A Bi-Frequency Linear Slow Wave Device

POSTER

Abstract

Bi-frequency sources are of interest to plasma processing, diagnostics, RF heating, and defense electronics. The recirculating planar magnetron [1] has been modified to produce two frequencies using two different slow wave structures in the planar regions. To highlight the coupling in the two frequencies, we consider here a linear TWT driven by a sheet beam inside such a structure. The cold tube dispersion is derived and is compared favorably with HFSS. The hot tube dispersion has also been derived, and is being compared with MAGIC simulations. Various nonlinear effects are explored, such as harmonic generation, parametric amplification, and intermodulation. \\[4pt] [1] R. M. Gilgenbach, et. al., IEEE Trans. Plasma Sci. 39, 908 (2011).

*This work was supported by ONR and AFOSR.

Authors

  • David Simon

    • Nuclear Eng. \& Rad. Sciences Dept., Univ of Michigan, Ann Arbor
    • Nuclear Eng. \& Rad. Sciences Department, University of Michigan
    • University of Michigan, Ann Arbor

  • Peng Zhang

    • Nuclear Eng. \& Rad. Sciences Department, University of Michigan
    • University of Michigan, Ann Arbor, MI
    • Univ of Michigan - Ann Arbor
    • University of Michigan, Ann Arbor

  • Y.Y. Lau

    • Nuclear Eng. \& Rad. Sciences Dept., Univ of Michigan, Ann Arbor
    • Nuclear Eng. \& Rad. Sciences Department, University of Michigan
    • Univ of Michigan - Ann Arbor
    • University of Michigan, Ann Arbor

  • Geoff Greening

    • Nuclear Eng. \& Rad. Sciences Dept., Univ of Michigan, Ann Arbor
    • Nuclear Eng. \& Rad. Sciences Department, University of Michigan
    • University of Michigan, Ann Arbor

  • Ronald Gilgenbach

    • The University of Michigan
    • Nuclear Eng. \& Rad. Sciences Dept., Univ of Michigan, Ann Arbor
    • Nuclear Eng. \& Rad. Sciences Department, University of Michigan
    • Univ of Michigan - Ann Arbor
    • The University of Michigan, Ann Arbor, MI 48109
    • University of Michigan, Ann Arbor

  • Brad Hoff

    • AFRL
    • Air Force Reseach Laboratory