Me. Ilchenko et al., NATURAL OSCILLATIONS OF MULTILAYER METALL IC SHIELD SPHERICAL DIELECTRIC RESONATORS, Izvestia vyssih ucebnyh zavedenij. Radiofizika, 35(6-7), 1992, pp. 579-586
Characterstic equations and analytical relations for Q-factors have be
en obtained for a three-layer spherical dielectric resonator in a meta
llic shield. Dielectric layer effect on a Q-factors of dielectric reso
nators has been noted. The influence of metallic shield on a cave sphe
rical dielectric resonator spectrum has been studied.