Abstract
Based on an analysis of the equivalent circuit of a reflection open resonator (OR), we derive an expression for the efficiency of mode excitation in such a resonance system and compare the efficiency of excitation of the lowest OR mode by aperture and slot couplers. It is shown that the excitation efficiency of the same mode by each of the considered couplers is high for small diffraction losses and amounts to no less than 95%. To excite an OR with a large distance between the mirrors, it is expedient to use an aperture coupler ensuring a higher efficiency of excitation of the studied mode.
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Kuz'michev, I.K. Efficiency of Mode Excitation in an Open Resonator Connected to a Waveguide. Radiophysics and Quantum Electronics 46, 38–46 (2003). https://doi.org/10.1023/A:1023687012392
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DOI: https://doi.org/10.1023/A:1023687012392