EXCITER OF A MIRROR ANTENNA

The present invention can be used in antennas, specifically in mirror antennas of radio relay, troposphere, and satellite communication systems, as well as in compact mirror antennas of subscriber systems, such as the MITRIS system. The proposed exciter of a mirror antenna with the mirror aperture f/D = 0.38 ... 0.42, where f - focal distance, D - diameter of the mirror, contains a circular feeding waveguide, a flat disk, a conical diffuser, and a ring with two flanges that is installed at the flat disk surface opposite to the radiating aperture of the antenna mirror. The flat disk with diameter of 2.5T, where , - radiation wavelength, is installed at a distance of 0.85 from the radiating aperture, and the diameter of the conical diffuser base and the height of the conical diffuser are accordingly equal to 0.92t and 0.8 , where , - diameter of the circular feeding waveguide. The right flange of the flat disk ring, which is positioned nearer to the exciter longitudinal axis, is conductively connected with the flat disk and installed at a distance of /4 from the flat disk. The second flange, which is positioned farther from the exciter longitudinal axis, with the height exceeding the height of the first flange, is installed at a distance of fh