Eight-path power combiner

The utility model discloses an eight-path power combiner, which comprises a cavity, eight input ports arranged on the front side of the cavity, one output port arranged on the rear side of the cavity and seven two-path combiners arranged in the cavity, the cavity comprises an outer conductor cavity and a transmission line inner conductor arranged in the outer conductor cavity; the cavity of the outer conductor is of a double-layer structure, the inner conductor of the transmission line is also of a double-layer structure, and the output end of the first two-path synthesizer serving as the last stage is connected with the output port through the two-section 1/4 wavelength impedance converter. 本实用新型公开了一种8路功率合成器，包括腔体、8个设置在腔体前侧的输入端口、1个设置在腔体后侧的输出端口和7个设置在腔体内的2路合成器；所述腔体包括外导体腔体和设置在外导体腔体内的传输线内导体；外导体腔体为双层结构，传输线内导体也为双层结构，作为最后一级的第一2路合成器的输出端通过双节1/4波长阻抗变换器与输出端口连接。