Multipactor radiation analysis within a waveguide region based on a frequency-domain representation of the dynamics of charged particles

  • B. Gimeno /
  • E. Sorolla /
  • S. Anza /
  • C. Vicente /
  • J. Gil /
  • A. M. Pérez /
  • V. E. Boria /
  • F. J. Pérez-Soler /
  • F. Quesada /
  • A. álvarez /
  • D. Raboso
Journal ar
Physical Review E - Statistical, Nonlinear, and Soft Matter Physics
  • Volumen: 79
  • Número: 4
  • Fecha: 01 April 2009
  • ISSN: 15393755 15502376
  • Source Type: Journal
  • DOI: 10.1103/PhysRevE.79.046604
  • Document Type: Article
A technique for the accurate computation of the electromagnetic fields radiated by a charged particle moving within a parallel-plate waveguide is presented. Based on a transformation of the time-varying current density of the particle into a time-harmonic current density, this technique allows the evaluation of the radiated electromagnetic fields both in the frequency and time domains, as well as in the near- and far-field regions. For this purpose, several accelerated versions of the parallel-plate Green's function in the frequency domain have been considered. The theory has been successfully applied to the multipactor discharge occurring within a two metal-plates region. The proposed formulation has been tested with a particle-in-cell code based on the finite-difference time-domain method, obtaining good agreement. © 2009 The American Physical Society.

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