Excitation of the high-Q-factor whispering gallery modes in the hemispherical dielectric resonator with the cylinder shield

Author

Kutuzov, V.V. ; Kharkovsky, S.N. ; Kogut, A.E.

Author_Institution

Inst. of Radiophys. & Electron., Acad. of Sci., Kharkov, Ukraine

fYear

1999

fDate

13-16 Sept. 1999

Firstpage

279

Lastpage

280

Abstract

A hollow metal cylinder with a semicircle in the base is used as the shield of a hemispherical dielectric resonator with whispering gallery (WG) modes. It is shown that the spectrum of the WG modes of this resonator is clearer than the spectrum of a similar resonator with a hemispherical shield. It is determined that the high-Q-factor WG modes are excited in the proposed resonator by the coupling slot on the mirror. Their fields are localized in the dielectric. The frequency dependence of the Q-factor value is measured. A good conformity of this experimental dependence with the analytic dependence is obtained in this paper.

Keywords

Q-factor; dielectric resonators; electromagnetic shielding; millimetre wave devices; Q-factor value; WG modes excitation; coupling slot; cylinder shield; frequency dependence; hemispherical dielectric resonator; high-Q-factor WG modes; hollow metal cylinder; whispering gallery modes; Dielectric measurements; Electromagnetic compatibility; Engine cylinders; Frequency dependence; Frequency measurement; Mirrors; Optical resonators; Physics; Q factor; Whispering gallery modes;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference, 1999. Microwave & Telecommunication Technology. 1999 9th International Crimean [In Russian with English abstracts]

Conference_Location

Sevastopol, Crimea, Ukraine

Print_ISBN

966-572-003-1

Type

conf

DOI

10.1109/CRMICO.1999.815236

Filename

815236