A mode-matching analysis of transverse radiating slots in an H-plane dielectric-filled rectangular waveguide

A rigorous mode-matching analysis is presented for extracting the equivalent circuit parameters of transverse slots in the broadwall of a rectangular waveguide partially filled with an H-plane slab. Both self-impedance and mutual coupling between slots can be characterized over a wide frequency range. The proposed method is numerically efficient and can take the effect of wall thickness into account, and therefore can be very useful for designing large slot arrays.