Waveguide coaxial conversion device

A waveguide coaxial conversion device comprises a rectangular waveguide cavity, a door button, a coaxial inner conductor, a coaxial outer conductor, a short-circuit waveguide, a positioning locking ring and a lifting assembly, and the door button is installed in the rectangular waveguide cavity; the lower portion of the coaxial inner conductor is connected with the lifting assembly, and the upper portion of the coaxial inner conductor penetrates through the center of the door button and extends out to form a coaxial waveguide structure with the coaxial outer conductor. The coaxial outer conductor is mounted on the upper end surface of the rectangular waveguide cavity; the short-circuit waveguide is mounted on the opposite side of the feed-in waveguide port of the rectangular waveguide cavity; the positioning locking ring is arranged in a positioning center at the bottom of the door button; the lifting assembly is installed at the bottom of the rectangular waveguide cavity. 一种波导同轴转换装置，包括矩形波导腔、门纽、同轴内导体、同轴外导体、短路