Excitation of spherical dielectric resonator by ring periodical current

Now an attention is given to spherical dielectric resonator with a whispering gallery modes that have large values of the polar n and azimuthal m indices.The paper object is the electrodynamical study of forced modes in spherical dielectric resonator that is excited by an azimuthally periodical electrical current flowed along circle in equatorial plane of sphere. In this paper, a spherical dielectric resonator with a radius r_ο is considered.