A band-stop filter based on mode-selective corrugated substrate integrated waveguide

A novel band-stop filter based on mode-selective corrugated substrate integrated waveguide is proposed in this paper. In this design, variant U-shaped slots are etched on the top of mode-selective corrugated substrate integrated waveguide. Thus, band-stop feature is observed due to the resonance of U-shaped slots. What's more, the equivalent circuit and simulation results are consistent with each other.