Mechanism of microwave generation by virtual cathode oscillation
- Laboratory of Beam Technology and Department of Electrical Engineering, Nagaoka University of Technology, Nagaoka, Niigata 940-21 (Japan)
A simple model is developed to describe the virtual cathode oscillation. With this model, it is found that the frequency dependence of the microwave power gain is determined by the phase relation between the oscillating electric field and the modulated electron beam current. Analytical expressions are given for the frequency dependence of the gain and for estimation of the maximum efficiency of microwave energy extraction from the electron beam. {copyright} {ital 1995} {ital American} {ital Institute} {ital of} {ital Physics}.
- OSTI ID:
- 165037
- Journal Information:
- Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 3 Vol. 2; ISSN PHPAEN; ISSN 1070-664X
- Country of Publication:
- United States
- Language:
- English
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