| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a small monopole antenna that operates in a plurality of frequencies about a monopole antenna used in mobile communication of an automobile or the like. <P>SOLUTION: This monopole antenna 40 is provided integrally with a flat plate-shaped conductor 10 arranged oppositely from a ground conductor 1 with a spaced interval h by concentrically connecting the innermost, intermediate, and outermost conductors 11, 12 and 13 from the inside with connection conductors 31 and 32 between the respective conductors, and has a linear conductor 3 and a short circuit conductor 5. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
