VIRCATOR - ANALYTICAL AND NUMERICAL ANALYSIS AND OPTIMIZATION OF A VACUUM MICROWAVE HIGH POWER DEVICE
DOI:
https://doi.org/10.29121/granthaalayah.v6.i5.2018.1422Keywords:
Vircator, Microwaves, High Power, Numerical PrototypingAbstract [English]
Vircator is a vacuum microwave device characterised by a pulse working signal and high power. It is classified as a High-Power Microwave (HPM) device and often is a component of Electromagnetic Pulse (EMP) weapons and microwave power transmissions. The direct source of a microwave signal is an oscillation of the so-called virtual cathode. The goal of the presented research was to apply analytical analysis and numerical prototyping methods as a methodology for optimization of the electrical and mechanical design taking into account transformation of electrons' energy into a microwave signal. One of the key drawbacks of viractors as a microwave source is a low energy efficiency transformation, which is typically of a single percentage.
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References
Yeong-Jer Chen, "Compact, repetitive Marx generator and HPM generation with the vircator", MS Thesis, Texas Tech. Univ. 2005
I. Lanmuir, "The effect of space charge and initial velocities on the potential distribution and thermionic current between parallel plane electrodes", Phys. Rev. 21.419, 1923 DOI: https://doi.org/10.1103/PhysRev.21.419
C. Möller, "Design and Experiments with High Power Microwave Sources. The Virtual Cathode Oscillator", PhD Thesis, KTH Electrical Engineering, Stockholm, Sweden, 2012
K.S.Woolverton, "High-Power Coaxial Vircator Geometries", Ph.D.Thesis, Texas Tech. Univ. 1998
G. Bedford, "Theory of filamentation in relativistic electron beams", Plasma Phys. 15, 6, 483, 1973 DOI: https://doi.org/10.1088/0032-1028/15/6/003
V.L. Granatstein, I.A., Alexeff Eds., "High Power Microwave Sources" - Chapter 13. D.J. Sullivan, J.E. Walsh, E.A. Coutsias, "Virtual Cathode Oscillator (Vircator) Theory", Artech House, Boston, London, 1987
Ki Baek Song, et al., "Output of the axially extracted Virtual cathode oscillator with a cathode wing", IEEE Trans. Plasma Sci.37, 2, 304-310, 2009 DOI: https://doi.org/10.1109/TPS.2008.2010547
C. K. Birdsall, W. B. Bridges, "Electron Dynamics of Diode Regions", Academic Press, New York 1966
W. Czarczynski, "Space-charge Effects in Electron Beams", University of Southampton, C.V.D. Annual Research Report RU13/2/6a, September 1965
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