| 摘要 |
PROBLEM TO BE SOLVED: To provide a parabolic antenna, in which the weight of the entire antenna structure can be reduced by dispensing with a driving mechanism that is moved in accordance with an antenna elevation angle. SOLUTION: Holes 5 are provided in a connecting part 3 connecting a centering part 13 of a main reflection mirror structure 1 with the height axis turning structure part 21 of an height axis turning structure 2, a non-contacting part 4 functioning as a waviness deformation reducing part for reducing a waviness deformation mode that occurs in the main reflector 11, or the connecting part 3 or the centering part 13 in the vicinity of the connecting part 3 and the height axis turning structure part 21.
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