Title:
ONBOARD ANTENNA DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/004612
Kind Code:
A1
Abstract:
Provided is an onboard antenna device that makes it possible to suppress interference in situations in which a plurality of antennas that receive signals of different frequency bands are close to each other. The present invention has, on an antenna base part 30 that can be attached to a vehicle, a patch antenna 10 and a capacitive loading element 22 that are separated from each other. The capacitive loading element 22: is a portion of an antenna that can receive a different working frequency band than the patch antenna 10; and has a three-dimensional shape in which a pair of linear conductors that turn repeatedly in a prescribed direction are connected by a linear connecting conductor that extends in the width direction of the antenna base part 30. The length of bent-back portions of the linear conductors of the capacitive loading element 22 is a non-resonant length for the patch antenna 10.
Inventors:
YOKOTA YUSUKE (JP)
MOCHIZUKI TAIKI (JP)
MOCHIZUKI TAIKI (JP)
Application Number:
PCT/JP2019/025780
Publication Date:
January 02, 2020
Filing Date:
June 28, 2019
Export Citation:
Assignee:
YOKOWO SEISAKUSHO KK (JP)
International Classes:
H01Q1/32; H01Q5/364; H01Q9/42; H01Q13/08; H01Q21/28
Domestic Patent References:
| WO2018105235A1 | 2018-06-14 | |||
| WO2009004451A2 | 2009-01-08 |
Attorney, Agent or Firm:
SUZUKI Seigoh (JP)
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