Title:
DIELECTRIC MEMBER, VEHICLE BUMPER, RADAR SYSTEM, RADIO WAVE REFLECTION PREVENTING MEMBER, AND RADIO WAVE REFLECTION PREVENTING UNIT
Document Type and Number:
WIPO Patent Application WO/2021/199929
Kind Code:
A1
Abstract:
A dielectric member 1a comprises a substrate 10a and a covering layer 20a. The substrate 10a has a thickness of 1.0 mm to 10.0 mm, and has a dielectric constant of 1.01 to 4.0. The substrate 10a has a first main surface 10f and a second main surface 10s. The covering layer 20a has a thickness of 1.0 mm or less, and has a dielectric constant of 3.0 or greater. The covering layer 20a covers the first main surface 10f. The substrate 10a includes a body section 11. When the body section 11 is divided into n sections in the thickness direction of the substrate 10a, the n layer-shaped sections 11d of the body section 11 satisfy the condition εBi<εB(i+1). εBi is the dielectric constant of the layer-shaped section 11d that is positioned in the ith place from the second main surface 10s to the first main surface 10f, and εB(i+1) is the dielectric constant of the layer-shaped section 11d that is positioned in the (i+1)th place.
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Inventors:
SASAKI SHU (JP)
NAGAOKA NAOKI (JP)
KATO DAIKI (JP)
SAKAMOTO KOJI (JP)
KITAI HIDEYUKI (JP)
NAGAOKA NAOKI (JP)
KATO DAIKI (JP)
SAKAMOTO KOJI (JP)
KITAI HIDEYUKI (JP)
Application Number:
PCT/JP2021/008919
Publication Date:
October 07, 2021
Filing Date:
March 08, 2021
Export Citation:
Assignee:
NITTO DENKO CORP (JP)
International Classes:
B60R19/03; G01S7/03; G01S13/931; H01Q1/42
Foreign References:
| JP2019090875A | 2019-06-13 | |||
| JP2017079448A | 2017-04-27 | |||
| JP2020106384A | 2020-07-09 | |||
| JP2009018790A | 2009-01-29 | |||
| JPH0998888A | 1997-04-15 | |||
| JP2017184106A | 2017-10-05 | |||
| JP2005228939A | 2005-08-25 | |||
| JP2003209387A | 2003-07-25 | |||
| JP2007324317A | 2007-12-13 | |||
| JP2004312696A | 2004-11-04 |
Attorney, Agent or Firm:
KAMADA Koichi et al. (JP)
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