Analysis of waveguide discontinuities with fem based on weak form of Helmholtz equations

Abstract

A flexible numerical analysis method based on the weak form of the Helmholtz equations is introduced to analyze waveguide discontinuities problems in this paper. Several waveguide discontinuities of three dimensions and two dimensions such as dielectric loaded waveguide; waveguide T- junction and power divider are analyzed. Calculation results are presented and agree well with the experimental results and numerical results from other method in literatures.