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Title:
ELECTROMAGNETIC WAVE PROPAGATION CONTROL MEMBER, ELECTROMAGNETIC WAVE PROPAGATION CONTROL STRUCTURE, ELECTROMAGNETIC WAVE CONTROL MEMBER-MOUNTED SASH, WINDOW STRUCTURE, AND ELECTRONIC APPARATUS
Document Type and Number:
WIPO Patent Application WO/2019/198702
Kind Code:
A1
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.

Inventors:
MIKAWA Kentaro (10-1, Higashikotari 1-chome, Nagaokakyo-sh, Kyoto 55, 〒6178555, JP)
Application Number:
JP2019/015422
Publication Date:
October 17, 2019
Filing Date:
April 09, 2019
Export Citation:
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Assignee:
MURATA MANUFACTURING CO., LTD. (10-1, Higashikotari 1-chome Nagaokakyo-sh, Kyoto 55, 〒6178555, JP)
International Classes:
H01Q17/00; E06B7/28; H01Q19/06
Domestic Patent References:
WO2009017203A12009-02-05
WO2017150098A12017-09-08
Foreign References:
US20170338568A12017-11-23
JPH04238404A1992-08-26
JPH04134909A1992-05-08
JP2015213285A2015-11-26
Attorney, Agent or Firm:
KAEDE PATENT ATTORNEYS' OFFICE (1-4-34, Noninbashi Chuo-ku, Osaka-sh, Osaka 11, 〒5400011, JP)
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