| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To make portable radio equipment thinner by making a built-in antenna to be in a low profile. <P>SOLUTION: A second radiation conductor having an electric length about a 1/2 as long as that of a first radiation conductor is provided in parallel from the vicinity of the center of the first radiation conductor to one end, one ends of the first and second radiation conductors are electrically connected so as to feed power to the vicinity of the center of the first radiation conductor and the other end of the second radiation conductor. Since only a current caused to flow in the longitudinal direction of the first and second radiation conductors contributes to radio wave radiation, the spacing between the first and second radiation conductors is shortened to make an antenna device to be in a low profile, thereby making the portable radio equipment thinner. <P>COPYRIGHT: (C)2004,JPO&NCIPI</p> |
