Title:
ANTENNA DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/138785
Kind Code:
A1
Abstract:
A vehicle-mounted antenna device (100) is provided with: an antenna case (101); an antenna base (102) forming an accommodating space, together with the antenna case (101); a first antenna element (108) accommodated in the accommodating space for at least circular polarization transmission or reception; a second antenna element (110) disposed proximate to the first antenna element (108) for at least linear polarization transmission or reception; and at least one parasitic element (111), (112a), (112b), or (112c) that constitutes a reflector or a waveguide for the second antenna element (110).
Inventors:
HARA BUNPEI (JP)
HIROKI SEIYA (JP)
HIROKI SEIYA (JP)
Application Number:
PCT/JP2021/047744
Publication Date:
June 30, 2022
Filing Date:
December 22, 2021
Export Citation:
Assignee:
YOKOWO SEISAKUSHO KK (JP)
International Classes:
H01Q21/28; H01Q1/22; H01Q1/32; H01Q19/22
Domestic Patent References:
| WO2018105235A1 | 2018-06-14 | |||
| WO2017213243A1 | 2017-12-14 | |||
| WO2015125426A1 | 2015-08-27 | |||
| WO2020121748A1 | 2020-06-18 |
Foreign References:
| JP2020198593A | 2020-12-10 | |||
| JP2020213149A | ||||
| US194362631700P |
Attorney, Agent or Firm:
HAYAMI Shinji et al. (JP)
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