Title:
ELECTROMAGNETIC WAVE ABSORBER
Document Type and Number:
Japanese Patent JP2019102665
Kind Code:
A
Abstract:
To provide an electromagnetic wave absorber having excellent electromagnetic wave absorption characteristics even to electromagnetic waves of 10 GHz or more.SOLUTION: An electromagnetic wave absorber 100 has a laminated structure including a first layer 10 formed of a dielectric, a second layer 20 having conductivity, a third layer 30 formed of a dielectric, and a fourth layer 40 having conductivity which are laminated in the order therein. The second layer 20 has a sheet resistance of 100 Ω/square or more and 300 Ω/square or less, and the fourth layer 40 is an electromagnetic wave reflector. A conductive material included in the second layer 20 and the fourth layer 40 may include a carbon nanotube array.SELECTED DRAWING: Figure 2
Inventors:
SANO EIICHI
KOJIMA SHUNGO
NAGAOKA KOICHI
MATSUMOTO TOSHIHIRO
KOJIMA SHUNGO
NAGAOKA KOICHI
MATSUMOTO TOSHIHIRO
Application Number:
JP2017232745A
Publication Date:
June 24, 2019
Filing Date:
December 04, 2017
Export Citation:
Assignee:
UNIV HOKKAIDO
JNC CORP
JNC CORP
International Classes:
H05K9/00; B32B7/025; B32B27/18; C01B32/168; H01Q17/00
Attorney, Agent or Firm:
Katsuyuki Okubo
Ichiro Kaneko
Ichiro Kaneko