Radio wave absorber
    35.
    发明授权
    Radio wave absorber 失效
    无线电波吸收器

    公开(公告)号:US06670546B2

    公开(公告)日:2003-12-30

    申请号:US10181384

    申请日:2002-07-17

    IPC分类号: H05K900

    CPC分类号: H05K9/0088 H01Q17/00

    摘要: There is disclosed a thinner-layered radio wave absorber having high absorption performance for a high frequency electromagnetic wave. The radio wave absorber, even when having a magnetic layer of not more than 1 mm in thickness, achieves satisfactory absorption characteristics for the high frequency electromagnetic wave by adopting a structure that a conductor is fixedly attached to a face opposite to an electromagnetic-wave incident face of the magnetic layer of single-layered structure, and also arranging the magnetic layer to have values of a real part &mgr;′ and an imaginary part &mgr;″ of complex relative magnetic permeability of the magnetic layer satisfying an expression of &mgr;″≧m&mgr;′−n (m: real number of m>0, n: real number of n≧0) outside an impedance mismatching region.

    摘要翻译: 公开了一种对于高频电磁波具有高吸收性能的较薄层的电波吸收体。 无线电波吸收体即使在具有1mm以下的磁性层的情况下,通过采用将导体固定地安装在与电磁波入射面相反的面的结构来实现高频电磁波的令人满意的吸收特性 并且还将磁性层布置成具有满足表达式“μ”的磁性层的复数相对磁导率的实部μ'和虚部μ“的值, = mmu'-n(m:实数m> 0,n:实数n> = 0)在阻抗失配区域之外。