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In this paper, design of the interaction circuit for a 95 GHz sheet-beam extended-interaction klystron (EIK) with uniform magnetic focusing is presented. Simulations with CST-3D PIC indicates peak RF output power of 10 kW is feasible with a 3.3 A, 19.5 kV beam. The beam shows good confinement without any beam interception.
Electromagnetic field analysis of a helical slow-wave structure was carried out following tape-helix model incorporating the effects of space-harmonic propagating modes and the effects of finite width of the tape. Using this analysis, RF loss in the structure due to the finite conductivities of the constituent materials was estimated. The analysis was validated against published results for a segment-less...
This paper describes the simulation of an axi-symmetric 2-stage depressed collector including the effects of secondary electrons using a 2D FDM based code and compares its efficacy against experimental results and 3D simulation using CST Particle Studio. The paper also demonstrates the 3D simulation of a tilted electric field (TEF) collector using CST Studio for arresting the secondary electron back-migration.
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