Broadband millimetre-wave passive spatial combiner based on coaxial waveguide
A simplified design approach for radial power combiners
Distributed active transformer-a new power-combining andimpedance-transformation technique
A Ka-band power amplifier based on the traveling-wave power-dividing/combining slotted-waveguide circuit
Broad-Band High-Power Amplifier Using Spatial Power-Combining Technique
A planar probe double ladder waveguide power divider