A FE Simulator for Electromagnetic Analysis of Slow-Wave Helicoidal Structures in Traveling Wave Tubes

S. Coco, A. Laudani, G. Pollicino, R. Dionisio, R. Martorana

Abstract


In this paper the authors present a Finite Element tool expressly conceived for the analysis of TWT helicoidal slow wave structure (SWS). The SWS is the region of interaction between the beam and the RF signal. Accurate analysis of the SWS is a difficult task due to its complex geometry. Moreover in order to achieve the design parameters a specific post-processing is required. Consequently specialized 3D numerical simulators are needed to carry out the design process. The FE tool expressly conceived to treat this kind of analysis includes a dedicated mesh generator, an electromagnetic solver, and a post-processing module. Analysis of typical helical SWS are also illustrated and discussed.


[DOI: 10.1685 / CSC06051] About DOI

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DOI: http://dx.doi.org/10.1685/




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