Theoretical investigation of electromagnetic waves in a dielectric loaded coaxial plasma waveguide

Journal Article · Thu Jun 15 04:00:00 EDT 2006 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.2211127· OSTI ID:20787390

Aghamir, F M; Zandieh, M N ^[1]

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1. Department of Physics, University of Tehran, Tehran (Iran, Islamic Republic of)

A theoretical study of high frequency eigenmodes of a dielectric loaded coaxial waveguide in the presence of an annular plasma column is presented. A uniform axial magnetic field is applied to maintain the plasma position inside the waveguide. The dispersion equation is derived through the application of the appropriate boundary conditions which results in an eighth order determinant. The eigenmodes are determined by equating this determinant to zero. In the presence of the dielectric layer on the conducting surfaces, the azimuthally symmetric modes have been identified as HE, EH, cyclotron, and space charge modes for the coaxial waveguide. A comparison of the numerical analyses of this study with the results of the previous investigations indicates that there is a considerable rise in the frequencies of the waveguide modes.

• OSTI ID: 20787390
• Journal Information: Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 6 Vol. 13; ISSN PHPAEN; ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
BOUNDARY CONDITIONS
COMPARATIVE EVALUATIONS
DIELECTRIC MATERIALS
DISPERSION RELATIONS
ELECTROMAGNETIC RADIATION
LAYERS
MAGNETIC FIELDS
NUMERICAL ANALYSIS
PLASMA
PLASMA INSTABILITY
SPACE CHARGE
WAVEGUIDES