| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a small-sized planar antenna operable in a wider frequency band. <P>SOLUTION: A low frequency band radiation element 110 includes a first extension part 112 extending in a first direction, a second extension part 114 extending in a second direction roughly orthogonal to the first direction from a terminating end of the first extension part 112, and a third extension part 116 extending in a third direction opposite to the first direction from a terminating end part of the second extension part 114. A width of the second extension part 114 is wider than that of the other extension parts. <P>COPYRIGHT: (C)2013,JPO&INPIT |
