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Title:
WAVE ABSORBER
Document Type and Number:
Japanese Patent JP2007073662
Kind Code:
A
Abstract:

To provide a wave absorber with reflective attenuation capability capable of preventing a communication failure caused by reflection of electromagnetic waves and the like, thinning, reducing weight and also possessing the characteristics of absorbing electric waves of two or more frequencies.

The wave absorber comprises a conductive layer consisting of a conductor, a dielectric layer consisting of a dielectric composed of one layer or two or more layers, and a pattern layer having two or more patterns consisting of a conductor. Each pattern in the pattern layer is constituted such that at least one loop groove 102 is formed in the inside of a patch pattern 101.


Inventors:
MASUDA YOSHIYUKI
OTANI NOBORU
NAKANO HISAMATSU
KO HYAKUKYO
Application Number:
JP2005257530A
Publication Date:
March 22, 2007
Filing Date:
September 06, 2005
Export Citation:
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Assignee:
MITSUBISHI GAS CHEMICAL CO
NAKANO HISAMATSU
International Classes:
H05K9/00; H01Q17/00
Domestic Patent References:
JPH06244583A1994-09-02
JPH06140787A1994-05-20
JPH10335877A1998-12-18
JP2003243876A2003-08-29
JP2003142938A2003-05-16
JPS6331606U1988-03-01
JPH06152178A1994-05-31
JPH11307989A1999-11-05
JPH0430607A1992-02-03
JPH04255294A1992-09-10
JP2000236214A2000-08-29
JP2003298339A2003-10-17
Attorney, Agent or Firm:
Masatake Shiga
Tadashi Takahashi
Takashi Watanabe
Masakazu Aoyama
Suzuki Mitsuyoshi
Kazuya Nishi
Yasuhiko Murayama