Title:
ANTENNA DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/138551
Kind Code:
A1
Abstract:
This antenna device (2) comprises a first antenna (31), a second antenna (21), and a third antenna (22). The second antenna (21) and the third antenna (22) transmit radio waves in the radiation direction. The first antenna (31) receives reflected waves of the radio waves transmitted in the radiation direction. The second antenna (21) and the third antenna (22) are arranged so as to be separated from each other in a second direction R. The second antenna (21) and the first antenna (31) are arranged so as to be separated from each other in a first direction Z. The second antenna (21) and the first antenna (31) furthermore at least partially overlap each other in the first direction Z.
Inventors:
AOKI KAZUHIRO (JP)
Application Number:
PCT/JP2021/046994
Publication Date:
June 30, 2022
Filing Date:
December 20, 2021
Export Citation:
Assignee:
DENSO CORP (JP)
International Classes:
H01Q21/06; G01S7/02
Domestic Patent References:
| WO2020158009A1 | 2020-08-06 |
Foreign References:
| US20200072956A1 | 2020-03-05 | |||
| JP2021093711A | 2021-06-17 |
Attorney, Agent or Firm:
NAGOYA INTERNATIONAL PATENT FIRM (JP)
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