MAGNETIC CORE MEMBER FOR ANTENNA MODULE, ANTENNA MODULE, AND PERSONAL DIGITAL ASSISTANT EQUIPPED WITH THIS

摘要

PROBLEM TO BE SOLVED: To provide a magnetic core member for antenna module which can improve transmission distance without increasing module thickness, an antenna module, and a personal digital assistant equipped with this.

SOLUTION: In an antenna module 10 in which a magnetic core member 18 formed in sheet-like is laminated in a base substrate 14 in which a loop-like antenna module is formed, as the magnetic core member 18, one in which a figure of merit expressed by μ' × Q of 300 or more is used when an inverse number of a loss factor (tanδ=μ"/μ') expressed by a real part μ' and an imaginary part μ" of complex permeability in operating frequency is set to Q.

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