Card-type information apparatus

PROBLEM TO BE SOLVED: To provide a small card type information device which is compactly stored in a casing, with an antenna for radio communication without lowering the transmitting/receiving performance of the antenna. SOLUTION: The information device comprises a wiring board 10 having an electronic component mounted in a wiring pattern 11 on one face and an antenna connecting electrode 12 formed on the other face, a flexible antenna board 15 provided with a first antenna terminal electrode 14a provided on the inside of a looped antenna pattern 14 and a second antenna terminal electrode 14b provided on the outside, a magnetic substance 16 having a through-hole 16a in the position of the first antenna terminal electrode 14a provided between the wiring board 10 and the flexible antenna board 15 opposing each other, and the casing 19 equipped therewith. The antenna connecting electrode 12 is connected to the first antenna terminal electrode 14a and the second antenna terminal electrode 14b via conductive members 26. COPYRIGHT: (C)2008,JPO&INPIT