| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a non-contact communication medium with an appropriate communication characteristic preventing occurrence of a communication dead zone within a range where communication is available. <P>SOLUTION: A non-contact communication medium 100 includes: an antenna module 1 for non-contact communication; and a magnetic core member 5 having complex relative permeability of which a real part (μ') is 120 or more and an imaginary part (μ") is 7 or more and 21 or less at the frequency of non-contact communication. This enables an electromagnetic wave (noise) of a frequency band other than a basic carrier output from a reader/writer to be suppressed, and can prevent occurrence of a communication dead zone within a range where communication is available. <P>COPYRIGHT: (C)2012,JPO&INPIT |
