Skewed-slot corrugated multi-mode feed-source loudspeaker applied to single-offset reflector antenna

The invention belongs to the field of satellite communication technology and discloses a skewed-slot corrugated multi-mode feed-source loudspeaker applied to a single-offset reflector antenna and a satellite communication system. According to the skewed-slot corrugated multi-mode feed-source loudspeaker, the starting end is an input waveguide segment, and the main propagation mode is a TE11 mode;a continuous reducing segment is connected to the tail end of the input waveguide segment, and impedance bandwidth is increased; a tail radiator is a corrugated segment composed of five skewed slots with different depths, and the TE11 mode and a TE21 mode are converted into an HE11 mode and an HE21 mode respectively; and a waveguide transition segment is added between the reducing segment and thecorrugated segment, three cylinders arranged at the interval of 120 degrees are inserted into the inner wall of the waveguide transition segment, and the high-order mode, namely the TE21 mode is excited. Since field distributi