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Lagrangian simulator for Millimetre Wave TWT Based on Non-rotationally Symmetric Slow-Wave Structure

Research output: Contribution to journalJournal article

Published
<mark>Journal publication date</mark>09/2017
<mark>Journal</mark>Journal of Electromagnetic Waves and Applications
Issue number17
Volume31
Number of pages12
Pages (from-to)1902-1913
Publication statusPublished
Early online date18/08/17
Original languageEnglish

Abstract

A novel Lagrangian code for fast simulation of non-rotationally symmetric slow wave structure for millimetre wave TWTs is proposed. Novel slow wave structures suitable for fabrication at millimetre wave frequencies often have non-rotationally symmetric, differently from the helix that has a cylindrical symmetry. This prevents the use of conventional Lagrangian simulators valid for symmetric cylindrical symmetry. A modified Lagrangian simulator to simulate arbitrary symmetry SWS is proposed. The proposed simulator permits a very fast simulation of the large signal performance of the novel slow wave structures, as the Double Corrugated Waveguide.