TELECOMMUNICATIONS AND RADIO ENGINEERING - 2010 Vol. 69,
No 16 		 

 

 

 

FIELD DISTRIBUTION OF THE FORCED WHISPERING GALLERY MODE EXCITED IN QUASIOPTICAL DIELECTRIC CAVITY RESONATORS BY A COUPLING SLOT IN THE MIRROR

R.V. Golovashchenko, E.V. Goroshko, A.Ye. Kogut, & V.V. Kutuzov
A. Usikov Institute of Radio Physics and Electronics,
National Academy of Sciences of Ukraine
12, Academician Proskura St., Kharkiv 61085, Ukraine

Abstract
Results of experimental studying investigation into the spectral and power characteristics, as well as of the field distributions of the forced whispering gallery modes excited in open half-disk dielectric cavity resonators by a local coupling element in the form of a capacitive slot in a metal mirror of the resonator are presented. The results were obtained with the use of a computerized measuring bench. It is shown that the electrodynamic characteristics of the forced dielectric cavity resonators are influenced not only by the energy losses in the coupling element, but also by the radiation losses whose amount is dependent on the excitation conditions of the oscillations.
KEY WORDS: forced whispering gallery modes, open dielectric cavity resonators, coupling element, field intensity distributions of the oscillations, radiation losses of energy

References

  1. Il’chenko, M.E., Vzyatyshev, V.F., Gassanov, L.G. at al., (1989), Dielectric resonators, Radio and Svyaz, Moscow: 328 p. (in Russian).
  2. Ivanov, E.N., Karachev, A.A., and Tsarapkin, D.P., (1987), Improving the efficiency of excitation of disk dielectric resonators, Izv. VUZov. Radioelektronika. 30(10):68-69 (in Russian).
  3. Kogut, A.Ye. and Matyash, O.A., (2006), Excitation of whispering gallery modes in a half-disk dielectric resonator by a coupling slot in the mirror, Izv. VUZov. Radioelektronika. 49(2):10-16 (in Russian).
  4. Kogut, A.Ye. (2007), Influence of the conditions and techniques of excitation of a half-disk dielectric resonator on the characteristics of the whispering gallery mode oscillations, Izv. VUZov. Radioelektronika. 50(5):22-30 (in Russian).
  5. Ginzton, E.L., (1957), Microwave Measurements, McGraw-Hill Book Company, Inc. New York, - 515 p.
  6. Golovashchenko, R.V., Goroshko, Ye.V., and Varavin, A.V., (2006), Hardware-software complex for spectroscopic investigations at millimeter wavelengths, CryMiCo-06, Sevastopol, pp. 817-818 (in Russian)..
  7. Valitov, R.A., Dyubko, S.F., and Makarenko, B.I., (1984), Measurements at millimeter and submillimeter wavelengths: Methods and techniques, Radio and Svyaz’, Moscow: 296 p. (in Russian).
  8. Kharkovskiy, S.N., Kogut, A.Ye., and Kutuzov,A.Ye., (1997), Excitation of radial oscillations in quasi-optical dielectric resonant cavities with whispering gallery modes, Pisma v Zhurnal Tekhn. Fiziki. 23(15):25-29 (in Russian).
  9. Weinstein, L.A., (1966), Theory of diffraction and factorization method, Sov. Radio, Moscow: 431 p. (in Russian).


pages 1421-1427

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