Title:
VEHICLE ANTENNA DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/058678
Kind Code:
A1
Abstract:
Provided is a vehicle antenna device which is capable of suppressing a reduction in a transmission and reception sensitivity of each of a plurality of antennas, and which is configured such that the antennas are in close proximity to one another, and such that at least a portion of a frequency band of radio waves that can be transmitted and received by each antenna is different. This vehicle antenna device, which is mounted in a vehicle, comprises a first antenna capable of transmitting and receiving radio waves in a first frequency band, and a second antenna which is in close proximity to the first antenna and which is capable of transmitting and receiving radio waves in a second frequency band including a frequency band higher than the first frequency band, wherein at least one of the first antenna and the second antenna is provided on a windowpane of the vehicle or in the vicinity of the windowpane, and the second antenna has a power supply unit that is connected to a high-pass filter.
Inventors:
SHOJI HIDEAKI (JP)
NODA JUN (JP)
TAKAHASHI TOMOHIRO (JP)
NODA JUN (JP)
TAKAHASHI TOMOHIRO (JP)
Application Number:
PCT/JP2022/037253
Publication Date:
April 13, 2023
Filing Date:
October 05, 2022
Export Citation:
Assignee:
AGC INC (JP)
International Classes:
H01Q1/32; H01Q1/22; H01Q1/52; H01Q9/04; H01Q13/08; H01Q21/28; H04B1/3822
Foreign References:
| JP2009253947A | 2009-10-29 | |||
| JPH11112373A | 1999-04-23 | |||
| JP2001320293A | 2001-11-16 |
Attorney, Agent or Firm:
T.S. PARTNERS et al. (JP)
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