| 摘要 |
PROBLEM TO BE SOLVED: To compose an antenna that has a long communicable longest distance and is highly sensitive. SOLUTION: An antenna coil 21 is composed of a magnetic-material core 1 and a coil conductor CW. The antenna coil 21 is disposed close to a predetermined edge S of a planar conductor 2. Of the coil conductor CW, a first conductor portion 11 close to a first main surface MS1 of the magnetic-material core 1 and a second conductor portion 12 close to a second main surface MS2 of the magnetic-material core 1 are disposed in such a way that they do not overlap with each other when viewed form the normal direction of the first main surface MS1 or the second main surface MS2 of the magnetic-material core 1. Moreover, a coil axis CA of the coil conductor CW is perpendicular to the one edge S of the planar conductor 2. COPYRIGHT: (C)2011,JPO&INPIT
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