Broadband millimetre-wave passive spatial combiner based on coaxial waveguide
Broadband multilayer in-phase power divider
Broadband radial waveguide power amplifier using a spatial power combining technique
Design of a Broadband Eight-Way Coaxial Waveguide Power Combiner
A planar probe double ladder waveguide power divider
Design of Conical Transmission Line Power Combiners Using Tapered Line Matching Sections