ELECTROMAGNETIC MODELING OF A RESONANT COMMUTATOR

Nonsymmetric inhomogeneous step expansion in a plane-parallel waveguid e is studied. Its coupling with the regular channel is arranged throug h a closely spaced grating of metal strips on the substrate. Scatterin g characteristics are found from the solution of the electromagnetic p roblem by use of the double-side equivalent boundary conditions and th e method of moments. The influence of the resonant cavity parameters o n single-mode and multimode regimes of work is analyzed. (C) 1997 John Wiley & Sons, Inc.