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Increasing the Q-factor of thin planar dielectric resonator with whispering gallery modes
International Journal of Microwave and Wireless Technologies ( IF 0.703 ) Pub Date : 2020-05-13 , DOI: 10.1017/s1759078720000525
A. E. Kogut; M. T. Islam; E. A. Kogut; Z. E. Eremenko; R. S. Dolia

The spectral and energy characteristics of the tunable thin planar dielectric resonator with the movable metal mirror are researched. It is found that the high-Q HE-polarized whispering gallery modes (WGMs) are effectively excited in such a resonator by the dielectric waveguide. A mode set of the tunable thin planar dielectric resonator depends on the presence of an air gap in its design. Changing the height of the air gap affects the energy characteristics of the tunable thin planar dielectric resonators (DR). Shifting the resonant fields of WGMs from the dielectric disk to the air gap is the reason for this effect. It is shown that at certain heights of the air gap, increasing the unloaded Q-factor of the tunable thin planar DR and improving the excitation efficiency of WGMs in it is achieved.
更新日期:2020-05-13

 

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