ISSN 0869-6632 (Print)
ISSN 2542-1905 (Online)

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Novozhilova Y. V., Ryskin N. M., Chumakova M. M. Effect of reflection from remote load on mode competition in gyrotron with quasi­-optical mode convertor. Izvestiya VUZ. Applied Nonlinear Dynamics, 2012, vol. 20, iss. 6, pp. 136-147. DOI: 10.18500/0869-6632-2012-20-6-136-147

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Effect of reflection from remote load on mode competition in gyrotron with quasi­-optical mode convertor

Novozhilova Yulija Vladimirovna, Institute of Applied Physics of the Russian Academy of Sciences
Ryskin Nikita Mikhailovich, Saratov Branch of Kotel`nikov Institute of Radiophysics and Electronics of Russian Academy of Sciences
Chumakova Marija Mihajlovna, Saratov State University

In a gyrotron with quasi-optical mode convertor, apart from the fundamental mode, excitation of a mode with opposite azimuthal rotation of the field occurs due to the wave reflected from the remote load. Interaction of the two oppositely rotating modes is investigated by using the quasi-linear equation for slowly varying amplitudes. The developed theory allows explanation of the experimental results where periodic modulation of the transverse structure of gyrotron radiation partially reflected from a remote oscillating membrane was observed.

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