公开(公告)号：US20240322418A1

公开(公告)日：2024-09-26

申请号：US18736493

申请日：2024-06-06

Applicant: AGC Inc.

Inventor： Tomohiro TAKAHASHI ,  Yuki KISHIMOTO

IPC: H01Q1/12 ,  B60J1/00 ,  H01Q1/32 ,  H01Q1/50 ,  H01Q9/04

CPC classification number: H01Q1/1271 ,  H01Q1/325 ,  H01Q1/50 ,  H01Q9/0407 ,  B60J1/001

Abstract: To suppress noise included in an antenna provided on a glass plate.
A vehicle antenna device comprising a glass plate for a vehicle,



a first antenna capable of receiving or transmitting radio waves of a first frequency band, provided on the glass plate, and
an electric circuit which attenuates a signal of a second frequency band including a frequency band higher than the first frequency band,
wherein the first antenna has a first feeding portion to be electrically connected to a signal line of a transmission line and a first element connected to the first feeding portion, and
the electric circuit is provided at least one of between the first feeding portion or the vicinity of the first feeding portion and a ground portion, and between the first feeding portion and the signal line.