Hybrid Wideband Staircase Filters in Rectangular Waveguide With Enhanced Out-of-Band Response

The objective of this article is to describe the design a new family wideband filters in rectangular waveguide based on hybrid couplings and staircase configuration. use E-plane T-junctions folded structures also discussed, order enhance out-of-band response selectivity filter with respect current state art. several prototypes discussed detail, including manufacturing sensitivity high-power analysis. Finally, simulations measurements for an eight-pole prototype are compared, showing very good agreement, thereby fully validating both procedure topology that we propose.