Multipactor Susceptibility Charts of a Parallel-Plate Dielectric-Loaded Waveguide

Torregrosa‐Penalva, Germán; Coves, Á.; Martínez, Benito Gimeno; Montero, I.; Vicente, C.; Boria, Vicente E.

doi:10.1109/ted.2010.2043182

Cited by 32 publications

(11 citation statements)

References 23 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: 52%

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: 52%

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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“…However, such susceptibility diagrams do not take into account important effects such as the dependence of these diagrams on elastic and inelastic electrons, as well as the 3D character of the motion of the electrons inside the waveguide, or the non-uniform nature of the electromagnetic fields in some particular cases. In the last years, the authors have developed a 1D model for studying the multipactor effect in a parallel-plate dielectric-loaded waveguide [4,5,6] including space charge effects. In this work we have extended this model to a 3D movement case, and a comparison of the obtained results with such 3D model to those provided by the 1D model has been performed in the empty parallel-plate waveguide case.…”

Section: Introductionmentioning

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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“…aging, outgassing) that should also be investigated. Until now, however, the multipactor effect of only very few dielectric materials has been analyzed using the very simple parallel plate model, where only 2D partially filled structures have been considered [22], [23]. In [24] the analysis has been performed taking also into account space-charge effects in the presence of time varying fields.…”

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Multipactor Effect Characterization of Dielectric Materials for Space Applications

Vague

Melgarejo

Guglielmi

et al. 2018

IEEE Trans. Microwave Theory Techn.

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The objective of this work is to advance the stateof-the-art in the characterization of the multipactor effect in dielectric materials. The materials studied are the most commonly used dielectrics in space applications, namely, Alumina, Rexolite, Rogers RT5870, Rohacell, Teflon and Ultem 1000. In this context, a new family of coaxial waveguide components, covering the Land S-bands, with a wideband, lowpass response has been designed, and six different prototypes have been specifically optimized and manufactured. The six prototypes have then been used to simulate and measure the multipactor breakdown susceptibility charts for the six dielectric materials investigated. Finally, the simulation results are compared with the results of the measurement campaign indicating good agreement.

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Multipactor Susceptibility Charts of a Parallel-Plate Dielectric-Loaded Waveguide

Cited by 32 publications

References 23 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

Analysis of Multipactor Effect in Parallel-Plate and Rectangular Waveguides

Multipactor Effect Characterization of Dielectric Materials for Space Applications

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