VEHICLE ANTENNA DEVICE

WIPO Patent Application WO/2023/054286

A1

[Problem] To prevent worsening of antenna gain in a prescribed direction of a communication antenna which is provided to a vehicle window glass so as to be spaced apart in a vehicle width direction from an electronic device provided to a center section in the vehicle width direction at or near an upper portion of the vehicle window glass. [Solution] The present invention comprises: a vehicle window glass 28, 34 that can be attached to a vehicle 10 so as to constitute a windshield and/or a rear glass; an electronic device 32 that is provided near a center section in the vehicle width direction at or near an upper portion in a vehicle up-down direction of the vehicle window glass; and an antenna 50 that is attached to the upper portion of the vehicle window glass so that a normal line of a radiation plane passes through a principal surface. A central position CP2 in the vehicle width direction of the antenna is spaced apart from a reference position CP1 which is at the center in the vehicle width direction of the electronic device. The radiation plane is tilted so that, when viewed in the vehicle up-down direction, a second end 50E2, which is the end on the side opposite the reference position side of the radiation plane, is positioned more toward a lower edge side of the vehicle window glass than a first end 50E1, which is the end on the reference position side.

SHOJI HIDEAKI (JP)
NOBUOKA KIYOSHI (JP)
TAKEUCHI SHOICHI (JP)
SAYAMA TOSHIKI (JP)
KATO YUSUKE (JP)

PCT/JP2022/035786

April 06, 2023

September 26, 2022

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AGC INC (JP)

H01Q1/32; H01Q1/22

WO2021125209A1	2021-06-24
WO2019208453A1	2019-10-31

JP2009147557A	2009-07-02
JP2012505115A	2012-03-01

TAIYO, NAKAJIMA & KATO (JP)

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