Abstract
We present the results of experimental studies of controlling the spectrum and Q-factors of modes in an open resonator with a conducting cylindrical insert. The phenomenon of an increase in the diffraction Q-factor is experimentally observed for the fundamental TEM00q mode for two resonant diameters of the conducting cylindrical insert located inside the open resonator. The features of excitation of modes in an open resonator with smooth cylindrical finite-length mirrors and in an open resonator with cutoff bevels at the mirror edges are studied. Prospects for using open resonators with conducting inserts in quasi-optical devices in the millimeter-wave range are discussed.
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Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Radiofizika, Vol. 48, No. 8, pp. 684–691, August 2005.
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Melezhik, P.N., Miroshnichenko, V.S. & Senkevich, Y.B. Open Resonators with Conducting Cylindrical Inserts. 2. Resonators with Finite-Length Mirrors. Radiophys Quantum Electron 48, 607–613 (2005). https://doi.org/10.1007/s11141-005-0105-7
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DOI: https://doi.org/10.1007/s11141-005-0105-7