Title:
ELECTROMAGNETIC WAVE ABSORBER
Document Type and Number:
Japanese Patent JP2021103785
Kind Code:
A
Abstract:
To provide an electromagnetic wave absorber having good radio wave absorption against oblique incidence, particularly, oblique incidence of radio waves near 79 GHz.SOLUTION: (Characteristic A) In TM polarization measurement of 45° incident, the absorption range of the absorption performance in the frequency band 75 to 85 GHz of 15 dB or more in an electromagnetic wave absorber is 4 GHz or more, and/or (Characteristic B) in TE polarization measurement of 45° incident, the absorption range of the absorption performance of 15 dB or more in the frequency band 75 to 85 GHz in the electromagnetic wave absorber is 4 GHz or more.SELECTED DRAWING: None
Inventors:
MUTO KATSUNORI
NAKAO SACHIKO
HAYASHI HIDEKI
NAKAO SACHIKO
HAYASHI HIDEKI
Application Number:
JP2021047357A
Publication Date:
July 15, 2021
Filing Date:
March 22, 2021
Export Citation:
Assignee:
SEKISUI CHEMICAL CO LTD
International Classes:
H05K9/00; B32B7/025; H01Q17/00
Attorney, Agent or Firm:
Patent Business Corporation Saegusa International Patent Office