Title:
レーダ装置
Document Type and Number:
Japanese Patent JP6654506
Kind Code:
B2
Abstract:
A radar apparatus includes an antenna unit and a cover unit. The cover unit is arranged at a position through which an electromagnetic wave sent and received by the antenna unit passes. The cover unit has, in an order from closer to the antenna unit, a first dielectric layer formed of a dielectric and a second dielectric layer formed of a dielectric having a dielectric constant different from that of the first dielectric layer. The first dielectric layer is configured to have a thickness not more than that for a maximum external transmittance. The external transmittance indicates a transmittance of an electromagnetic wave, which is emitted in a direction of an incidence angle with respect to the first dielectric layer, which is equal to a maximum sensing angle, when the electromagnetic wave is transmitted through the cover unit.
Inventors:
Sakai Toshiya
Kazumasa Sakurai
Kazushi Kawaguchi
Takaya Takuya
Kazumasa Sakurai
Kazushi Kawaguchi
Takaya Takuya
Application Number:
JP2016102582A
Publication Date:
February 26, 2020
Filing Date:
May 23, 2016
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; B60R19/03; B60R19/48; G01S13/931; H01Q1/42; H01Q15/08
Domestic Patent References:
| JP2015137877A | ||||
| JP2009124485A |
Foreign References:
| US20140091969 |
Attorney, Agent or Firm:
Nagoya International Patent Service Corporation