Representation of dyadic Green´s functions for a rectangular chirowaveguide using vector wave functions

An analytic solution of electromagnetic waves propagation in a rectangular chirowaveguide is represented in terms of spectral-domain dyadic Green´s functions (DGFs) in a general form. To formulate the DGFs, the method of the modified and normalized vector wave eigenfunction expansion and the principle of scattering superposition are used. The Dirichlet and Neumann conditions on the chirowaveguides conducting walls are considered. The electric and magnetic fields in the rectangular chirowaveguide due to a point dipole excitation orientated in the y/spl circ/-direction is derived and the longitudinal components of both electric and magnetic fields of a convenient mode for two distinct values of chirality are shown in the three-dimensional plots.