发明名称 |
RADIO WAVE ABSORBING BODY |
摘要 |
PURPOSE:To provide a radio wave absorbing body which displays a very excellent radio wave absorbing capacity in a wide band of 30-1000MHz and can be optionally set in frequency band and absorbing characteristics even if it is formed 10mm or below in thickness. CONSTITUTION:Ferrite thin plates of different materials are laminated to constitute a radio wave absorbent, where a range of impedance required to set a radio wave absorbent in frequency band and its absorbing characteristics larger than -20dB is determined, and ferrite which is in the range of impedance concerned is selected or rubber ferrite or plastic ferrite is adequately selected in content ratio. By this setup, a radio wave absorbent having a radio wave absorbing characteristic in a required wide frequency band can be obtained. |
申请公布号 |
JPH04234103(A) |
申请公布日期 |
1992.08.21 |
申请号 |
JP19900417193 |
申请日期 |
1990.12.28 |
申请人 |
SUMITOMO SPECIAL METALS CO LTD |
发明人 |
MIYAUCHI KATSUHITO;TSURUTOME TOSHITAKA;IMAI SADAHIRO |
分类号 |
C04B35/30;H01F1/00;H01F1/34;H05K9/00 |
主分类号 |
C04B35/30 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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