Design of a 1 kW output power Folded Waveguide TWT operating in Ka-band

Patrizia Livreri, Romina Badalamenti, Romina Badalamenti, Antonino Mistretta, Antonino Muratore, Vincenzo Zito, Rosario Martorana, Patrizia Livreri

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)


A Ka-band Serpentine Folded WaveguideTravelling Wave Tube (TWT) has been designed. The imposeddesign parameters values in terms of high power, high load,wide bandwidth, low weight, along with a structuremanufactured with planar technique or by means of a micromilling process, have been obtained. Small signal simulationshave been carried out with an in-house software for interactionimpedance evaluation. The commercial electromagneticsimulation code CST Suite has been used for dispersiondiagram prediction. Optimization of the one-dimensionalsoftware, normally used for large-signal simulation in coupledcavity TWTs (“Computer Program for Analysis of Coupled-cavityTravelling-wave-tube”, by Cosmic) has been carried out,reducing processing time and achieving results found ina close agreement compared with the ones obtained by theParticle In Cell suite of CST. In this paper, the design theory ofa 1 kW output power Ka-band Folded Waveguide TWT, willbe explained and predicted data for the dispersion diagramand interaction impedance as well as “cold test” results, ingood agreement with each other will be shown.
Original languageEnglish
Title of host publication2019 International Vacuum Electronics Conference (IVEC)
Number of pages2
Publication statusPublished - 2019

All Science Journal Classification (ASJC) codes

  • Instrumentation
  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials


Dive into the research topics of 'Design of a 1 kW output power Folded Waveguide TWT operating in Ka-band'. Together they form a unique fingerprint.

Cite this