| 摘要 |
<P>PROBLEM TO BE SOLVED: To make an antenna of a compact wireless device multiple-resonant and to mount the antenna so as to be compact. <P>SOLUTION: In an antenna constitutive member 132, a turnaround monopole type first antenna element 110 is formed from a first surface 105 to an opposite surface. A monopole type second antenna element 120 is branched from a branching spot 112 and its tip is provided on a surface opposite to a third surface 107. A fourth end 134 of a third antenna element 133 is provided in the vicinity of the first antenna element 110. The antenna constitutive member 132 is rotated at 90° around the x-axis in the figure and mounted on a substrate 101. A first end 111 is connected to a feed point 101a, a second end 115 is connected to a ground point 101c, and the fourth end 134 is connected to a ground point 101d, respectively. <P>COPYRIGHT: (C)2007,JPO&INPIT |
