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Telecommunications and Radio Engineering
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ISSN Печать: 0040-2508
ISSN Онлайн: 1943-6009

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Telecommunications and Radio Engineering

DOI: 10.1615/TelecomRadEng.v74.i16.20
pages 1427-1432

PROPERTIES OF THE TUNABLE WAVEGUIDE-DIELECTRIC RESONATOR WITH THE INCREASED Q-FACTOR AT THE MILLIMETER-WAVE BAND

R. I. Bilous
A. Usikov Institute of Radio Physics and Electronics, National Academy of Sciences of Ukraine, 12, Academician Proscura St., Kharkov 61085
S. P. Martynyuk
A. Usikov Institute of Radio Physics and Electronics, National Academy of Sciences of Ukraine
A. P. Motornenko
A. Usikov Institute of Radio Physics and Electronics National Academy of Sciences of Ukraine
I. G. Skuratovskiy
A. Usikov Institute of Radio Physics and Electronics, National Academy of Sciences of Ukraine

Краткое описание

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.


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