Moment Method Analysis of Rectangular Waveguide Disconti- nuities using Higher-Order Basis Functions

Abstract

Rectangular waveguide discontinuity analyses using the higher-order method of moments (MoM) are presented in this thesis. The discontinuities considered are of two types { rectangular win- dows in the transverse plane and slots on waveguide walls radiating into another waveguide with its axis normal to the rst (input) guide. For all the slot cases, two di erent terminations of the other end of the input waveguide { match and short { have been considered. The analy- sis is carried out by setting up the magnetic eld integral equations (MFIE) by invoking the equivalence principle.