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In this paper, a wideband high-power ridge gap waveguide (RGW) T junction power divider within the frequency band from 10 to 13.5 GHz is introduced. In this configuration, the air has the ridge gap to have maximum power handling capability. An excitation transition, from coaxial cable to the ridge gap waveguide, is introduced. The ridge gap waveguide power divider was fabricated using aluminum sheets to gain the advantage of low cost. The power divider has a wider bandwidth (30%) than the recent most successful RGW power divider along with the high handling power capability (more than 20 K Watts). The power divider design was validated using circuit and 3D full wave electromagnetic simulations and confirmed using experimental measurements with all agreements between results. It has been proved that the power divider attenuation has good matching (15 dB return loss) and equal 3 dB power division with less than 0.05 dB insertion loss. The power divider can be used as a feeder for many high-power application components.

A Wideband High-Power Ridge Gap Waveguide Power Divider for High-Power Division Sub-Systems Applications