Title:
電磁波伝搬制御部材、電磁波伝搬制御構造体、電磁波伝搬制御部材付きサッシ及び窓構造体
Document Type and Number:
Japanese Patent JP6965989
Kind Code:
B2
Abstract:
This electromagnetic wave propagation control member (5) is arranged at the edge of an opening through which an electromagnetic wave passes, and includes a groove defined with a conductor. The depth of the groove in a direction perpendicular to the surface of the opening is (λ/√εr)(1/8+N/2) or larger and (λ/√εr)(3/8+N/2) or smaller, where the wavelength of the electromagnetic wave is denoted as λ, the relative permittivity in the groove is denoted as εr, and a positive integer is denoted as N. According to the present invention, obtained are: an electromagnetic wave propagation control member which controls the propagation of an electromagnetic wave in the opening when communication or broadcast reception is performed through an opening of an electromagnetic wave such as a window of a house or a building; and a sash and a window structure provided with said electromagnetic wave propagation control member.
More Like This:
| WO/2022/154058 | MAGNETIC COMPOSITE |
| JP3074941 | [Name of device] Storage bag for stopping communication of mobile phones |
| JPS51132742 | WAVE-ABSORBER |
Inventors:
Kentaro Mikawa
Application Number:
JP2020513403A
Publication Date:
November 10, 2021
Filing Date:
April 09, 2019
Export Citation:
Assignee:
MURATA MANUFACTURING CO.,LTD.
International Classes:
H01Q17/00; E06B7/28; H01Q19/06; H05K9/00
Domestic Patent References:
| JP11004118A | ||||
| JP2015231182A | ||||
| JP4134909A | ||||
| JP10209665A |
Foreign References:
| US20170338568 | ||||
| WO2009017203A1 |
Attorney, Agent or Firm:
Kaede International Patent Office
Previous Patent: Seamless steel pipe heat treatment rectification processing direct connection equipment
Next Patent: connector
Next Patent: connector