| 摘要 |
PURPOSE: A multiband antenna is provided to improve a property at a specific frequency by electrically connecting a top surface and a bottom surface of dielectric through a via hole. CONSTITUTION: A first feeding metal conductor(201) and a first ground metal conductor(202) are formed on a front surface of a dielectric substrate(101). A second feeding metal conductor and a second ground metal conductor are formed on a rear surface of the dielectric substrate in order to face the first feeding metal conductor and the first ground metal conductor. A via hole(108,109) penetrates a space between the first feeding metal conductor and the second feeding metal conductor, and a space between the first ground metal conductor and the second ground metal conductor. Four metal pattern parts are formed on a surface of the dielectric substrate. The four metal pattern parts are connected to the first feeding metal conductor, the first ground metal conductor, the second feeding metal conductor, and the second ground metal conductor. |
