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DIFFRACTION RADIATION OSCILLATOR WITH FREQUENCY TUNING ON MUTUAL COUPLED MODES IN AN OPEN RESONANT SYSTEM

By I. O. Kovalov, V. S. Miroshnichenko, and Y. B. Senkevich

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Abstract:
The results of experimental research and development of the diffraction radiation oscillator with a periodic structure in form of a reflective double comb and with frequency tuning on mutual coupled modes in its open resonant system were presented. As an operating mode we chose the mutual coupled modes TEM002 → TEM101, which arise in the open resonant system with the shift between mirrors symmetry planes. To analyse its features, a rigorous electrodynamical 2-D model of the open resonant system was used, and the optimal shift width was established. As a result, the operation on the mutual coupled modes allowed to extend the frequency tuning range without failures in output power and to exclude the influence of higher-order modes (TEM20q, TEM30q etc.) on the output characteristics of the oscillator. The research has been carried out in Ka band.

Citation:
I. O. Kovalov, V. S. Miroshnichenko, and Y. B. Senkevich, "Diffraction Radiation Oscillator with Frequency Tuning on Mutual Coupled Modes in an Open Resonant System," Progress In Electromagnetics Research C, Vol. 87, 1-11, 2018.
doi:10.2528/PIERC18062101

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