Computer Simulation of a 5.7GHz, 110kW Transit-Time Oscillator |
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| Authors: | K G Kostov and J J Barroso |
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| Institution: | (1) Department of General Physics, Sofia University, 5 J. Bourchier Blvd, Sofia, 1126, Bulgaria;(2) Associated Plasma Laboratory, National Institute for Space Research, INPE, P.O. Box 515, 12227-970 São José dos Campos, SP, Brazil |
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| Abstract: | A high-power transit-time oscillator producing 110kW at 5.7GHz in the TM010 cavity mode is described. The device comprises a temperature-limited diode electron gun operating at 40A in the range from 28kV to 35kV and an intermediate coaxial cavity from which the microwave power is extracted through a TEM coaxial guide. The diode serves also as a resonant cavity, where electromagnetic oscillations are grown from noise. The effect of the applied voltage on both the output microwave power and the instability saturation time has been investigated leading to an optimal diode voltage of 33kV. |
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| Keywords: | monotron transit-time effect particle simulation |
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