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Submillimeter backward wave oscillators

  • J. A. Dayton
  • V. O. Heinen
  • N. Stankiewicz
  • T. M. Wallett
Article

Abstract

NASA Lewis Research Center is engaged in a program to develop a series of backward wave oscillators (BWO's) for the frequency range 500 to 2000 GHz. Generically BWO's are electron beam traveling wave tubes operating in a dispersive regime in which the group velocity and the phase velocity of the induced electromagnetic wave are in opposite directions. The oscillation frequency of a BWO is controlled by the electron beam velocity (anode voltage).

Such tubes because of their frequency tunability, phase locking capability, and large bandwidth are ideal local oscillators for heterdyne receiver/spectrometers.

The design of the BWO's will be discussed with emphasis on the etched slow wave structure, zero compression electron beam, long life cathode, and moderate operating voltages.

Keywords

Electron Beam Slow Wave Wave Structure Operating Voltage Frequency Tunability 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Plenum Publishing Corporation 1987

Authors and Affiliations

  • J. A. Dayton
  • V. O. Heinen
  • N. Stankiewicz
  • T. M. Wallett

There are no affiliations available

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