Stacked coaxial cavity radio frequency power combiner

A stacked coaxial cavity radio frequency power combiner comprising:

• a device main body, including an outer conductor, in which a cavity is formed in an axial direction;
• a plurality of amplifier modules, each amplifier module including an input coupler that surrounds the device main body, wherein the amplifier modules are spaced apart from each other on an outer wall of the device main body, stacked, and disposed radially and orthogonally to a central axis of the cavity;
• an inner conductor, including a plurality of inner conductor blocks, wherein the inner conductor blocks are stacked and spaced apart from each other by a predetermined inner gap in the central axial direction in the cavity of the device main body, and wherein the inner conductor blocks are disposed corresponding to each layer of the amplifier module;
• at least one inner insulating support located between the plurality of inner conductor blocks;
• and
• an output coupler provided at one side of the device main body and extending outside of the device main body,
• wherein both ends of the plurality of inner conductors include a side gap to provide a capacitance, and electromagnetic waves of the input coupler of the plurality of amplifier modules are input to the output coupler through the plurality of inner conductor blocks.