The utility model discloses a combined type cavity coupler, and specifically relates to the cavity coupler field, the combined type cavity coupler comprises an upper shell, a lower shell, a wiring terminal, a main guide rod and a
coupling rod, the upper shell is movably connected with the lower shell, the internal space of the upper shell and the internal space of the lower shell are combined to form an inner cavity, the main guide rod and the
coupling rod are located in the inner cavity, and the wiring terminal is connected with the
coupling rod. The wiring ends are installed on the outer wall of the lower shell, the wiring ends are connected through the main guide rod and the coupling rod, a plurality of
metal fins are installed at the bottom of the inner cavity, a
metal pipeline penetrates through the
metal fins, and the interior of the metal pipeline is hollow to form a first channel. Through the heat conduction design of the modularized shell, the metal fins, the metal pipeline and a plurality of channels and in combination with active air flow circulation of the cooling fan, the temperature of the inner cavity is remarkably reduced,
signal attenuation or element damage caused by overheating is avoided, the heat dissipation
system is efficiently compounded, the internal structure is stabilized, and the service life is prolonged. The problems that a traditional integrated coupler is difficult to maintain and insufficient in heat dissipation are solved.