Applied Physics Letters · 2013 · 14 citations · 7 references
High Conversion EfficiencyAeroacousticsElectrical EngineeringEngineeringBeat-waves GenerationIntense Electron BeamWave EnergyHigh-frequency DeviceRadiation GenerationRadio FrequencyMicrowave EngineeringHigh PowerSynchrotron RadiationVibration ControlFrequency ControlElectromagnetic Compatibility
A method for generating high power beating radio-frequency wave with high conversion efficiency is proposed. Based on Cherenkov radiation, two longitudinal resonant modes are excited simultaneously and interacted with intense electron beam synchronously. An experiment was carried out and beat-waves with an average power of about 2.3 GW, frequencies of 9.29 GHz and 10.31 GHz, and efficiency of about 40% were obtained. Through controlling the electron energy, the amplitude proportions of the two resonant modes are altered, and different beat-wave patterns are formed.
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Generation of gigawatt level beat waves
Guolin Li, Ting Shu, Jun Zhang et al. · Applied Physics Letters · 2010 · 33 citations
Observation of Chaotic Dynamics in a Powerful Backward-Wave Oscillator
N. S. Ginzburg, N. I. Zaitsev, E. V. Ilyakov et al. · Physical Review Letters · 2002 · 33 citations