|Generate QR code
Open Access
Subscription Access
Method for measuring the Q-factor of miniature open dielectric resonators at ultrahigh frequencies
https://doi.org/10.32446/0368-1025it.2021-6-29-36
Abstract
A simple algorithm for reliably determining the Q-factor of an open dielectric resonator made of a material with a tgδ less than 0.0001 in the shielded region is presented, based on measuring the parameters of an electromagnetically coupled system of bulk metal and open dielectric resonators. The analytical substantiation of the considered method for determining the Q-factor of an open dielectric resonator in electrodynamic and electrotechnical representations is carried out. The variants of the influence of the metal volume on the effective Q-factor of an open dielectric resonator depending on its electrophysical characteristics are considered. The factors affecting the effective Q-factor of an open dielectric resonator obtained using this measurement method are evaluated, and the range of expected measurement errors is shown. The advantage of the method for determining the Q-factor of an open dielectric resonator is the high accuracy of the obtained analytical ratios for determining the Q-factor, the absence of increased requirements for the accuracy of the measurement sections and the quality of the internal surfaces of the metal resonator, the simplicity of the measurement process, based on the use of ordinary equipment and element base.
About the Authors
V. M. Gevorkyan
National Research University “Moscow Power Engineering Institute”
Russian Federation
Russian Federation
Vladimir M. Gevorkyan
Moscow
Y. A. Kazantsev
National Research University “Moscow Power Engineering Institute”
Russian Federation
Russian Federation
Yury A. Kazantsev
Moscow
A. V. Shutov
National Research University “Moscow Power Engineering Institute”
Russian Federation
Russian Federation
Aleksandr V. Shutov
Moscow
References
1. Nenasheva E. A., Jelektronnaja promyshlennost’, 2014, no. 2, pp. 84–91. (In Russ.)
2. Redozubov S. S., Extented abstract of candidate’s dissertation in Technical Sciences (JSC “Research Institute” Girikond”, St. Petersburg, 2015).
3. Kolomin V. M., Rybkin V. N., Iovdal’skij V. A., Sokolov I. A., Dijelektricheskie rezonatory dlja izdelij jelektronnoj tehniki SVChdiapazona [Dielectric resonators for microwave electronics products], Moscow, KURS, 2021, 150 p. (In Russ.)
4. Aleksejchik L. V., Gevorkjan V. M., Kazancev Ju. A., Krajushkin V. V., Jelektronnaja tehnika, Jelektronika SVCh, 1979, no. 8, pp. 15–27. (In Russ.)
5. Zhou L., Yin W. Y., Wang J., Wu L. S., Dielectric resonators with high q-factor for tunable low phase noise oscillators, IEEE Trans. on CPMT, 2013, vol. 3, no. 6, pp. 1008–1015.
6. Pracjuk B. B., Prokopenko Ju. V., Poplavko Ju. M. Koeffi cient svyazi sostavnogo dielektricheskogo rezonatora s pryamougol’nym volnovodom, Jelektronika i svjaz’, 2011, no. 3, pp. 60−63. (In Russ.)
7. Egorov V. N., Harakteristiki rezonatorov sverhvysokih chastot s nerezonansnym prosachivaniem moshchnosti, Izvestija vuzov, Radiofi zika, 2010, vol. 53, no. 8, pp. 493–503. (In Russ.)
8. Davidovich M. V., Dielektricheskie rezonatory: integral’nye i integro-diff erencial’nye uravneniya, Izvestija Saratovskogo universiteta, 2008, vol. 8 ser. Fizika, no. 1, pp. 3–14. (In Russ.)
9. Gevorkjan V. M., Kazancev Ju. A., Shutov A. V., Dobrotnost’ miniatyurnogo dielektricheskogo rezonatora, svyazannogo s polym metallicheskim rezonatorom SVCH, Jelektrotehnika, jelektrotehnologii, jelektrotehnicheskie materialy i komponenty, Proceedings of the XVII International Scientifi c and Technical Conference, Moscow, Russia, November 27, 2020, Moscow, Znak Publ., 2020, pp. 246–254. (In Russ.)
10. Nikol’skij V. V., Nikol’skaja T. I., Jelektrodinamika i rasprostranenie radiovoln [Electrodynamics and radio wave propagation], Moscow, URSS Publ., 2017, 544 p. (In Russ.)
11. Popov V. P., Osnovy teorii cepej [Fundamentals of circuit theory], Moscow, Vysshaya shkola Publ., 2003, 575 p. (In Russ.)
12. Il’chenko M. E., Trubin A. A., Jelektrodinamika dijelektricheskih rezonatorov [Electrodynamics of dielectric resonators], Kiev, Naukova dumka Publ., 2004, 265 p. (In Russ.)
13. Jerome L. Altman., Microwave Circuits, Princeton, N. J., Van Nostrand, 1964, 462 p.
14. Vladimir M. Gevorkyan, Yuri A. Kazantsev, Low noise oscillator based on a conventional dielectric resonator, Microwave Journal, 2020, vol. 63, no. 10, pp. 86–96.
15. Michael Hiebel, Fundamentals of Vector Network Analysis, Rohde & Schwarz, 2008, 419 p.
Review
For citations:
Gevorkyan V.M., Kazantsev Y.A., Shutov A.V. Method for measuring the Q-factor of miniature open dielectric resonators at ultrahigh frequencies. Izmeritel`naya Tekhnika. 2021;(6):29-36. (In Russ.) https://doi.org/10.32446/0368-1025it.2021-6-29-36
Views:
172
Email this article 