Title:
RADIO WAVE ABSORPTION MATERIAL
Document Type and Number:
Japanese Patent JP2003309395
Kind Code:
A
Abstract:
To more easily and inexpensively provide a radio wave absorption material, having high absorption effect and wide range of applications.
The radio wave absorption material comprises a sheet made of short conductive fibers. In this material, at least one point of a complex relative dielectric constant, in the range of 1 to 20 GHz of frequency, lies within a region surrounded by formulae (1) R=2, (2) R=50, (3) R=0.7R1/2, and (4) J=6.5R1/2, wherein the real part of the dielectric constant is R, and the imaginary part is J.
Inventors:
KASABO YOSHINORI
SHIMIZU KAZUHARU
FUJIMURA YOICHI
SHIMIZU KAZUHARU
FUJIMURA YOICHI
Application Number:
JP2003034720A
Publication Date:
October 31, 2003
Filing Date:
February 13, 2003
Export Citation:
Assignee:
TORAY INDUSTRIES
International Classes:
H05K9/00; (IPC1-7): H05K9/00