Parametric interaction of the electrons with the virtual cathode oscillations and external electromagnetic field in virtual cathode triode

Author

Grigoryev, V.P. ; Koval, T.V.

Author_Institution

Inst. of Nucl. Phys., Tomsk Polytech. Inst., Russia

fYear

1999

fDate

36373

Firstpage

202

Lastpage

205

Abstract

In a system with a VC the oscillation of the virtual cathode results in parametric excitation of oscillations of the electrons and in phase modulation of the electron flow. In this case, the width of the electron bunch is determined by the space charge field and by the anode transparency. The coherent radiation power depends on the number of electrons in resonance with the electromagnetic wave, on the system geometry, and on the Q-factor of the resonator. The emission efficiency is higher with a feedback or an external electromagnetic wave

Keywords

Q-factor; phase modulation; space charge; triodes; vircators; Q-factor; anode transparency; coherent radiation power; electron bunch; emission efficiency; external electromagnetic field; external electromagnetic wave; parametric interaction; phase modulation; space charge field; system geometry; virtual cathode oscillations; virtual cathode triode; Anodes; Cathodes; Electromagnetic radiation; Electromagnetic scattering; Electrons; Geometry; Phase modulation; Resonance; Space charge; Virtual colonoscopy;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronics and Radiophysics of Ultra-High Frequencies, 1999. International University Conference Proceedings

Conference_Location

St Petersburg

Print_ISBN

5-7422-0083-8

Type

conf

DOI

10.1109/UHF.1999.787916

Filename

787916