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Triode generators on the basis of FE emitters

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7 Author(s)

Electron phase trajectories for high frequency Ku-band in a diode with a nanocrystalline graphite (NCG) field emitter are compared with one with a thermo-cathode. It is shown that the field electron (FE) cathode differs from the thermo-cathode and forms short electron bunches, which can be efficiently decelerated in an output cavity. The scheme and advantages of a triode generator with a FE cathode are described. 1-D analytical evaluation of output power for the triode generator is carried out. The conclusion is drawn that maximum output power strongly depends on current density, and rises up to 80 W for 15 A/cm2.

Published in:

Plasma Science, 2008. ICOPS 2008. IEEE 35th International Conference on

Date of Conference:

15-19 June 2008