Progress on Fabrication and Testing of the Omniguide Traveling-Wave Tube Structures

Abstract

We have designed, fabricated and tested with low power a novel W-band traveling-wave tube (TWT) structure based on a slow-wave cylindrically-symmetric photonic band gap (PBG) structure, or an "omniguide". PBG TWT structures have great potential for very large bandwidth and linear dispersion. The omniguide structure was designed and fabricated with silica dielectric with a copper harness. Cold test results were found to be in excellent agreement with the design. A band-width of more than 10 per cent was demonstrated. This structure is designed to generate millimeterwave rf when driven by a 2-A, 120-kV electron beam.

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 2008
Accession Number
ADA493274

Entities

People

  • Bruce E. Carlsten
  • Evgenya I. Smirnova
  • Lawrence M. Earley

Organizations

  • Los Alamos National Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Amplifiers
  • Band Gaps
  • Bandwidth
  • Dielectrics
  • Dispersion Relations
  • Electron Beams
  • Electron Tubes
  • Energy Bands
  • Fabrication
  • Frequency
  • Materials
  • Microwave Tubes
  • Traveling Wave Tubes
  • Traveling Waves
  • W Band
  • Wave Power
  • Waves

Fields of Study

  • Physics

Readers

  • Electronics Engineering
  • Quantum Dot Semiconductor Device Photonics and Graphene Optoelectronic Materials and THz Physics.

Technology Areas

  • Directed Energy
  • Microelectronics