Title:
RADAR DEVICE AND ANTENNA DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/059115
Kind Code:
A1
Abstract:
The present invention minimizes the overall area occupied by a reception antenna while preventing erroneous detections resulting from azimuth aliasing. A reception antenna includes antenna elements 120a and 120b that are disposed along the horizontal direction, antenna elements 120a and 120c that are disposed along the vertical direction, and an antenna element 120d that is disposed at an angle from the antenna elements 120a and 120b with respect to the horizontal direction and is disposed at an angle from the antenna elements 120a and 120c with respect to the vertical direction. The distance between the centers of the antenna elements 120a and 120b in the horizontal direction differs from the distances between the center of the antenna element 120d and the respective centers of the antenna elements 120a and 120c in the horizontal direction. The distance between the centers of the antenna elements 120a and 120c in the vertical direction differs from the distances between the center of the antenna element 120d and the respective centers of the antenna elements 120a and 120c in the vertical direction.
Inventors:
OUCHI KATSUMI (JP)
KITAYAMA AKIRA (JP)
KURODA HIROSHI (JP)
KITAYAMA AKIRA (JP)
KURODA HIROSHI (JP)
Application Number:
PCT/JP2018/034135
Publication Date:
March 28, 2019
Filing Date:
September 14, 2018
Export Citation:
Assignee:
HITACHI AUTOMOTIVE SYSTEMS LTD (JP)
International Classes:
G01S7/02; G01S7/03; G01S13/44; H01Q19/08; H01Q21/06
Domestic Patent References:
| WO2011092813A1 | 2011-08-04 | |||
| WO2011092814A1 | 2011-08-04 |
Foreign References:
| JP2008083030A | 2008-04-10 | |||
| JP2010534327A | 2010-11-04 | |||
| JP2017005429A | 2017-01-05 | |||
| JP2010008319A | 2010-01-14 | |||
| JP2014219290A | 2014-11-20 | |||
| US20030151541A1 | 2003-08-14 |
Attorney, Agent or Firm:
TODA Yuji (JP)
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