ANALYSIS OF WAVE-GUIDE JUNCTION DISCONTINUITIES AND GAPS USING FINITE-ELEMENT METHOD

A Finite Element Method (FEM) is presented to determine reflection and transmission coefficients of rectangular waveguide junction discontin uities. H-, E-plane discontinuities in a concentric/nonconcentric rect angular waveguide junction are analyzed using the FEM procedure. Also, reflection and transmission coefficients due to presence of a gap bet ween two sections of a rectangular waveguide are determined using the FEM. The numerical results obtained using the FEM procedure are compar ed with results obtained using the Mode Matching Method (MMM) and with measured data.