Peculiarities of Backward-Wave Amplification by Relativistic High-Current Electron Beams

Microwave amplification in relativistic backward wave oscillator operating below its self-excitation threshold is considered. The conditions that allow to achieve high gain provided with stable operation of the backward wave amplifier (BWA) were found. Several schemes of use of the relativistic BWA...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Veröffentlicht in:	IEEE transactions on plasma science 2010-06, Vol.38 (6), p.1285-1291
Hauptverfasser:	Abubakirov, Edward B, Konyushkov, Andrey P
Format:	Artikel
Sprache:	eng
Schlagworte:	Amplification Amplifiers Backward waves Backward-wave amplifier (BWA) backward-wave oscillator (BWO) Efficiency Electromagnetic modeling Electromagnetic scattering Electron beams Electron emission Electrons Explosions Fluctuations Gain hard excitation High gain High power amplifiers Microwave oscillators Microwaves Noise levels Operational amplifiers Oscillators Plasma Receivers & amplifiers regenerative amplification sectioned amplifiers shot noise
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	Microwave amplification in relativistic backward wave oscillator operating below its self-excitation threshold is considered. The conditions that allow to achieve high gain provided with stable operation of the backward wave amplifier (BWA) were found. Several schemes of use of the relativistic BWA providing high power microwave amplification were studied. It is shown that employing a BWA in regenerative amplification regime allows to obtain more than 40 dB gain with efficiency over 20%.
ISSN:	0093-3813 1939-9375
DOI:	10.1109/TPS.2010.2043120