Sub-reflecting mirror of the twin reflector antenna

摘要

The subreflector of the dual reflector antenna includes a first end having a convex inner surface, a second end adapted for coupling to the end of the waveguide, and a first end and a second end. And a main body extending therebetween. The body is in contact with a first dielectric component having a portion that penetrates the waveguide and a portion that is outside the waveguide, a first end of the sub-reflector, and a first diameter of the first dielectric component. A first cylindrical portion of the dielectric component that is larger than the portion outside the waveguide and extended by a conical portion adjacent to the first cylindrical portion and penetrating into the first dielectric component. A second metal part comprising a second cylindrical portion. The first cylindrical portion features a flat ring-shaped surface that makes an angle of less than 90 ° with the axis of the sub-reflecting mirror so as to face the main reflecting mirror.