Far-field patterns of point sources operated in the presence of dielectric circular cylinders

The far field of point current sources of
a_{\rho}
,
a_{\phi}
, and
a_{z}
orientation either internal or external to a dielectric right-circular cylinder are discussed. Simplified general solutions are developed via plane-wave scattering in conjunction with the principle of reciprocity. Radiation patterns for axially oriented sources are illustrated. The results are found to embrace several prior special-condition solutions by others and to refute one previous analysis.