Title:
ANTENNA DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/230301
Kind Code:
A1
Abstract:
This antenna device that is used on a mobile body is provided with: a vertical polarized antenna (40) that has a higher directional gain at low elevation angles than that at high elevation angles; a horizontal polarized antenna (30) that is capable of communicating with a base station when the base station is situated at a low elevation angle, that has a higher directional gain than the vertical polarized antenna (40), and that transmits and receives an electric wave having an electric field the oscillation direction of which intersects with that of an electric wave transmitted and received by the vertical polarized antenna (40); and a zenith antenna (50) that has a higher directional gain at high elevation angles than the vertical polarized antenna (40), and that has an electric field the oscillation direction of which intersects with that of an electric wave transmitted and received by the horizontal polarized antenna (30).
Inventors:
SEKIYA YOUHEI (JP)
SUGIMOTO YUZI (JP)
IKEDA MASAKAZU (JP)
KAKUYA YUUJI (JP)
ARAI RYUICHI (JP)
KOIDE SHIROU (JP)
YAMASHITA TAKUYA (JP)
IZUMI HIROYUKI (JP)
SUGIMOTO YUZI (JP)
IKEDA MASAKAZU (JP)
KAKUYA YUUJI (JP)
ARAI RYUICHI (JP)
KOIDE SHIROU (JP)
YAMASHITA TAKUYA (JP)
IZUMI HIROYUKI (JP)
Application Number:
PCT/JP2021/018111
Publication Date:
November 18, 2021
Filing Date:
May 12, 2021
Export Citation:
Assignee:
DENSO CORP (JP)
International Classes:
H01Q1/22; H01Q3/24; H01Q13/08; H01Q21/06; H01Q21/24
Domestic Patent References:
| WO2020009114A1 | 2020-01-09 | |||
| WO2019160346A1 | 2019-08-22 |
Foreign References:
| JP2009124577A | 2009-06-04 | |||
| JPH0537431A | 1993-02-12 | |||
| JP2008079345A | 2008-04-03 |
Attorney, Agent or Firm:
YAHAGI Kazuyuki et al. (JP)
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