NDLI: On the Variational Reaction Theory for Dielectric Waveguides

Content Provider	IEEE Xplore Digital Library
Author	Ruey-Beei Wu Chun Hsiung Chen
Copyright Year	1963
Description	By the reaction concept, a variational theory is established for treating the scattering and propagation problem associated with a dielectric waveguide which is illuminated by an obliquely incident plane wave. The theory is characterized by properly absorbing radiation and continuity conditions into the variational equation. This equation is then solved by the finite-element method together with the frontal solution technique. In this paper, the propagation constants of the guide are obtained by the procedure of searching for the poles of the scattering coefficients when an inhomogeneous wave is incident. Two most attractive features of this approach are the avoidance of the spurious modes and the accuracy of the results even for the modes near cutoff. Although the proposed theory may be applied to dielectric waveguides of arbitrary cross section, only the one with rectanguIar shape is investigated in detail. Also included in this study are numericul results for the propagation constants in discussing the effects due to differences in refractive indices, aspect ratios, and index profiles.
Sponsorship	IEEE Microwave Theory and Techniques Society
Starting Page	477
Ending Page	483
Page Count	7
File Size	757109
File Format	PDF
ISSN	00189480
Volume Number	33
Issue Number	6
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1985-06-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Dielectrics Waveguide theory Optical waveguides Equations Optical scattering Propagation constant Planar waveguides Finite element methods Rectangular waveguides Optical refraction
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electrical and Electronic Engineering Radiation

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