The invention provides a high-isolation radial power synthesis
amplifier with
broadband air micro-strips, which comprises a high-isolation radial power divider / synthesizer with
broadband air micro-strips and at least one power
amplifier module. The high-isolation radial power divider / synthesizer with the
broadband air micro-strips comprises an input
waveguide, a coaxial transition structure, a
radial waveguide, the radial air micro-strips and at least one output
waveguide, wherein the coaxial transition structure is arranged between the input
waveguide and the
radial waveguide, the center of the
radial waveguide is connected with the input waveguide through the
coaxial probe transition structure, the air micro-strips in
radial distribution are connected to the periphery of the radial waveguide, a film
resistor disc is pasted between each two adjacent air micro-strips, and each air micro-strip is connected with one output waveguide. The high-isolation radial power synthesis
amplifier with the broadband air micro-strips can realize high-efficiency broadband power synthesis with one-division
multiplexing and in single-mode operation.