Fast Tuned Microwave Resonant Structures Based on Dielectric Resonator Reflected in Metallic Mirror

Author

Poplavko, Y.M. ; Ilchenko, M.E. ; Molchanov, V.I. ; Prokopenko, Y.V. ; Cho, N.I. ; You, Y.S.

Author_Institution

National Technical University of Ukraine, Peremogi Ave.37, 252056, Kiev, Ukraine. yuri@poplavko.kpi.kiev.ua

Volume

2

fYear

1998

fDate

Oct. 1998

Firstpage

190

Lastpage

195

Abstract

Constituent structures of 1/2 or 1/4 parts of dielectric resonators (DRs) reflected in the metallic mirrors were studied The structures were studied by electrodynamics in order to optimize constituent devices. By the controlling of air slot between parts of DRs and mirrors (which were waveguide walls), it is possible to change a central frequency of the constituent structure or its attenuation-frequency characteristic. Experimentally examined resonant devices show a high quality factor and allow to fast change of their resonant frequency (up to 20-25%). Based on these concepts, bandpass and bandstop frequency tuned filters were realized. Electronic adjustment of studied devices is possible as well, if the air slot of constituent resonant structure is shunted by the PIN diode.

Keywords

Centralized control; Dielectric devices; Electrodynamics; Frequency; Microwave devices; Mirrors; Q factor; Resonance; Waveguide components; Waveguide transitions;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference, 1998. 28th European

Conference_Location

Amsterdam, Netherlands

Type

conf

DOI

10.1109/EUMA.1998.338149

Filename

4139204