5G millimeter-wave novel dual-polarized horn antenna

A 5G millimeter-wave novel dual-polarized horn antenna, wherein the 5G millimeter-wave novel dual-polarized horn antenna comprises an upper plate, a lower plate, a front plate, a rear plate and a cover plate, and the cover plate is disposed on a rear end of the antenna, the front plate and the rear plate are disposed between the upper plate and the lower plate, protruding parts extending outwards are disposed on the outer surfaces of the upper plate, the lower plate, the front plate and the rear plate;

• the upper plate, the lower plate, the front plate, the rear plate and the cover plate form an excitation cavity structure, an excitation cavity with a cross section which is rectangular is disposed in the excitation cavity structure, the cross section of the excitation cavity is gradually reduced from right to left and then kept unchangeable, a left end of the excitation cavity is sealed with the cover plate, the upper plate, the lower plate, the front plate and the rear plate in the excitation cavity all comprise a curve ridge, and the included angle between two adjacent curve ridges is 90 degrees;
• and a first inserting groove structure is enclosed by inner sides of the left ends of the upper plate, the lower plate, the front plate and the rear plate, a boss is disposed on a end face of the right side of the cover plate, the boss is inserted into the first inserting groove structure, two rows holes which are crossed blind are disposed on a left end face of the boss and are in “+” orthogonality with the four curve ridges.