Title:
ミリ波レーダー用カバー
Document Type and Number:
Japanese Patent JP6913228
Kind Code:
B2
Abstract:
A millimeter-wave radar cover capable of effectively utilizing electromagnetic waves (millimeter waves) of a millimeter-wave radar and sufficiently reducing unnecessary radiation of electromagnetic waves is provided.A millimeter-wave radar cover (1) housing a millimeter-wave radar including an antenna (30) and an electronic circuit (40) configured to drive the antenna (30) includes: a first site (A) provided in front of the millimeter-wave radar to protect the millimeter-wave radar and transmit millimeter waves emitted from the antenna (30); and a second site (B) including a housing space in which the antenna (30) and the electronic circuit (40) except for the first site (A) are housed. The first site is made of a stacked structural body (10) obtained by stacking at least one layer of a first constituent material (11) having a negative relative permittivity in the frequency band of the millimeter waves and a second constituent material (12) having a positive relative permittivity in the frequency band of the millimeter waves, and the stacked structural body (10) is curved in a convex shape in a direction centered at an emission source of the millimeter electromagnetic waves and departing from the emission source.
Inventors:
Takeshi Yamada
Kento Tada
Kento Tada
Application Number:
JP2020505044A
Publication Date:
August 04, 2021
Filing Date:
March 05, 2019
Export Citation:
Assignee:
NOK CORPORATION
International Classes:
H01Q1/42; G01S7/03; H01Q1/24; H01Q15/02; H01Q15/14
Domestic Patent References:
| JP2016145777A | ||||
| JP2015053661A |
Foreign References:
| US20110199281 | ||||
| WO2018047937A1 |
Attorney, Agent or Firm:
Einzel Felix-Reinhard
Hiroyasu Ninomiya
Ueshima
Hiroyasu Ninomiya
Ueshima