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A hybrid fast converging series expansion for the 2D Green's function of a multilayered medium

✍ Scribed by Hendrik Rogier

Publisher
John Wiley and Sons
Year
2005
Tongue
English
Weight
162 KB
Volume
45
Category
Article
ISSN
0895-2477

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✦ Synopsis

Abstract

A new formalism combining modal expansions based on perfectly matched layers (PMLs) and on Floquet modes is proposed to derive a fast‐converging series expansion for the 2D Green's function of layered media. The PML‐based modal expansion is obtained by terminating the waveguide, formed by the layered medium, with PMLs. The convergence of this series is improved by adding an expansion of Floquet modes corresponding to an auxiliary periodic problem. The period of this auxiliary problem acts as a parameter, the convergence rate of both series allowing to be controlled. The formalism is applied to a dielectric‐slab waveguide to illustrate the improved convergence and the efficiency of the new approach. © 2005 Wiley Periodicals, Inc. Microwave Opt Technol Lett 45: 130–134, 2005; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.20747

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