Title:
Radar device
Document Type and Number:
Japanese Patent JP6326920
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a radar device that can reduce a wrong detection due to an unnecessary electromagnetic wave included in a transmission wave transmitted from a transmission antenna.SOLUTION: A radar device comprises: a transmission antenna 22 that has a plurality of antenna elements 22a, transmits an electromagnetic wave toward a direction of a detection object from the plurality of antenna elements 22a; a reception antenna 23 that receives a reflection wave in which the electromagnetic wave transmitted from the transmission antenna 22 is reflected upon an object; and a cover 11 that protect the transmission antenna 22 and the reception antenna 23. In a surface of the cover 11 intersecting an unnecessary electromagnetic wave to be transmitted in a direction different from the direction of the detection object from the transmission antenna 22, a convexity part is formed that causes the unnecessary electromagnetic wave to generate diffraction, and thereby a wrong detection due to the unnecessary electromagnetic wave can be reduced.
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Inventors:
Kazumasa Sakurai
Takaoka Akira
Kitamura Takayuki
Takaoka Akira
Kitamura Takayuki
Application Number:
JP2014077812A
Publication Date:
May 23, 2018
Filing Date:
April 04, 2014
Export Citation:
Assignee:
株式会社ＳＯＫＥＮ
株式会社デンソー
株式会社デンソー
International Classes:
G01S7/03; G01S13/93; H01Q15/08; H01Q21/06
Domestic Patent References:
| JP2007057483A | ||||
| JP2003243920A | ||||
| JP2005172693A | ||||
| JP2004077399A | ||||
| JP2004312696A | ||||
| JP11231041A | ||||
| JP2014020846A |
Foreign References:
| WO2012144150A1 | ||||
| US3864690 |
Attorney, Agent or Firm:
Patent Business Corporation Yuai Patent Office