The use of FDTD for the analysis of magnetoplasma channel waveguides

Author

Farias, Rubem Gonçalves ; Giarola, Attilio José

Author_Institution

Dept. of Electr. Eng., Fed. Univ. of Para, Brazil

Volume

46

Issue

4

fYear

1998

fDate

4/1/1998 12:00:00 AM

Firstpage

387

Lastpage

394

Abstract

The finite-difference time-domain (FDTD) method is used for the analysis of magnetoplasma rectangular channel waveguides. Single and parallel-coupled waveguides are considered. The effect of varying the amplitude and the orientation of the bias magnetic field B₀ on the dispersion characteristics of the first modes is examined. However, the FDTD formulation, does not excite evanescent modes for a sufficiently long time interval, particularly when in the presence of the propagating or dynamic modes. As a result, the nonreciprocal properties of these structures, primarily associated with the evanescent modes, could not be investigated

Keywords

dispersion (wave); finite difference time-domain analysis; rectangular waveguides; semiconductor plasma; waveguide theory; FDTD formulation; bias magnetic field; dispersion characteristics; evanescent modes; finite-difference time-domain method; magnetoplasma channel waveguides; parallel-coupled waveguides; rectangular channel waveguides; Convolution; Dielectrics; Electromagnetic waveguides; Finite difference methods; Magnetic analysis; Maxwell equations; Rectangular waveguides; Semiconductor waveguides; Tensile stress; Time domain analysis;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/22.664139

Filename

664139