Multipactor radiation analysis within a waveguide region based on a frequency-domain representation of the dynamics of charged particles.
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.
Gimeno
B
B
Departamento de Física Aplicada y Electromagnetismo - ICMUV, Universidad de Valencia, 46100 Burjasot (Valencia), Spain. benito.gimento@uv.es
Sorolla
E
E
Anza
S
S
Vicente
C
C
Gil
J
J
Pérez
A M
AM
Boria
V E
VE
Pérez-Soler
F J
FJ
Quesada
F
F
Alvarez
A
A
Raboso
D
D