Green's functions for vertical current sources embedded in uniform waveguides or cavities filled with multilayered media

A model series representation of spatial-domain electric field Green's functions for arbitrarily oriented electric current sources embedded in shielded multilayer media is presented. The Green's functions associated with planar excitations are briefly recalled, and the method to compute them is generalized to vertical current sources, yielding new components of the Green's function necessary for the analysis of vertical metallizations embedded in waveguides or cavities.