General Study of Multipactor Between Curved Metal Surfaces

An analytical study of the electron trajectories between two opposite electrodes having curved surfaces is undertaken for the case when the electron transit time exceeds the RF period. The analysis is based on a statistical approach, which makes it possible to calculate the width of an electron bunch after a number of electron transits taking into account the spread of electron emission velocity, and the spatial nonuniformity of the RF field using the concept of the ponderomotive force. The results are used to estimate the multipactor threshold in terms of a value of the secondary emission yield, which is necessary to balance electron losses. Based on the model, it is predicted that multipactor is impossible inside the realistic configuration of a helix antenna where four electrodes are placed on the same cylindrical surface.

[1]  Dan Anderson,et al.  Simulations of multipactor thresholds in shielded microstrip lines , 2009 .

[2]  J. Puech,et al.  Multipactor in a coaxial transmission line. II. Particle-in-cell simulations , 2007 .

[3]  Miller,et al.  ON THE POTENTIAL WELL FOR CHARGED PARTICLES IN A HIGH FREQUENCY ELECTROMAGNETIC FIELD , 1958 .

[4]  L. Lapierre,et al.  Multipactor discharge on a dielectric surface: Statistical theory and simulation results , 2005 .

[5]  J. Puech,et al.  Simulations of the Multipactor Effect in Hollow Waveguides With Wedge-Shaped Cross Section , 2008, IEEE Transactions on Plasma Science.

[6]  Multipactor Effect Analysis and Design Rules for Wedge-Shaped Hollow Waveguides , 2010, IEEE Transactions on Electron Devices.

[7]  Jacques Sombrin,et al.  Hybrid resonant modes of two-sided multipactor and transition to the polyphase regime , 2002 .

[8]  Andrew G. Glen,et al.  APPL , 2001 .

[9]  B. Gimeno,et al.  Prediction of Multipactor Breakdown Thresholds in Coaxial Transmission Lines for Traveling, Standing, and Mixed Waves , 2009, IEEE Transactions on Plasma Science.

[10]  A. Sazontov,et al.  Effects of rf magnetic field and wave reflection on multipactor discharge on a dielectric , 2010 .

[11]  J. de Lara,et al.  Multipactor prediction for on-board spacecraft RF equipment with the MEST software tool , 2006, IEEE Transactions on Plasma Science.

[12]  J. Puech,et al.  Multipactor in a Waveguide Iris , 2007, IEEE Transactions on Plasma Science.

[13]  G. Dadashzadeh,et al.  Analysis of Multipactor RF Breakdown Thresholds in Elliptical Waveguides , 2011, IEEE Transactions on Electron Devices.

[14]  V. E. Boria,et al.  Multimodal Characterization of the Multipactor Effect in Microwave Waveguide Components , 2012, IEEE Microwave and Wireless Components Letters.

[15]  J. Puech,et al.  Microwave Multipactor Breakdown Between Two Cylinders , 2010, IEEE Transactions on Plasma Science.

[16]  J. Puech,et al.  Multipactor in a coaxial transmission line. I. Analytical study , 2007 .

[17]  Ming Yu,et al.  Power-handling capability for RF filters , 2007, IEEE Microwave Magazine.

[18]  S. Nagesh,et al.  Investigation of multipactor breakdown in communication satellite microwave co-axial systems , 2005 .

[19]  Dan Anderson,et al.  Conformal mapping analysis of multipactor breakdown in waveguide irises , 2008 .

[20]  Dan Anderson,et al.  Simulations of multipactor in circular waveguides , 2010 .

[21]  J. Puech,et al.  Simulations of Multipactor Breakdown Between Two Cylinders , 2011, IEEE Transactions on Plasma Science.

[22]  B. Gimeno,et al.  Multipactor Analysis in Circular Waveguides , 2009 .

[23]  B. Gimeno,et al.  Multipactor Susceptibility Charts for Ridge and Multiridge Waveguides , 2012, IEEE Transactions on Electron Devices.

[24]  John P. Verboncoeur,et al.  Time-dependent physics of a single-surface multipactor discharge , 2005 .

[25]  Dan Anderson,et al.  Multipactor in rectangular waveguides , 2007 .

[26]  B. Gimeno,et al.  Multipactor prediction in novel high-power low-pass filters with wide rejection band , 2009, 2009 European Microwave Conference (EuMC).

[27]  C. Vicente,et al.  Multipactor breakdown prediction in rectangular waveguide based components , 2005, IEEE MTT-S International Microwave Symposium Digest, 2005..