PURPOSE: To prevent deterioration in an antenna aperture efficiency from taking place due to partial disturbance in the reflecting characteristic of a radio wave and to prevent deterioration in the company name, product name, type name or a pattern or the like when the company name, product name, type name or a pattern or the like is displayed on a reflecting mirror of the parabolic antenna.

CONSTITUTION: A reflecting mirror 2 is a reflecting mirror employing a punching metal with punch holes 6 made thereto for its surface. Then a display frame section 10 having no punch hole 6 is formed to the reflecting mirror 2 and the punch holes 6a tracing the product name are formed in the display frame section 10.