Inductive waveguide iris for adaptable tuning

摘要

An inductive waveguide iris for adaptable tuning is disclosed. The inductive waveguide iris has a predetermined shaped cross-section to insert a tuning screw inside thereof. Also, the inductive waveguide iris has an asymmetric structure, or has an embossed portion or an intaglio portion while having variable electric characteristics according to a height and a width of the iris, a distance from a waveguide wall, a height and a width of the embossed portion or a height and a width of the intaglio portion. The disclosed waveguide iris provides similar electric characteristics compared to a symmetric iris and sufficient space for a tuning screw.