Efficiency enhancement of a coaxial virtual cathode oscillator

Weihua Jiang, James Dickens, Magne Rristiansen

Research output: Contribution to journalArticlepeer-review

59 Scopus citations


The microwave field intensity around the virtual cathode oscillator was enhanced by using a microwave reflector in the output waveguide. The experimental results show that the microwave output power strongly depends on the position and geometry of the microwave reflector. The maximum microwave efficiency obtained was twice as large as that without field enhancement by the microwave reflector.

Original languageEnglish
Pages (from-to)1543-1544
Number of pages2
JournalIEEE Transactions on Plasma Science
Issue number5
StatePublished - 1999


  • Efficiency enhancement
  • Electron beam
  • High power microwaves
  • Microwave reflector


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