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Telecommunications and Radio Engineering
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ISSN Imprimir: 0040-2508
ISSN En Línea: 1943-6009

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Telecommunications and Radio Engineering

DOI: 10.1615/TelecomRadEng.v65.i4.10
pages 293-304

An Open Resonator with Two Conductive Cylindrical Insertions

P. N. Melezhik
A. Usikov Institute of Radio Physics and Electronics, National Academy of Sciences of Ukraine 12, Academician Proskura St., Kharkov 61085, Ukraine
V. S. Miroshnichenko
A.Ya. Usikov Institute for Radiophysics and Electronics of the National Academy of Sciences of Ukraine 12, Academician Proskura St., Kharkiv 61085, Ukraine


The properties of H-polarized oscillations in a 2D open resonator containing two conductive cylindrical insertions are analyzed. The effect of a 1.5 to 2 order of magnitude increase in the diffractional Q-factor for the fundamental mode has been detected and investigated, which can be produced by conductive insertions of a sufficiently large diameter to allocate and provide for cooling of active elements in the open resonant cavity. A possibility is shown for the open resonator with two conductive insertions to be adjusted over a wide frequency range, while retaining the fundamental mode. Results of the electromagnetic modeling are compared with measurements.

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