| 摘要 |
An antenna device includes: a radio device for radio wave transmission or for radio wave reception; a primary radiator that has a function to radiate radio waves generated by the radio device or a function to feed received radio waves to the radio device; a parabolic reflector that reflects the radio waves radiated from the primary radiator or makes the primary radiator receive radio waves by reflecting the radio waves; a shroud that shields against unnecessary radiation radio waves among the radio waves radiated from the primary radiator and reflected by the parabolic reflector, or shields against radio waves requiring no reception so that the radio waves requiring no reception are not reflected by the parabolic reflector and are not received by the primary radiator; and an antenna mounting mechanism that fits the parabolic reflector to an antenna attachment pole. The shroud is arranged so as to cover at least a right and left of the parabolic reflector, the radio device and the primary radiator are arranged inside the shroud, and the antenna mounting mechanism fits the parabolic reflector to the antenna attachment pole so that the antenna attachment pole is located at a lateral center position of the parabolic reflector. |
