Cylindrical Cavity with Distributed Longitudinal Corrugations for Second-Harmonic Gyrotrons

Metallic cavity with distributed longitudinal corrugations is proposed and studied for the use in a subterahertz second-harmonic gyrotron. The corrugated conducting walls are treated as a homogeneous surface with effective (averaged) anisotropic impedance. The theoretical study incorporates both sin...

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Bibliographic Details
Published in:Journal of infrared, millimeter and terahertz waves millimeter and terahertz waves, 2017-07, Vol.38 (7), p.838-852
Main Authors: Shcherbinin, Vitalii I., Tkachenko, Viktor I.
Format: Article
Language:English
Subjects:
Classical Electrodynamics
Coupled modes
Cyclotron resonance devices
Electrical Engineering
Electronics and Microelectronics
Engineering
Instrumentation
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Summary:Metallic cavity with distributed longitudinal corrugations is proposed and studied for the use in a subterahertz second-harmonic gyrotron. The corrugated conducting walls are treated as a homogeneous surface with effective (averaged) anisotropic impedance. The theoretical study incorporates both single-mode and coupled-mode approaches. It is shown that the distributed longitudinal corrugations provide several-fold increase in the Q -value of the operating mode with respect to that of the fundamental competing mode at a reasonable level of ohmic losses and mode conversion in the gyrotron cavity.
ISSN:1866-6892
1866-6906
DOI:10.1007/s10762-017-0386-x