%0 Journal Article %A Bilous, R. I. %A Martynyuk, S. P. %A Motornenko, A. P. %A Skuratovskiy, I. G. %D 2015 %I Begell House %K waveguide-dielectric resonator, evanescent waveguide, eigen frequency and Q-factor %N 16 %P 1427-1432 %R 10.1615/TelecomRadEng.v74.i16.20 %T PROPERTIES OF THE TUNABLE WAVEGUIDE-DIELECTRIC RESONATOR WITH THE INCREASED Q-FACTOR AT THE MILLIMETER-WAVE BAND %U https://www.dl.begellhouse.com/journals/0632a9d54950b268,35e91ba649d85d3c,38c8393213950e8c.html %V 74 %X The resonance structures serve as the basis for many electronic devices. Therefore the creation of the effective tunable resonator is the actual and important problem. Using of the waveguide-dielectric resonator insures opportunity for the mechanical frequency tuning over a wide range but at the same time the Q-factor is changed. Recent investigations suggested that the decrease of the unloaded Q-factor of the tuning waveguide-dielectric resonator in the section of the circular cut-off waveguide can be decreased by using the resonance short-circuit plunger calculated on the given frequency. The investigations have been conducted for the 3-cm waveband. This paper is devoted to investigation of the possibility to increase Q-factor of the resonator of the waveguide-dielectric type in the millimeter-wave band where influence of the contact imperfection between the plunger and waveguide walls is essential. As a result of the conducted investigations the Q-factor more than 2 000 within the entire tuning frequency band was obtained for the resonator made of the section of the circuit cut-off waveguide with the Teflon dielectric in the 8-mm waveband. %8 2016-01-21