Dyadic Green's Function for a Right/Left-Handed Rectangular Waveguide

The electric scalar and dyadic magnetic potential Green's functions for a rectangular waveguide with dielectric-filled corrugations are derived. Interestingly, the expressions of the Green's functions components can be decomposed into terms that represent conventional waveguide modes and others that represent hybrid TE
^x
modes. The application of the derived Green's function to analyze finite sections of the left-handed waveguide is discussed