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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/8095
Title: Analysis of Plasma-Loaded Noncorrugated and Triangular Corrugated Coaxial Cavity
Authors: Singh S.
Kartikeyan M.V.
Published in: IEEE Transactions on Electron Devices
Abstract: A field analysis of plasma-loaded noncorrugated coaxial cavity and plasma-loaded triangular corrugated cavities for megawatt-class gyrotrons has been undertaken. The presence of magnetic field in plasma changes its characteristics to an anisotropic media. In plasma waveguide, three families of modes can exist: plasma modes (space charge modes), cyclotron modes, and waveguide EH and HE modes. The modes present in the plasma are hybrid modes with all six nonzero field components. The presence of the low-density plasma in a gyrotron cavity leads to the coupling of these families of modes and causes a shift in the eigenvalue of the operating (desired) mode. In this paper, the dispersion relation for a plasma-loaded noncorrugated and triangular corrugated coaxial cavity has been derived. For the gyrotron case, where the cyclotron frequency of the plasma is approximately equal to the operating frequency and the operating frequency is near mode cutoff frequency in the cavity, the desired HE mode couples with the cyclotron mode. This coupling leads to shift in the eigenvalue of the HE mode. © 1963-2012 IEEE.
Citation: IEEE Transactions on Electron Devices (2016), 63(10): 4060-4066
URI: https://doi.org/10.1109/TED.2016.2594096
http://repository.iitr.ac.in/handle/123456789/8095
Issue Date: 2016
Publisher: Institute of Electrical and Electronics Engineers Inc.
Keywords: Anisotropy
coaxial cavity gyrotron
plasma
triangular corrugated cavity
ISSN: 189383
Author Scopus IDs: 57206711796
6603631347
Author Affiliations: Singh, S., Department of Electronics and Communication Engineering, IIT Roorkee, Roorkee, 247667, India
Kartikeyan, M.V., Department of Electronics and Communication Engineering, IIT Roorkee, Roorkee, 247667, India
Appears in Collections:Journal Publications [ECE]

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