Departmental Papers (ESE)

Document Type

Journal Article

Date of this Version

August 2007

Comments

Copyright 2007 IEEE. Reprinted from IEEE Transactions on Microwave Theory and Techniques, Volume 55, Issue 8, August 2007, pages 1689-1696.

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Abstract

In this paper we extend the Fourier decomposition method to compute both propagation constants and the corresponding electromagnetic field distributions of guided waves in millimeter-wave and integrated optical structures. Our approach is based on field Fourier expansions of a pair of wave equations which have been derived to handle inhomogeneous mediums with diagonalized permittivity and permeability tensors. The tensors are represented either by a grid of homogeneous rectangles or by distribution functions defined over rectangular domains. Using the Fourier expansion, partial differential equations are converted to a matrix eigenvalue problem that correctly models this class of dielectric structures. Finally numerical results are presented for various channel waveguides and are compared with those of other literatures to validate our formulation.

Keywords

anisotropic, dielectric waveguide, fourier decomposition method, inhomogenous

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Date Posted: 13 August 2007

This document has been peer reviewed.