Antenna device for vehicle
AssigneeYokowo Co., Ltd.
InventorsNoritaka Terashita, Yusuke Yokota, Takashi Kaneko
Life of this patent
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Abstract
An antenna device that is attached to a vehicle, the antenna device including: a resin base; a metal base arranged on the resin base; a metal plate located above the resin base and attached to the metal base so as to be superimposed on a portion of the metal base; a substrate arranged on the metal base; an antenna connected to the substrate; and a plurality of fasteners which fix the metal base and the substrate, wherein one of the plurality of fasteners is positioned at a top-view superimposed area of the metal base and the metal plate.
Claims8
An antenna device that is attached to a vehicle, the antenna device comprising:
- a plate-shaped body made by resin;
- a metal plate arranged on the plate-shaped body;
- a substrate fixed to the metal plate;
- and
- an antenna connected to the substrate,
- wherein the metal plate is formed from at least one of sheet metal and conductive resin,
- the metal plate includes a portion which is different in a height between a lower surface of the plate-shaped body and a lower surface of the metal plate,
- the metal plate is placed to be opposed to a roof of the vehicle,
- a projection portion for fixing to the roof is provided on a surface of the metal plate facing the roof,
- the metal plate and the roof are electrically connected together via the projection portion, and
- a resonance frequency that occurs due to the roof and the metal plate that are electrically connected together via the projection portion is out of a communication frequency band of the antenna.
Dependencies are inferred from the claim text.