Prediction of Multipactor Breakdown Thresholds in Coaxial Transmission Lines for Traveling, Standing, and Mixed Waves

In this paper, we present a numerical model for predicting the multipactor breakdown effect in coaxial transmission lines. To validate this method, we have first compared our results with numerical data from other theoretical studies and with experimental measurements. Then, we have investigated the...

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Bibliographic Details
Published in:IEEE transactions on plasma science 2009-10, Vol.37 (10), p.2031-2040
Main Authors: Perez, A.M., Tienda, C., Vicente, C., Anza, S., Gil, J., Gimeno, B., Boria, V.E., Raboso, D.
Format: Article
Language:English
Subjects:
Amplitudes
and mixed wave (MW)
Attractors
Breakdown
breakdown threshold
Coaxial components
coaxial lines
Electric breakdown
Electric discharges
Electrons
Exact sciences and technology
Experiments
Gas insulated transmission lines
Low level
Mathematical models
multipactor
Physics
Physics of gases, plasmas and electric discharges
Physics of plasmas and electric discharges
Power transmission lines
Radio frequencies
Radio frequency
Radio frequency plasma
Space technology
standing wave (SW)
Superconducting microwave devices
Thresholds
Transmission line theory
Transmission lines
traveling wave (TW)
Validation studies
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Summary:In this paper, we present a numerical model for predicting the multipactor breakdown effect in coaxial transmission lines. To validate this method, we have first compared our results with numerical data from other theoretical studies and with experimental measurements. Then, we have investigated the multipactor phenomena in coaxial lines considering three kinds of RF signals: traveling, standing, and mixed waves. From this paper, we conclude that different breakdown thresholds are obtained for any of the considered RF excitations under high values of frequency times gap product. This effect is attributed to the existence of regions with zero (or very low levels) electric field amplitude in the propagation direction, where electrons are absorbed before the discharge occurs.
ISSN:0093-3813
1939-9375
DOI:10.1109/TPS.2009.2028428