Title:
HALF-WAVELENGTH ANTENNA DEVICE AND LOW-PROFILE ANTENNA DEVICE USING SAME
Document Type and Number:
WIPO Patent Application WO/2023/090212
Kind Code:
A1
Abstract:
Provided is a small-sized half-wavelength antenna device the directionality of which can be adjusted. The half-wavelength antenna device for vehicles comprises an electroconductive plate 10, a half-wavelength element 20, and a passive element 30. The electroconductive plate 10 has a feed unit 11 and a ground 12. The half-wavelength element 20 is erected on the electroconductive plate 10, connected to the feed unit 11, and insulated from the ground 12. The passive element 30 is disposed in proximity to and parallel to the half-wavelength element 20 so as to be electromagnetically coupled to the half-wavelength element 20, and is insulated from the ground 12.
Inventors:
IINO SHINJI (JP)
Application Number:
PCT/JP2022/041638
Publication Date:
May 25, 2023
Filing Date:
November 09, 2022
Export Citation:
Assignee:
HARADA IND CO LTD (JP)
International Classes:
H01Q9/32; H01Q1/22; H01Q1/32; H01Q9/40; H01Q19/26; H01Q21/30
Domestic Patent References:
| WO2019026488A1 | 2019-02-07 | |||
| WO2020075744A1 | 2020-04-16 | |||
| WO2017141635A1 | 2017-08-24 |
Foreign References:
| JP2011004234A | 2011-01-06 | |||
| JP2006197265A | 2006-07-27 | |||
| JP2017108395A | 2017-06-15 |
Attorney, Agent or Firm:
NAMAI, Kazuhira (JP)
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