| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an antenna system at low cost the broadbanding and downsizing of which can easily be attained. <P>SOLUTION: The antenna system 1 is provided with: an inside radiation conductor 3 and an outside radiation conductor 4 provided to one side of an insulation base 2; a feeding conductor 5 penetrated through the insulation base 2 and connected to the inside radiation conductor 3; a ground conductor 6 provided to the other side of the insulation base 2; a first short-circuit conductor 7 whose both ends are penetrated through the insulation base 2 and connected to the inside radiation conductor 3 and the ground conductor 6; and a second short-circuit conductor 8 whose both ends are penetrated through the insulation base 2 and connected to the inner radiation conductor 3 and the ground conductor 6, and the outside radiation conductor 4 is formed to a region for enclosing the inside radiation conductor 3. The inside radiation conductor 3 of the antenna system 1 is excited by feeding power to the feeding conductor 5, and the outside radiation conductor 4 is excited by the electromagnetic coupling between the feeding conductor 5 and the second short-circuit conductor 8. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
