Title:
MICROLENS ARRAY ANTENNA, AND RADAR DEVICE AND VEHICLE HAVING SAME
Document Type and Number:
WIPO Patent Application WO/2023/276606
Kind Code:
A1
Abstract:
Provided are a microlens array antenna less subject to a decrease in antenna gain or degradation of side lobe characteristics, and a radar device and a vehicle having the same. A microlens array antenna 1A is provided with: a planar array antenna 3 formed on a substrate 2; dielectric lenses 4 provided over the planar array antenna 3; and a dielectric plate 5 vertically rising from the substrate 2 between the dielectric lenses 4. Each of the dielectric lenses 4 is provided over each of patch antennas 3a of which the planar array antenna 3 is composed. Each of the patch antennas 3a emits radio waves, of which radio waves α0 emitted at a low elevation angle and advancing toward the dielectric lens 4 provided over an adjacent patch antenna 3a are reflected by the dielectric plate 5 rising from the substrate 2 between the dielectric lenses 5.
Inventors:
KAWAHATA KAZUNARI (JP)
Application Number:
PCT/JP2022/023384
Publication Date:
January 05, 2023
Filing Date:
June 09, 2022
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
H01Q1/52; G01S7/02; G01S7/03; G01S13/931; H01Q13/08; H01Q15/08; H01Q19/06; H01Q21/06
Domestic Patent References:
| WO2020110696A1 | 2020-06-04 | |||
| WO2021070462A1 | 2021-04-15 |
Foreign References:
| EP3518342A1 | 2019-07-31 | |||
| JP2018207301A | 2018-12-27 | |||
| JPH10126146A | 1998-05-15 |
Attorney, Agent or Firm:
MINEGISHI Takeshi (JP)
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