Analysis of Multipactor Effect Using a Phase-Shift Keying Single-Carrier Digital Modulated Signal

Gonzalez-Iglesias, D.; Rodriguez, Maria Pilar Belloch; Belda, Oscar Monerris; Gimeno, B.; Boria, Vicente E.; Raboso, D.; Semenov, V. E.

doi:10.1109/ted.2013.2266275

Cited by 15 publications

(9 citation statements)

References 12 publications

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“…2πr s2 H , where N 1 and N 3 are the number of electrons at regions 1 and 3, respectively. Therefore, using Gauss's law the spacecharge field can be expressed as follows [15]:…”

Section: Monte Carlo Simulation Modelmentioning

confidence: 99%

“…Moreover, in order to simulate the actual motion of the free electron in detail, we consider the Coulomb repulsive force and the elastic loss of electron collision. Coulomb repulsion among electrons is modeled by means of a single electron sheet, following the same procedure proposed in [11,15]. We define an attenuation factor F loss to represent the loss of electron collision in the MATLAB code.…”

Section: Introductionmentioning

confidence: 99%

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Analysis of Multiplication Characteristics of Coaxial Waveguide Loaded Ceramic Under External Electric Field

Long¹,

Zhang²,

Wang³

et al. 2019

PIER M

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Multipacting is electron discharge that occurs in components operating in RF high-power electromagnetic fields. In this paper, we will study a new coaxial structure with a ceramic window. A similar structure is utilized in many high power devices for power transfer. Due to the multipactor effect, it will generate huge heat and cause damage to the window, ultimately affect the performance of microwave devices. In order to suppress the surface multipactor effect and improve the transmitting power, the application of an external DC bias is analyzed and simulated. A Monte Carlo algorithm is used to track the secondary electron trajectories and study the multipactor scenario on the surface of a ceramic window in a coaxial line by using 2-D particles distribution code. Since secondary electron multiplication needs to meet specific resonance conditions, an appropriate DC bias will generate a compensating trajectory and collision, which can suppress the secondary electron avalanche. The optimal value of this external bias voltage that will avoid the multipactor phenomenon in the coaxial line will be calculated by simulation in MATLAB.

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“…2πr s2 H , where N 1 and N 3 are the number of electrons at regions 1 and 3, respectively. Therefore, using Gauss's law the spacecharge field can be expressed as follows [15]:…”

Section: Monte Carlo Simulation Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Analysis of Multiplication Characteristics of Coaxial Waveguide Loaded Ceramic Under External Electric Field

Long¹,

Zhang²,

Wang³

et al. 2019

PIER M

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“…In order to obtain the numerical solution for our problem (a parallel plate waveguide partially filled with a ferrite layer), a multipactor simulator code based on the Monte-Carlo algorithm has been developed to compute the RF voltage threshold. The software code, similar to the one described in [22], employs the single effective electron model [23], which consists of tracking the individual trajectories of a certain number of effective electrons. Individual electron trajectories are computed by solving numerically its non-relativistic equation of motion derived from the Lorentz force…”

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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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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“…(13). The application of formulas (13), (15), and (16) yields different values for the breakdown voltage as a function of pulse length over field period. In each interval belonging to a given resonance order, the breakdown voltage is a certain constant.…”

Section: The 20 Gap Thresholdmentioning

confidence: 99%

“…It should be noted that complicated rf signals inside communication lines does not always lead to an increase in the multipactor threshold. Specifically a recent study [15] revealed that inside a relatively wide gap, a decrease in the multipactor threshold is possible in the case of digitally modulated signals. Such a decrease can be attributed to a very general phenomenon known as stochastic electron heating in microwave fields [16].…”

Section: Breakdown Voltage and Pulse Lengthmentioning

confidence: 99%

Multipactor breakdown in microwave pulses

Rasch¹,

Anderson²,

Semenov³

2013

J. Phys. D: Appl. Phys.

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A theoretical investigation is made of the effect of finite pulse length on the multipactor breakdown condition for microwave signals. The analysis considers the case of multipactor between two parallel metallic plates, using the classical resonance theory. It is found that decreasing pulse length tends to successively eliminate higher order resonance zones and lead to a "pulse hardening" of lower order modes where the multipactor-prone resonance zones shrink and the lower boundary breakdown field of the zones smoothly increases as the pulse becomes shorter, eventually to completely eliminate the multipactor effect for sufficiently short pulses.

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Analysis of Multipactor Effect Using a Phase-Shift Keying Single-Carrier Digital Modulated Signal

Cited by 15 publications

References 12 publications

Analysis of Multiplication Characteristics of Coaxial Waveguide Loaded Ceramic Under External Electric Field

Analysis of Multiplication Characteristics of Coaxial Waveguide Loaded Ceramic Under External Electric Field

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

Multipactor breakdown in microwave pulses

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