 20 side among regions sandwiched between the waveguide element 20 and the waveguide element 30 is different from the permittivity of an insulation region A2 on the waveguide element 30 side among said regions.

KANAOKA HISAO (JP)
SUGIMURA SHIRO (JP)
NIWATA TATSUJI (JP)
FUJII MASAKAZU (JP)

PCT/JP2017/042916

June 06, 2019

November 29, 2017

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PHOENIX SOLUTION CO LTD (JP)

H01Q1/38; H01Q9/04; H01Q13/08

WO2016129542A1	2016-08-18
WO2013137404A1	2013-09-19

JP2004228940A	2004-08-12
JP2001156529A	2001-06-08
JPH03192804A	1991-08-22
JP2012253700A	2012-12-20
JP2003298345A	2003-10-17
JP2011130239A	2011-06-30
JP2010081098A	2010-04-08
JP2014103515A	2014-06-05
JP2010154207A	2010-07-08
JP2011211748A	2011-10-20

CREIA IP ATTORNEYS (JP)

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