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Comparative analysis of radial and axial power output in relativistic magnetron and effect of dielectric side-walls introduced in the resonator on dominant operating mode

Published online by Cambridge University Press:  11 March 2014

Ayush Saxena ,
Raju Barakade ,
Navdeep M. Singh  and
Ankur Patel
Ayush Saxena*
Affiliation:
Electrical Engineering Department, Veermata Jijabai Technological Institute, H.R. Mahajani Marg, Matunga, Mumbai, India. Phone: +91 9773728838
Raju Barakade
Affiliation:
Electrical Engineering Department, Veermata Jijabai Technological Institute, H.R. Mahajani Marg, Matunga, Mumbai, India. Phone: +91 9773728838
Navdeep M. Singh
Affiliation:
Electrical Engineering Department, Veermata Jijabai Technological Institute, H.R. Mahajani Marg, Matunga, Mumbai, India. Phone: +91 9773728838
Ankur Patel
Affiliation:
Pulsed Power Division, Bhabha Atomic Research Centre, Mumbai, India
*
Corresponding author: A. Saxena Email: [email protected]
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Abstract

A comparative analysis of radiated power in relativistic magnetron is done using particle-in-cell simulations performed on Magic3d code developed by ATK Mission Systems. The Resonator with dielectric side-walls (DSW) is compared with no-side wall (NSW) configuration having same input parameters and resonator dimensions. Observations and comments have been made on the output power, obtained both axially and radially, taking into consideration π as well as 2π modes of operation for both configurations. The DSW assist in π-mode operation at 3.3 GHz and delivers radial peak power output of ~2.5 GW, which is more than ~1.5 GW, the radial peak power for the NSW case. The NSW case operates in dominant 2π mode (radially) at 5.68 GHz with axial power radiated at dominant π-mode frequency. The electron kinetic energies and their distribution in the cavity are discussed together with the dynamic behavior of particles, which result in spokes formation.

Keywords

ModelingSimulation and characterizations of devices and circuitsAntennas and propagation for wireless systems
Type
Research Papers
Information
International Journal of Microwave and Wireless Technologies , Volume 6 , Special Issue 6: Mediterranean Microwave Symposium 2013 , December 2014 , pp. 645 - 651
Copyright
Copyright © Cambridge University Press and the European Microwave Association 2014 

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References

[1] Collins, G.B.: Microwave Magnetrons, McGraw-Hill Book Company, Inc., New York, 1948.Google Scholar
[2] Benford, J.; Swegle, J.; Schamiloglu, E.: High Power Microwaves, 2nd ed., Taylor & Francis, New York, London, 2007.CrossRefGoogle Scholar
[3] Fuks, M.I.; Schamiloglu, E.: 70% efficient relativistic magnetron with axial extraction of radiation through a horn antenna. IEEE Trans. Plasma Sci., 38 (6) (2010), 1302–1312.CrossRefGoogle Scholar
[4] Li, W. et al. : Experimental demonstration of a compact high efficient relativistic magnetron with directly axial radiation. Phys. Plasmas, 19 (2012), 013105.CrossRefGoogle Scholar
[5] Hashemi, S.H.A.: Dielectric cavity relativistic magnetron. Appl. Phys. Lett., 96 (8) (2010), 081503-1–081503-3.CrossRefGoogle Scholar
[6] Maurya, S.; Singh, V.V.P.; Jain, P.K.: Study of output performance of partially dielectric loaded A6 relativistic magnetron, IEEE Trans. Plasma Sci. 40(4) (2012), 1070–1074.CrossRefGoogle Scholar
[7] Daimon, M.; Jiang, W.: Modified configuration of relativistic magnetron with diffraction output for efficiency improvement. Appl. Phys. Lett., 91 (2007), 191503; doi: 10.1063/1.2803757.CrossRefGoogle Scholar
[8] Raymond, W.; Lemke, T.; Genoni, C.; Spencer, T.A.: Effects that limit efficiency in relativistic magnetrons. IEEE Trans. Plasma Sci. 28 (3) (2000).CrossRefGoogle Scholar
[9] Kaup, D.J.: Theoretical modeling of an A6 relativistic magnetron. Phys. Plasmas, 11 (2004), 3151; doi: 10.1063/1.1710518.CrossRefGoogle Scholar
[10] Fan, Y.-W.; Liu, J.; Zong, H.-H.; Shu, T.; Li, Z.-Q.: Theoretical investigation of the fundamental mode frequency of A6 magnetron. J. Appl. Phys., 105 (2009), 083310.CrossRefGoogle Scholar
[11] Drazin, P.G.; Reid, W.H.: Hydrodynamic Stability, Cambridge University Press, New York, 1981, Chap. 4.Google Scholar
[12] Riyopoulos, S.: Efficiency reduction caused intense rf-induced E × B drift during relativistic magnetron operation. Phys. Plasmas, 6 (1999), 1344; doi: 10.1063/1.873714.CrossRefGoogle Scholar
[13] Sayapin, A.; Shalapakovski, A.: Transient operation of the relativistic magnetron with radial output. J. Appl. Phys., 109 (2011), 063301.CrossRefGoogle Scholar
[14] Ludeking, L.; Woods, A.; Cavey, L.: Magic User Manual 3.2, AlliantTechsystems, USA, 2011.Google Scholar