| 摘要 |
PROBLEM TO BE SOLVED: To provide a reception antenna device for receiving radiation power of satellite communication or satellite broadcast radiated from a geostationary satellite of a reception object, and to provide a manufacturing method of a mirror surface-corrected reflector.SOLUTION: A reception antenna device 10 comprises a mirror surface-corrected reflector 11 and a power feeding part 12 for receiving reception radio waves of radiation power reflected by the mirror surface-corrected reflector 11. A manufacturing method of the mirror surface-corrected reflector 11 includes: calculating a coordinate area determined from a geostationary orbit in a view from a plurality of reception areas with respect to a geostationary satellite of a reception object with a parabolic surface having a fixed curvature, and arranging gain constraint points in an area covering the geostationary orbit and an area at a specific orbit position; and correcting a mirror surface shape of the parabolic surface by giving a first gain limit value relating to the specific orbit position and a second gain limit value relating to the area determined by the geostationary orbit. |
