Title:
ELECTROMAGNETIC WAVE SHIELDING MATERIAL AND MANUFACTURING METHOD THEREOF
Document Type and Number:
Japanese Patent JP2021118196
Kind Code:
A
Abstract:
To provide an electromagnetic wave shielding material having a narrow band resonance frequency, which can easily change a resonance frequency and can selectively and accurately shield an electromagnetic wave of a specific frequency.SOLUTION: In a selective electromagnetic wave shielding material according to the present invention that selectively shields electromagnetic waves of a frequency x (GHz), on the surface of a base material having a relative permittivity εr, a plurality of conductive patterns having a closed loop and having an entire circumference L (mm) satisfying the following equation (1) are arranged without contacting each other.SELECTED DRAWING: Figure 1
Inventors:
KATANO HIROTOMO
WATANABE TSUGUO
UENO MASARU
UEDA TAKASHI
WATANABE TSUGUO
UENO MASARU
UEDA TAKASHI
Application Number:
JP2020008349A
Publication Date:
August 10, 2021
Filing Date:
January 22, 2020
Export Citation:
Assignee:
DAICEL POLYMER LTD
DAICEL CORP
DAICEL CORP
International Classes:
H05K9/00; B32B15/08; B32B15/10; B32B15/12; B32B15/14; E04B1/92; E04F13/08; H01P11/00; H01Q15/14
Attorney, Agent or Firm:
Goto Patent Office