By the theory of Bethe-hole coupling, a new modified multi-hole directional coupler based on the ridged rectangular waveguide is proposed in this paper. Three kinds of coupling-hole configurations, ...

This paper presents the design and development of an 8-way 20kW co-axial radial power combiner (RPC) for high power S-band applications. The proposed 8-way in-phase RPC achieves a measured return loss ...