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13 - Klystrons

Published online by Cambridge University Press:  27 April 2018

Richard G. Carter
Richard G. Carter
Affiliation:
Lancaster University
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Summary

Gridded tubes use a control grid close to the cathode to modulate the electron current. In triodes and tetrodes the modulated current is collected by the anode and passes through the output resonant circuit. The amplification is class A if current flows at all times, class B is it flows for half the r.f. cycle and class C if less than half a cycle. The gain is reduced and the efficiency increases as the conduction time decreases. The design and construction of triodes and tetrodes and of amplifiers incorporating them is discussed. In an inductive output tube (IOT) a bunched electron beam is formed by a gridded electron gun. The bunched beam is passed through a gap in a cavity resonator which extracts r.f. power from the bunches. The design of IOTs and examples of their application are discussed.
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Microwave and RF Vacuum Electronic Power Sources , pp. 466 - 506
Publisher: Cambridge University Press
Print publication year: 2018

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  • Klystrons
  • Richard G. Carter, Lancaster University
  • Book: Microwave and RF Vacuum Electronic Power Sources
  • Online publication: 27 April 2018
  • Chapter DOI: https://doi.org/10.1017/9780511979231.013
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  • Klystrons
  • Richard G. Carter, Lancaster University
  • Book: Microwave and RF Vacuum Electronic Power Sources
  • Online publication: 27 April 2018
  • Chapter DOI: https://doi.org/10.1017/9780511979231.013
Available formats
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Save book to Google Drive

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  • Klystrons
  • Richard G. Carter, Lancaster University
  • Book: Microwave and RF Vacuum Electronic Power Sources
  • Online publication: 27 April 2018
  • Chapter DOI: https://doi.org/10.1017/9780511979231.013
Available formats
×