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Design of Overmoded Interaction Circuit for 1-kW 95-GHz TWT

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5 Author(s)
Kory, C.L. ; Calabazas Creek Res., Inc., San Mateo, CA ; Read, Michael E. ; Ives, R.L. ; Booske, J.H.
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Advanced simulation tools were used to design major components for a 95-GHz traveling-wave tube (TWT) providing approximately 1-kW of average power. This output power would be challenging, if not impossible, using a fundamental mode circuit TWT design, because of beam-current density and thermal-mechanical-stability issues. We addressed these limitations using an overmoded interaction circuit. The program investigated the circuits' thermal and electrical performance, including the effect of multiple-propagating modes and spurious oscillations. We also completed the designs for the electron gun and periodic permanent magnet. The design results for the 1-kW 95-GHz TWT are promising.

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Electron Devices, IEEE Transactions on  (Volume:56 ,  Issue: 5 )