| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve the radiation efficiency of a built-in antenna which may have a complex shape in a small wireless installation. <P>SOLUTION: The wireless installation 2 has a substrate 27 built in a casing which is comprised by engaging a first member 25 and a second member 26 in a vertical direction of a figure, and feeds the built-in antenna 21 from a power supply part 20 on the substrate 27. A first part 22d and a second part 22e after branching of an antenna element 22 included in an antenna device 21 are provided on an inner surface and an outer surface of the first member 25, respectively. A magnetic material 13 formed of surfaces is provided substantially in parallel to the first part 22d and the second part 22e, as well as sandwiched by them. <P>COPYRIGHT: (C)2008,JPO&INPIT |
