Title:
VEHICLE ANTENNA DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/042788
Kind Code:
A1
Abstract:
A vehicle antenna device according to the present invention comprises: a dielectric substrate; an antenna that is disposed on a first main surface side of the dielectric substrate; an antenna conductor that is connected to the antenna and disposed on the first main surface side; a conductive film that is disposed on the dielectric substrate on a second main surface side on the reverse side from the first main surface side and has a porous region in the interior thereof in a plan view of the dielectric substrate; a signal electrode that is disposed further inward on the second main surface side than the outer edge of the porous region in a plan view of the dielectric substrate and is electrically connected to the antenna conductor; and a ground electrode that is electrically connected to the conductive film in a plan view of the dielectric substrate.
Inventors:
FUNATSU TOSHIFUMI (JP)
OGOU SUGURU (JP)
OGOU SUGURU (JP)
Application Number:
PCT/JP2022/034041
Publication Date:
March 23, 2023
Filing Date:
September 12, 2022
Export Citation:
Assignee:
AGC INC (JP)
International Classes:
H01Q1/22; B60J1/00; C03C27/12; H01P5/02
Foreign References:
| JPH07240615A | 1995-09-12 | |||
| US5264064A | 1993-11-23 |
Attorney, Agent or Firm:
SHIGA INTERNATIONAL PATENT OFFICE (JP)
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