Variable rule of resonant conductance of slot in wide side dimension adjustable slot-waveguide

The resonant conductance of the slot is variable with the changing of the broad wall dimension of the waveguide. In this paper, the variable rule of the resonant conductance of the slot in a wide side dimension adjustable slot-waveguide is studied, as well as the influence of the slot width, the cutting depth, and the duct thickness. Fitting equations are obtained by suitable theoretical model, and they can satisfy the requirement of engineering design. Besides, electric field radiation of waveguide slots varying with the dimension adjusting of the wide side wall is analyzed.