Highly efficient operation of space harmonic peniotron at cyclotron high harmonics

T. Ishihara, K. Sagae, N. Sato, H. Shimawaki, K. Yokoo

Research output: Contribution to journalArticlepeer-review

47 Citations (Scopus)


The paper describes the oscillation characteristics of cyclotron high-harmonic peniotrons based on space harmonic interactions in magnetron waveguide resonators. The experimental results showed extremely high electronic efficiencies of 75% for the cyclotron third harmonic and 6% for the tenth harmonic at 30 and 100 GHz, respectively. It was proven that almost all of the rotational energy of the beam is transferred to that of an electromagnetic wave and the efficiency of 75% at the cyclotron third harmonic corresponds to the effective efficiency of 92% by the energy recovery of the spent electrons at the depressed potential collector.

Original languageEnglish
Pages (from-to)798-802
Number of pages5
JournalIEEE Transactions on Electron Devices
Issue number4
Publication statusPublished - 1999
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering


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