| 摘要 |
<P>PROBLEM TO BE SOLVED: To reduce the cost of an apparatus by eliminating needs of through-holes. <P>SOLUTION: In the loop antenna apparatus wherein an antenna element 2 is printed and formed on a single-side printed wiring board 1, the antenna element 2 comprises: loop patterns 21, 22 formed by helically winding one conductor pattern twice; a pair of drawing patterns 21a, 22a formed by drawing both terminal portions of the one conductor pattern from the loop patterns 21, 22 to the outside of a loop such in parallel with each other; and a protruding pattern 23 which is protruded and formed in a U shape so as to detour the pair of drawing patterns 22a. <P>COPYRIGHT: (C)2009,JPO&INPIT |
