The compact band-pass filter on L-ridged rectangular waveguide

The problem of electrodynamic analysis and synthesis of band-pass filters on rectangular waveguides with complex L-shaped ridge is solved. The calculation of cutoff wave numbers and expressions for components of electromagnetic fields were carried out by the method of partial regions including the singularity of an electromagnetic field on metal edges. As a filter prototype the evanescent waveguides model and Chebyshev approximation are used.