Title:
電波吸収体
Document Type and Number:
Japanese Patent JP4461970
Kind Code:
B2
Abstract:
A wave absorber of the present invention includes a sequentially laminated structure including an conductor layer (11) made of a conductive material; a first dielectric layer (polycarbonate substrate (12) and bismaleimide-triazine substrate (13)) made of one layer or a multilayer of a dielectric material; and a patterned layer (14) including a plurality of a pattern made of the conductive material, wherein the conductor layer, the first dielectric layer, and the patterned layer are laminated sequentially, and each pattern in the patterned layer (14) is different from other adjacent patterns with respect to at least one of size and shape. Therefore, the wave absorber has sufficient reflection-attenuating capability to prevent communication failure caused by a reflection of a radio wave and so on, can be thin-sized and reduced in weight, and has a wide-band attenuation property.
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Inventors:
Yoshiyuki Masuda
Noboru Otani
Nakano Hisamatsu
Noboru Otani
Nakano Hisamatsu
Application Number:
JP2004258182A
Publication Date:
May 12, 2010
Filing Date:
September 06, 2004
Export Citation:
Assignee:
Mitsubishi Gas Chemical Co., Ltd.
International Classes:
H05K9/00; H01Q17/00
Domestic Patent References:
| JP6140787A | ||||
| JP11330775A | ||||
| JP2002246786A | ||||
| JP2004063719A |
Attorney, Agent or Firm:
Masatake Shiga
Tadashi Takahashi
Takashi Watanabe
Masakazu Aoyama
Suzuki Mitsuyoshi
Kazuya Nishi
Yasuhiko Murayama
Tadashi Takahashi
Takashi Watanabe
Masakazu Aoyama
Suzuki Mitsuyoshi
Kazuya Nishi
Yasuhiko Murayama