Time evolution of an electron discharge in a parallel-plate dielectric-loaded waveguide

Torregrosa, G.; Coves, Á.; Vicente, C.; Pérez, Antonio Martín; Gimeno, B.; Boria, Vicente E.

doi:10.1109/led.2006.877284

Cited by 48 publications

(22 citation statements)

References 9 publications

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“…2). We have compared this case with the results presented in [28]- [30], finding good agreement between them. Furthermore, it has also been noticed that in some particular cases the polarization electric field is able to turn the multipactor discharge off, as it was reported in [27] and [28].…”

Section: Simulationssupporting

confidence: 55%

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Multipactor Effect in a Parallel-Plate Waveguide Partially Filled With Magnetized Ferrite

Gonzalez-Iglesias

Gimeno

Boria

et al. 2014

IEEE Trans. Electron Devices

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Gimeno Martinez, B.; Boria Esbert, VE.; Gómez, Á.; Vegas, Á. (2014). Multipactor effect in a parallel-plate waveguide partially filled with magnetized ferrite. IEEE Transactions on Electron Devices. 61(7):Abstract-The aim of this paper is the analysis of the multipactor effect in a parallel-plate waveguide when a ferrite slab, transversally magnetized by a static magnetic field parallel to the waveguide walls, is present. Employing an in-house developed code, numerical simulations are performed in order to predict the multipactor RF voltage threshold in such a ferrite-loaded waveguide. Variations of the ferrite magnetization field strength and the ferrite slab height are analyzed. Effective electron trajectories are also shown for a better understanding of the breakdown phenomenon, finding different multipactor regimes.Index Terms-Multipactor effect, RF breakdown, parallelplate waveguide, ferrite components.

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Section: Simulationssupporting

confidence: 55%

“…The current multipactor simulation model includes the space charge effect, that takes into account the Coulombian interaction among electrons [26], [27], as well as the dielectric polarization effect of the ferrite that leads to the presence of a DC electric field, as reported in [27], [28].…”

Section: Theorymentioning

confidence: 99%

Multipactor Effect in a Parallel-Plate Waveguide Partially Filled With Magnetized Ferrite

Gonzalez-Iglesias

Gimeno

Boria

et al. 2014

IEEE Trans. Electron Devices

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“…The main difference between the responses observed in Figs. 4 and 7 is the fact that, in the latter case, the discharges eventually switch off by themselves (similarly to the behavior described in [14]), as a consequence of the dielectric presence.…”

Section: B Parallel-plate Silver-like Dielectric-loaded Waveguidementioning

confidence: 63%

“…of the authors [14] for a particular parallel-plate dielectricloaded waveguide, using the traditional single effective electron model, and without considering space-charge effects. In the specific case studied in that work, the dielectric layer charges negatively, allowing a negative static field to build up.…”

Section: Introductionmentioning

confidence: 99%

Multipactor Discharges in Parallel-Plate Dielectric-Loaded Waveguides Including Space-Charge Effects

Coves

Torregrosa‐Penalva

Vicente

et al. 2008

IEEE Trans. Electron Devices

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The objective of this paper is to study the time evolution of multipactor discharges in a parallel-plate dielectric-loaded waveguide. The electron discharge phenomena investigated in this paper include the effects of space charge, as well as the presence of time varying static fields. In order to perform the simulations presented in this paper, an approach considering simultaneously multiple effective electrons has been used. The results obtained demonstrate that multipactor discharges do turn off by themselves under certain circumstances when they occur in such dielectric-loaded structures.

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“…In the parallel-plate dielectric-loaded waveguide case, the electromagnetic fields have an analytical expression, and then such differential equation system can be analytically solved under certain approximations [4,5]. On the other side, in a partially dielectric-loaded rectangular waveguide, the electromagnetic fields must be numerically solved.…”

Section: Electron Dynamicsmentioning

confidence: 99%

Analysis of Multipactor Effect in Parallel-Plate and Rectangular Waveguides

et al. 2015

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In this work it is investigated, in the parallel-plate waveguide case, how the 1D, 2D or 3D motion of the electrons inside the waveguide can affect the generalized susceptibility diagrams, by means of a developed model capable of tracking the exact trajectory of multiple effective electrons which includes effects such as the spreading of the secondary electron departure kinetic energies or the dependence on elastic and inelastic electrons. On the other hand, a comparative study of the susceptibility charts in a parallel-plate and in its equivalent rectangular waveguide with the same height is performed, showing how the inhomogeneity of the electric field inside the waveguide modifies the multipactor region with respect to that predicted by the parallel-plate waveguide case. The results of this study are going to be extended to a partially dielectric-loaded rectangular waveguide, which is a problem of great interest in the space industry that has not yet been rigorously investigated in the literature.

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Time evolution of an electron discharge in a parallel-plate dielectric-loaded waveguide

Cited by 48 publications

References 9 publications

Multipactor Effect in a Parallel-Plate Waveguide Partially Filled With Magnetized Ferrite

Multipactor Effect in a Parallel-Plate Waveguide Partially Filled With Magnetized Ferrite

Multipactor Discharges in Parallel-Plate Dielectric-Loaded Waveguides Including Space-Charge Effects

Analysis of Multipactor Effect in Parallel-Plate and Rectangular Waveguides

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