Wave transformation in smoothly nonregular rectangular waveguide with local degeneracy and longitudinally gyrotropic filling

Abstract

In the present work we consider local coupling of and TE/sub 2m+l/ and TE/sub 0.2n+1/ modes propagating in a rectangular waveguide formed by the surfaces x=/spl plusmn/R(/spl beta/z) and y=/spl plusmn/L(/spl beta/z) filled by an homogeneous longitudinally gyrotropic medium. Formulas obtained can be used for designing electrically controlled nonreciprocal polarizers and mode transformers.