发明名称 |
MAGNETIC CORE MEMBER, ANTENNA MODULE AND PORTABLE COMMUNICATION TERMINAL PROVIDED WITH THE SAME |
摘要 |
<P>PROBLEM TO BE SOLVED: To provide a magnetic core member configured so as to be able to simultaneously satisfy the improvement of a communication characteristic of an antenna coil and sufficient electromagnetic shielding action from a shield plate, an antenna module and a portable communication terminal provided with the antenna module. <P>SOLUTION: In this magnetic core member 4 arranged between an antenna substrate formed with antenna coils 11 and 12 and a conductive shield plate and configured by filling soft magnetic powder 31 in insulating material 30, the magnetic core member is a two-layer structure consisting of a first layer 4A and a second layer 4B, wherein the first layer 4A has the filling factor of the soft magnetic power 31 smaller than that of the second layer 4B. The magnetic core member 4 is configured such that a first plane 4a of a side facing the antenna substrate 2 and a second plane 4b of a side facing the shield plate have different magnetic characteristics different from each other. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
申请公布号 |
JP2005080023(A) |
申请公布日期 |
2005.03.24 |
申请号 |
JP20030309366 |
申请日期 |
2003.09.01 |
申请人 |
SONY CORP |
发明人 |
TAKAHASHI ISAO;NOZAWA KAZUO;AKIYASU HIROSHI |
分类号 |
G06K19/07;G06K17/00;G06K19/077;H01Q1/24;H01Q1/38;H01Q1/52;H01Q7/06;H01Q17/00;H01Q19/10;H04B1/59 |
主分类号 |
G06K19/07 |
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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