| 摘要 |
An antenna for transmitting or receiving electromagnetic waves comprises several electric dipoles positioned over a conducting ground plane (4). The dipoles are arranged in pairs of oppositely located dipoles, and they are arranged in such a way that the geometrical centres of each dipole pair are at least approximately coinciding. The dipoles are supported at certain heights over the ground plane, the height being the same for each dipole pair, by means of a support structure (5) arranged between the dipole and the ground plane, wherein this support structure is at least partly made of electrically conducting material. |
