| 摘要 |
PURPOSE:To attain the control of direction of a primary horn just by a single mechanical means by providing a marker showing the center position to a parabolic reflector plate together with at least >=2 indexes set adjacently to each other along the direction toward the reflector plate at the waveguide side of the primary horn, etc. CONSTITUTION:A center marker 10 is put at the center of a parabolic reflector plate 1, and a projection 11 is provided to the side face of an opening end of a primary horn 4 together with a projection 12 provided at the same side face of a housing of a converter 5 as the projection 11. Then the direction of the primary horn of a converter unit 3 is controlled so that the projections 11 and 12 and the marker 10 are arranged on a straight line as if a target were aimed by a rifle, etc. As a result, the unit 3 is not fixed completely to the plate 1 but can be changed both vertically and horizontally in an adjusting mode by means of a control means 20. Then the unit 3 is fixed tight after adjustment. |
