公开(公告)号：US20090040126A1

公开(公告)日：2009-02-12

申请号：US11911764

申请日：2006-04-19

申请人： Tetsuo Inoue

发明人： Tetsuo Inoue

IPC分类号： H01Q1/52

CPC分类号： H05K9/0083 ,  H01F10/131 ,  H01F10/138 ,  H01F10/14 ,  H01F10/265 ,  H01Q1/243 ,  H01Q1/52

摘要： An electromagnetic interference preventing component (18) includes a high-permeability magnetic film in high-frequency in which a real number component μ′ of complex relative permeability at a transmission band frequency of an electronic device (10) incorporating the electromagnetic interference preventing component (18) is 10 or more, tan δ (=μ″/μ′) is 0.1 or less, and a ferromagnetic resonance frequency (fr) is 1.5 times or more of the transmission band frequency. The electromagnetic interference preventing component (18) having the high-permeability magnetic film in high-frequency is disposed in the electronic device (10) having an electromagnetic wave transmitting function, as to selectively decrease the electromagnetic field intensity in directions in which the electromagnetic waves radiated by an electromagnetic wave transmitting part such as an antenna (16) are not required.

摘要翻译： 电磁干扰防止部件（18）包括高频磁导磁体，其中包含电磁干扰防止部件的电子装置（10）的传输带频率下的复数相对磁导率的实数分量μ' 18）为10以上，tanδ（= mu“/ mu'）为0.1以下，铁磁共振频率（fr）为传输频带频率的1.5倍以上。 具有高磁导率磁性膜的电磁干扰防止部件（18）配置在具有电磁波传播功能的电子设备（10）中，以便选择性地降低电磁波的电磁场强度 不需要由诸如天线（16）的电磁波发射部分辐射的辐射。