A miniaturized horn antenna suitable for ultra-wideband measurement, comprising:
- a horn antenna body;
- a coaxial connector;
- and
- a mounting base, wherein the horn antenna body comprises an upper plate, a lower plate, a side plate and a cover plate, the upper plate and the lower plate are provided with ridges, the upper plate and the lower plate are in a symmetrical structure integrally and integrally formed separately, and both the upper plate and the lower plate comprise left parts and right parts, a right part of the upper plate and a right part of the lower plate form an upper half cavity and a lower half cavity respectively, the upper half cavity and the lower half cavity form an excitation cavity;
- the miniaturized horn antenna further comprises mounting seats formed on front and rear sides of the upper half cavity and the lower half cavity, wherein at least one a first threaded holes is provided in the mounting seats separately, each of the at least one the first threaded holes is penetrated through a corresponding mounting seat, at least one pin hole is provided in a mounting seat disposed on the upper plate and a mounting seat disposed on the lower plate separately, an upper mounting groove is formed between the mounting seat disposed on the upper plate and the upper plate, a lower mounting groove is formed between the mounting seat disposed on the lower plate and the lower plate respectively, the upper mounting groove and the lower mounting groove jointly form a mounting space for arranging a protrusion part at a left end of the cover plate, the protrusion part is mounted in the mounting space, the cover plate is fixedly connected with right side surfaces of the upper plate and the lower plate, the left parts of the upper plate and the lower plate are in a trapezoidal structure integrally, widths of the left parts are gradually reduced from left to right, the left parts of the upper plate and the lower plate are provided with vertically-disposed curved ridges in an axial direction of an antenna, a height of the curved ridge is gradually reduced from left to right, at least one side plates is disposed between a front side of the upper plate and a front side of the lower plate and between a rear side of the upper plate and a rear side of the lower plate, an upper end of each of the at least one side plates is fixedly connected with the upper plate, and a lower end of each of the at least one side plate is fixedly connected with the lower plate;
- the coaxial connector is fixedly connected with the upper plate;
- and the mounting base fixes the cover plate on the upper plate and the lower plate.