Three-dimensional FDTD simulation of electromagnetic wave transformation in a dynamic inhomogeneous magnetized plasma

A three-dimensional (3-D) finite-difference time domain (FDTD) algorithm is developed to study the transformation of an electromagnetic wave by a dynamic (time-varying) inhomogeneous magnetized plasma medium. The current density vector is positioned at the center of the Yee cube to accommodate the a...

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Bibliographic Details
Published inIEEE transactions on antennas and propagation Vol. 47; no. 7; pp. 1146 - 1151
Main Authors Joo Hwa Lee, Kalluri, D.K.
Format Journal Article
LanguageEnglish
Published IEEE 01.07.1999
Subjects
Algorithms
Anisotropy
Current density
Dynamics
Electromagnetic scattering
Electromagnetic waves
Electrons
Finite difference methods
Finite difference time domain method
Frequency
Magnetic anisotropy
Mathematical analysis
Perpendicular magnetic anisotropy
Plasma density
Plasma simulation
Plasma waves
Time domain analysis
Transformations
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Summary:A three-dimensional (3-D) finite-difference time domain (FDTD) algorithm is developed to study the transformation of an electromagnetic wave by a dynamic (time-varying) inhomogeneous magnetized plasma medium. The current density vector is positioned at the center of the Yee cube to accommodate the anisotropy of the plasma medium due to the presence of a static magnetic field. An appropriate time-stepping algorithm is used to obtain accurate solutions for arbitrary values of the collision frequency and the electron cyclotron frequency. The technique is illustrated by calculating the frequency shifts in a cavity due to a switched magnetoplasma medium with a time varying and space-varying electron density profile.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
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ISSN:0018-926X
1558-2221
DOI:10.1109/8.785745