| 摘要 |
A multi-band antenna is provided to implement miniaturization and to obtain a high gain and a high board band property with a micro strip antenna structure. A multi-band antenna includes a dielectric substrate(20), a feeding conductive pattern(23), a first conductive pattern(21), a second conductive pattern(22), a ground plate(25), and a third conductive pattern(24). The feeding conductive pattern is formed on a side of the dielectric substrate and is connected to an end of a feeding line. The first conductive pattern is connected to the other end of the feeding line. The second conductive pattern is connected to the other end of the feeding line and is electromagnetically coupled to the first conductive pattern. The ground plate is formed on the other side of the dielectric substrate. The third conductive pattern is formed on the other side of the dielectric substrate having a predetermined gap from the ground plate. |
