Diffraction of H 0m and E 0m modes by a system of axially symmetric discontinuities in a coaxial circuit

Abstract

Diffraction of axially symmetric H0m and E0m modes by a system of annular slots in the hollow inner conductor of a coaxial waveguide is considered. The space inside a slot and between the slots is filled with a dielectric. Diffraction of H0m and E0m modes by the end of a semiinfinite circular waveguide placed coaxially in a circular waveguide of larger diameter is solved as the key problem. The obtained solution is used in the analysis of structures with a finite number of equispaced discontinuities. The solution is obtained with the operator approach. Dependences of the reflection coefficient of this structure on the slot width and the spacing of discontinuities are analyzed.