Improved Model for Beam–Wave Interaction With Ohmic Losses and Reflections of Sheet Beam Traveling Wave Tubes

Hanwen Tian,Ningjie Shi,Zhanliang Wang,Shaomeng Wang,Zhaoyun Duan,Huarong Gong,Zhigang Lu,Claudio Paoloni,Jinjun Feng,Yubin Gong

IEEE Transactions on Electron Devices（2021）

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摘要

In this article, an improved model for the beam–wave interaction of sheet beam in traveling wave tubes (TWTs) considering ohmic losses and reflections is presented. The ohmic losses are obtained by field analysis and equivalent method. The space charge magnetic field is derived from the active Helmholtz’s equation. An algorithm to obtain the S-matrix by the equivalent circuit method is presented. ...

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关键词

Metals,Blades,Magnetic circuits,Solid modeling,Harmonic analysis,Space charge,Integrated circuit modeling

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