Electrodynamic Analysis of Electromagnetic Hybrid Waves in a Ridged Waveguide

We consider an algorithm of calculating the characteristics of the fields of hybrid modes in waveguides with complicated cross sections. The presented algorithm makes it possible to allow for the specific features of the behavior of the electromagnetic-field components near the dielectric and metal ribs of the waveguide. The results of calculating the electrodynamic characteristics of the hybrid HE and EH modes in a Π-shaped waveguide with layered and piecewise-layered dielectric filling are reported. The tables of cutoff wave numbers are presented, and the structures of electromagnetic fields of hybrid modes are shown. The results obtained by using the method proposed and the numerical methods are compared.