High-efficiency relativistic backward wave oscillator: theory and design

High-efficiency relativistic backward wave oscillator: theory and design

Backward wave oscillators (BWOs) driven by high-current relativistic electron beams are capable of producing high-power coherent radiation in the centimeter and millimeter wavelength regions. However, the efficiency of these devices is usually limited to 15-20% when a homogeneous slow-wave structure...

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Veröffentlicht in:IEEE Transactions on Plasma Science 1996-06, Vol.24 (3), p.843-851
Hauptverfasser: Levush, B., Antonsen, T.M., Vlasov, A.N., Nusinovich, G.S., Miller, S.M., Carmel, Y., Granatstein, V.L., Destler, W.W., Bromborsky, A., Schlesiger, C., Abe, D.K., Ludeking, L.
Format: Artikel
Sprache:eng
Schlagworte:
Acceleration
BACKWARD WAVE TUBES
DESIGN
EFFICIENCY
Electromagnetic scattering
Electron beams
ENGINEERING NOT INCLUDED IN OTHER CATEGORIES
Laboratories
Magnetic analysis
Magnetic field measurement
Magnetic fields
MATHEMATICAL MODELS
Millimeter wave technology
Oscillators
Radio frequency
RELATIVISTIC RANGE
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Beschreibung
Zusammenfassung:Backward wave oscillators (BWOs) driven by high-current relativistic electron beams are capable of producing high-power coherent radiation in the centimeter and millimeter wavelength regions. However, the efficiency of these devices is usually limited to 15-20% when a homogeneous slow-wave structure is used. Utilizing a two-section slow-wave structure, where the spatial period of the second section is larger than that of the first section, a BWO efficiency of greater than 50% was calculated. A conceptual design of a high-efficiency S-band BWO driven by a 500-kV 5-kA electron beam has been developed and analyzed.
ISSN:0093-3813
1939-9375
DOI:10.1109/27.533087