| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a loop antenna device capable of increasing the number of coils and achieving a large opening area and a high Q value. <P>SOLUTION: The loop antenna device 2 has a conductive material spirally wound on an insulating substrate 4. In the conductive material, a plurality of loops range, where the loops have prescribed height and width and a substantially rectangular shape in a cross-sectional view. In adjacent loops, where the height portions stand opposite each other, one loop 20 is higher than other loops 10, 30 and other loops are narrower than one loop. <P>COPYRIGHT: (C)2010,JPO&INPIT |
