ELECTROMAGNETIC WAVE ABSORBER

WIPO Patent Application WO/2006/035912

A1

A conductive pattern (12) has an external shape which is substantially a polygon and can have a high peak value of the electromagnetic wave absorption amount as compared to a case when the conductive pattern has a circular external shape. Thus, the conductive pattern is basically a polygon and at least one of the corner portions is formed by a curved line. This minimizes the shift of the frequency at which the absorption amount becomes a peak value by the polarization direction of the electromagnetic wave. Accordingly, it is possible to realize an electromagnetic absorber having an excellent electromagnetic wave absorption characteristic exhibiting a high peak value of the absorption amount of the electromagnetic wave and a small shift of frequency at which the absorption amount becomes a peak value by the polarization direction of the electromagnetic wave.

MATSUSHITA MASATO (JP)
YOSHIDA TAKAHIKO (JP)
GO HARUHIDE (JP)
KIYOHARA YOSHIHARU (JP)
MAEZAWA MAKOTO (JP)
SATO SHINICHI (JP)

PCT/JP2005/018036

April 06, 2006

September 29, 2005

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NITTA CORP (JP)
MATSUSHITA MASATO (JP)
YOSHIDA TAKAHIKO (JP)
GO HARUHIDE (JP)
KIYOHARA YOSHIHARU (JP)
MAEZAWA MAKOTO (JP)
SATO SHINICHI (JP)

H05K9/00; H01Q17/00

JP2002076670A	2002-03-15
JP2003069278A	2003-03-07
JP2003163487A	2003-06-06
JP2003243876A	2003-08-29
JP2004259910A	2004-09-16
JPH09307267A	1997-11-28
JP2004193531A	2004-07-08
JP2005288969A	2005-10-20
JP2005244043A	2005-09-08
JP2005277373A	2005-10-06

See also references of EP 1806961A4

Saikyo, Keiichiro (2-6, Bingomachi 3-chome,, Chuo-ku, Osaka-sh, Osaka, JP)

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