RT Journal Article ID 60e30fc90368faa0 A1 Barannik, A. A. A1 Prokopenko, Yu. V. A1 Smirnova, T.A. A1 Filippov, Yu. F. A1 Cherpak, Nikolay T. T1 A Quasi-Optical Dielectric Ring-Resonator With Conducting Endplates JF Telecommunications and Radio Engineering JO TRE YR 2003 FD 2004-08-18 VO 60 IS 7-9 OP 7 AB The characteristic equation for complex frequencies of a two-layered (along radius) quasi-optical dielectric resonator with conducting endplates has been obtained. In a particular case of an inner hole in the dielectric cylinder, the experimental dependences of the resonator eigen frequencies on the radius of the hole are given for the eight-millimeter wave band. The frequency spectrum evolution of "whispering gallery" waves in the spectrum of a dielectric ring-waveguide is shown. A good coincidence of theoretical and experimental data is obtained for EH- and HE-oscillations in a teflon resonator. PB Begell House LK https://www.dl.begellhouse.com/journals/0632a9d54950b268,2425ad9d2b5152a7,60e30fc90368faa0.html