  Harmonic generation in the scattered fields produced by a dielectric sphere
coated with a time-varying conductive shell is studied using a Mie theory
approach hybridized with conversion matrix methods. Analytic results are
derived for plane wave incidence as well as in a more general transition matrix
setting. An equivalent transmission line approach is also discussed. Numerical
examples validate the derived expressions through comparison with purely
numerical methods and convergence characteristics are explored. Several
additional examples illustrate unique trends in far- and near-field scattering.
