Development of a 220 GHz 50 W sheet beam travelling wave tube amplifier

We report on progress in developing a travelling wave tube amplifier with significant gain and power at 220 GHz. This paper provides an overview of the program, describing fabrication and test of slow-wave structures with bandwidths exceeding 50 GHz centered at 220 GHz, the production of a sheet ele...

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Published inIEEE International Vacuum Electronics Conference pp. 225 - 226
Main Authors Field, Mark, Griffith, Zachary, Young, Adam, Hillman, Christopher, Brar, Berinder, Gamzina, Diana, Barchfield, Robert, Jinfeng Zhao, Spear, Alexander, Baig, Anisullah, Domier, Calvin, Barnett, Larry, Luhmann, Neville, Kimura, Takuji, Atkinson, John, Grant, Thomas, Goren, Yehuda, Reed, Thomas, Rodwell, Mark
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.04.2014
Subjects
Blades
Electron beams
Electron tubes
Gain
interaction structure
millimeter wave
mm-wave waveguide
Optical waveguides
Power generation
Radio frequency
sheet electron beam
slow wave structure
travelling wave tube
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Summary:We report on progress in developing a travelling wave tube amplifier with significant gain and power at 220 GHz. This paper provides an overview of the program, describing fabrication and test of slow-wave structures with bandwidths exceeding 50 GHz centered at 220 GHz, the production of a sheet electron beam, development of a solid state preamplifier delivering 50 mW to the tube with > 17 dB of gain and beam-wave simulation of the entire circuit leading to expected output powers of over 50 W. Two further papers from the group are also submitted to IVEC: from UC Davis describing the interaction structure fabrication and hot test, and from CPI describing the sheet electron beam, TWT design and beam - wave simulations. The tube is currently under test and results will be reported in this paper.
DOI:10.1109/IVEC.2014.6857572