Waveguide end face butt joint clamp and butt joint structure

The utility model provides a waveguide end face butt joint clamp and butt joint structure. The waveguide end face butt joint clamp includes a pedestal having an accommodation chamber. The pedestal is provided with an opening facing a waveguide and a straight slot for accommodating waveguides. The accommodation chamber is communicated with the straight slot through the opening. Two clamping blocks which face each other in the axial direction of the waveguides and are capable of moving toward each other in the axial direction of the waveguides are disposed in the accommodation chamber. The clamping blocks are provided with limiting parts which are exposed from the opening and are positioned in the straight slot. The limiting parts are used for matching limiting grooves arranged in peripheral faces of the waveguides. According to the waveguide end face butt joint clamp, the rapid butt joint of end faces of two waveguides is realized through face-to-face movement of the two clamping blocks in the axial direction of the waveguides. The waveguide end face butt joint clamp and butt joint structure are simple and convenient to operate; neither holes need to be arranged in the waveguides, no external forces need to be applied to the waveguides, too. Furthermore, the butt joint of the end faces of the waveguides is compact without any connection slits. Therefore, the waveguide end face butt joint clamp and butt joint structure realizes no signal leakage and no signal interfaces, and ensures accurate signal transmission.