Ultra-wideband ortho-mode transducer with ridge

An ultra-wideband Ortho-Mode Transducer (OMT) with ridges, comprising a mode separation cavity, a combining cavity and a matching cavity, wherein the mode separation cavity is configured to separate waves transmitted by a common port into at least one TE01 mode and at least one TE10 mode, the combining cavity is connected to two side ports of the mode separation cavity, and the combining cavity is configured to combine at least one TE01 mode transmitted by the two side ports into one and output from a standard rectangular port, and the matching cavity is connected to a through port of the mode separation cavity and is configured to smoothly transit the at least one TE10 mode transmitted by the through port to the standard rectangular port for output;

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• the ultra wide ortho-mode transducer further comprises four ridges, which are a first ridge, a second ridge, a third ridge and a fourth ridge, the first ridge and the second ridge are located on a first side surface and a second side surface, and extend to the combining cavity, the first side surface and the second side surface are opposite surfaces of the mode separation cavity, and the third ridge and the fourth ridge are located on a third side surface and a fourth side surface, and the third side surface and the fourth side surface are opposite surfaces of the mode separation cavity.