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Coherent radiation of millimeter waves generated by an intense rotating annular relativistic electron beam

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Journal of Electronics (China)

Abstract

Properties of coherent radiation of millimeter waves generated by an intense rotating annular relativistic electron beam (E-layer) which is from a cusp magnetic field are investigated. The linearized Vlasov- Maxwell equations are used to analyze the interaction between E- layer and resonators of the magnetron. The dispersion relation is deduced and numerical calculation is made. The results show that the frequency of microwave radiation isω τ (ω ω =lΩ‖ where Ω‖ is the electron relativistic cyclotron frequency in the axial magnetic field;l is the azimuthal mode number,l=n+mN;N is the number of side resonators,n=0,1,2,…N/2,m is any integer). The growth rate of radiation is still large enough even ifl is large. It is good for generating a millimeter wave radiation at low axial magnetic field. If the modes can be controlled well, a tunable, high power millimeter wave device can be made.

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Authors and Affiliations

  1. Institute of Electronics, Academia Sinica, Bejing

    Yin Yuanzhao & Ying Runjie

Authors
  1. Yin Yuanzhao
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  2. Ying Runjie
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Yuanzhao, Y., Runjie, Y. Coherent radiation of millimeter waves generated by an intense rotating annular relativistic electron beam. J. of Electron.(China) 6, 85–93 (1989). https://doi.org/10.1007/BF02893176

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  • DOI: https://doi.org/10.1007/BF02893176

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