Enhanced efficiency of C‐band sheet beam driven backward wave oscillator guided by periodic magnetic field | Zendy

Banerjee Tusharika S. | Zendy; Hadap Arti | Zendy; Saxena Ayush | Zendy; Reddy K. T. V. | Zendy

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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.

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