Waveguide-waveguide interface connecting device

The present invention discloses a waveguide-waveguide interface connecting device that improves an isolation dielectric sheet into a spindle-shaped dielectric sheet. An electromagnetic wave proceeds from one end of a dielectric sheet to the other end of the dielectric sheet in a waveguide, as the cross-sectional area of the dielectric sheet increases, the electromagnetic wave energy is continuously gathered into the dielectric sheet, the electromagnetic wave proceeds along the dielectric sheet to the other end, and the arbitrary connection with the bending of the dielectric sheet can be realized. Then, when the electromagnetic wave passes through a transition region or a waveguide-waveguide connection region or a dielectric bending region, the electromagnetic wave reaches the inside of another waveguide and proceeds to the other end, at that time, as the cross-sectional area of the dielectric sheet becomes smaller, the energy begins to emerge from the dielectric sheet, the area between the dielectric sheet an