| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an antenna which operates in a plurality of frequencies and is capable of ensuring required radio wave radiation strength even in any operating frequency. <P>SOLUTION: An antenna 40 is configured by providing inner conductor and first, second outer conductors 11, 12, 13 concentrically from the inside on a flat conductor 10 faced to a ground plane 1 and separated from it by clearance "h", connecting the conductors by connecting conductors 31a, 31b, 32a, 32b, integrally providing said components, and including a linear conductor 3 and a short-circuit conductor 5. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
