TE-mode solutions for dielectric slab center loaded ridged waveguide

Dielectric slab center loaded ridged waveguide has been analyzed to obtain TE sub 10 propagation characteristics for the losses case. The analysis was performed by solving for the lowest order resonance of the transverse wave component, using an equivalent transmission line circuit which models the height change at the ridge as an effective shunt susceptance. Calculated and measured data are compared; they show good agreement. The analysis should prove useful in designing transformers to match empty ridged waveguide to slab loaded rectangular waveguide components such as toroidal phase shifters.