Analysis of radiating slots in a rectangular waveguide inhomogeneously loaded with a dielectric slab

Longitudinal and transverse radiating slots in the broad wall of a rectangular waveguide inhomogeneously loaded with a dielectric slab are analyzed. The formulation used involves the moment method solution of a pair of coupled integral equations containing the dyadic Green's function of the inhomogeneously loaded waveguide. Both an edge-condition for the electric field in the slot aperture and the correct form of the psi =constant waveguide mode are included in the analysis. Computed and measured results are compared to verify the theoretical analysis.<
>