Title:
電波吸収体、および電波吸収体の製造方法
Document Type and Number:
Japanese Patent JP4113812
Kind Code:
B2
Abstract:
A radio wave absorber is provided which can be produced at a low cost compared to the case of using silicon carbide fiber and which is also superior in radio wave absorption property in 76 GHz band (75-77 GHz frequency band). The radio wave absorber is produced by arranging a radio wave absorbing layer onto the surface of a metal body. The radio wave absorbing layer is made of a radio wave absorbing material containing silicon carbide powder dispersed in matrix resin. Average particle diameter of the silicon carbide powder is 4-40 mum. Silicon carbide powder content in the radio wave absorbing material is 15-45 volume %. Thickness of the radio wave absorbing layer is adjusted so that reflection attenuation of not less than 10 dB is provided in 76 GHz band.
Inventors:
Yasuo Kondo
Toru Matsuzaki
Suematsu Minoru
Okamoto Masaru
Tomohisa Yamamoto
Toru Matsuzaki
Suematsu Minoru
Okamoto Masaru
Tomohisa Yamamoto
Application Number:
JP2003287143A
Publication Date:
July 09, 2008
Filing Date:
August 05, 2003
Export Citation:
Assignee:
Kitagawa Industry Co., Ltd.
Uchiyama Industry Co., Ltd.
Uchiyama Industry Co., Ltd.
International Classes:
H05K9/00; H01Q17/00
Domestic Patent References:
| JP2002061130A | ||||
| JP55099800A | ||||
| JP3238895A | ||||
| JP62265799A | ||||
| JP2001077584A |
Attorney, Agent or Firm:
Tsutomu Adachi