Premium
Enhanced efficiency of C‐band sheet beam driven backward wave oscillator guided by periodic magnetic field
Author(s) -
Banerjee Tusharika S.,
Hadap Arti,
Saxena Ayush,
Reddy K. T. V.
Publication year - 2021
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.32634
Subject(s) - magnetic field , cathode ray , beam (structure) , physics , backward wave oscillator , field (mathematics) , power (physics) , electron , optics , computational physics , atomic physics , mathematics , quantum mechanics , pure mathematics
In this article we present the effect of periodic magnetic field on the efficiency of a sheet beam driven C‐band backward wave oscillator (operational in Megawatt power regime) through MAGIC3D PIC simulation. At 90 kV beam energy, 200 A beam current, and 0.6 T average magnetic field, our results depict an efficiency of nearly 70% due to improved electron beam confinement and electron bunching. A qualitative comparison is shown for efficiency through the same slow wave structure, guided by a uniform axial magnetic and the proposed periodic magnetic field. Efficiency enhancement of nearly 20% is observed in case of periodic magnetic field.