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ISSN 2415-3400 (Online)
ISSN 1028-821X (Print)

PARTICULARITIES OF INTER-TYPE INTERACTION IN DISK QUASIOPTICAL DIELECTRIC RESONATOR IN THE CASE OF INTERNAL EXCITATION OF PARASITIC OSCILLATIONS

heading: 
MICROWAVE AND TERAHERTZ TECHNOLOGY
A. Kirichenko, Y, Golubnichaya, GV
Organization: 

O. Ya. Usikov Institute for Radiophysics and Electronics of the National Academy of Sciences of Ukraine
12, Proskura st., Kharkov, 61085, Ukraine
E-mail: kharkovs@ire.kharkov.ua
https://doi.org/10.15407/rej2015.04.087
Language: russian
Abstract: 

Disc dielectric resonators with whispering gallery modes are usually characterized by high Q-factor, nevertheless, dense spectrum of these oscillation is the factor which impedes their use as microwave elements. In particular, inter-type interaction of oscillations results in the distortions of amplitude-frequency characteristics. The investigation of particularities of this interaction allows one to understand conditions when they appear and find the possibilities to avoid them. The particularities of inter-type interaction in disk quasioptical resonator, excited at high azimuthal modes, in the case of internal excitation of parasitic oscillations in single disk are investigated experimentally. The influence of parameters of coupling element between the resonator and dielectric waveguide on the resonance characteristics is studied. It is shown, that this influence can be compensated by introducing the additional irregularity. Also it is demonstrated, that parameters of two-hump resonant characteristic strongly depend upon azimuthal position of this irregularity. Till the present time the intermode interaction was investigated only in the case of external excitation, using two disk dielectric resonators. The obtained results can be used as a method for selection of disc dielectric resonator oscillation spectrum.
Keywords: higher-order azimuthal oscillations, inter-types interaction, internal excitation, quasioptical dielectric resonator

Manuscript submitted 20.10.2015 г.
Radiofiz. elektron. 2015, 20(4): 87-91
Full text  (PDF)

References: 
  1. Shtenshleiger, V. B., 1955. Phenomena of wave interaction in electromagnetic resonators. Moscow: Gosudarstvennoe iz-vo oboron. prom. (in Russian).
  2. Vzyatyshev, V. F. and Rayevsky, G. P., 1987. Effects of azimuthal oscillations in dielectric disk resonators. Radiotekhnika i elektronika, 32(3), pp. 877–878 (in Russian).
  3. Kirichenko, A. Ya. and Kharkovsky, S. N., 1990. Interaction of oscillation in a quasi-optical dielectric resonator. Pis’ma Zh. Tekh. Fiz., 16(6), pp. 12–16 (in Russian).
  4. Rayevsky, G. P. and Vzyatyshev, V. F., 1990. Inter-type interaction in dielectric resonators with azimuthal oscillations. Izv. Vyssh. Uchebn. Zaved. Radioelektron., 33(10), pp. 66–68 (in Russian).
  5. Kirichenko, А. Ya. and Kharkovsky, S. N., 1991. Resonance rearrangement of azimuthal oscillation characteristics of open dielectric resonators. Izv. Vyssh. Uchebn. Zaved. Radioelektron., 34(10), pp. 74–78 (in Russian).
  6. Kirichenko, А. Ya. and Kharkovsky, S. N., 1994. Interference and interaction of azimuthal waves in a disk dielectric resonator. Radiotekhnika i elektronika, 39(5), pp. 710–717 (in Russian).
  7. Kuz’michov, I. K. and Shestopalov, V. P., 1996. Experimental detection and investigation of the critical Morse point of the dispersion equation for a diffraction radiation generator. Dok. Akad. Nauk UkrSSR. 12, pp. 90–95 (in Russian).