Large-power waveguide load based on electromagnetic meta-material

The invention relates to a large-power waveguide load based on an electromagnetic meta-material, and the waveguide load comprises a waveguide for transmitting a microwave signal, and also comprises an absorber which is located in the waveguide. One end of the waveguide is provided with an opening, and the other end of the waveguide is closed. One end with an opening is provided with a flange plate, and the interior of the waveguide is provided with a V-shaped cavity. Two sides surface of the V-shaped cavity respectively extend towards the other end of the waveguide from two opposite sides of the opening, and are intersected on the end face of the other end, wherein the inclined angle of the V-shaped cavity is theta which is greater than zero but not greater than 30 degrees. The absorber is located on an inner wall of the V-shaped cavity, and the absorber is made of a meta-material. According to the invention, the interior of the waveguide is provided with the V-shaped cavity, and the meta-material is welded o