Small-sized body influence on the quality factor increasing of quasioptical open resonator

The results of an experimental study of electromagnetic waves scattering are described for small electric size bodies in the long-focus open resonator, whose quasioptical approximations are satisfied. It is shown that the effect of the Q factor increase is characteristic for such resonators, and for scatterers, not only spherical, but also of other geometrical forms whose sizes are small in comparison with a wavelength.