Efficient 58-GHz relativistic orotron with combined mode selection

E. M. Totmeninov, I. V. Pegel, V. P. Tarakanov

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)


This article presents time-dependent numerical modeling of V-band relativistic orotron: a high-power microwave generator with a TM03 oscillation mode in an oversized (D/λ ∼ 2.7) electrodynamic structure and diffractive output in the TM02 mode. Single-mode operation of the oscillator is ensured by the cyclotron selection of the working axisymmetric mode, with simultaneous depression of competing non-axisymmetric modes by means of cutting longitudinal slits in the wall of the slow-wave structure. The simulated output microwave power is 350 MW with a power conversion efficiency of 31% when using a 3.6 kA, 310 keV electron beam transported in the 3.9 T magnetic field. The simulation employed 2.5D axisymmetric and 3D Cartesian versions of the KARAT code.

Original languageEnglish
Article number053106
JournalPhysics of Plasmas
Issue number5
Publication statusPublished - 1 May 2017

ASJC Scopus subject areas

  • Condensed Matter Physics

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