| 摘要 |
Dual frequency aerial feed arrangement consisting of a main feed horn (2) having on either side of its mouth ground plane members (3) above which are mounted dipole radiators (4). The ground plane members are set back from the mouth of the horn and carry up-standing plates (5) extending to a plane including the mouth of the horn the plates providing a corrugation effect with the corrugations aligned with the polarisation of the dipole radiators. |
