The specification describes a solid state microwave power combiner wherein a plurality of solid state power generating devices are mounted between adjacent conical support and housing structures. These structures define the microwave electrical circuits for these devices, and also as provide a waveguiding region for propagating energy from these devices to a common output line. Both the support and housing structures have their apexes integrally joined, respectively, to input and output conductors of a common output coaxial line used for coupling power out of the combiner. This novel geometrical configuration minimizes the electrical distance between the power generating devices and the coaxial output line, maximizes the packing density of the structure and optimizes the electrical performance of RF termination elements for these devices.
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