New formulation of reflection coefficient in propagation theory for imaging inhomogeneous media and for nonuniform waveguides

Henry Berger; Delma Del Bosque-Izaguirre

doi:10.1117/12.46069

1 May 1991 New formulation of reflection coefficient in propagation theory for imaging inhomogeneous media and for nonuniform waveguides

Henry Berger, Delma Del Bosque-Izaguirre

Author Affiliations +

Proceedings Volume 1521, Image Understanding for Aerospace Applications; (1991) https://doi.org/10.1117/12.46069
Event: Munich '91 (Lasers '91), 1991, Munich, Germany

Abstract

This paper discusses apparent deficiencies of the reflection coefficient (R) for inhomogeneous media (IX) and single-mode nonuniform waveguides (NOW5) as used in current wave propagation theory for time-harmonic waves. A new formulation is proposed (Rn) which tracks energy transport spatially, unlike the classical Schelkunoff formulation (Re) which may not display, even approximately, this property. Although the paper is focused on electromagnetic waves, the new formulation is also applicable to acoustics and related wave types. The paper discusses why, after more than four decades of careful measurement and analysis, the deficiencies have apparently gone undetected.

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Henry Berger and Delma Del Bosque-Izaguirre "New formulation of reflection coefficient in propagation theory for imaging inhomogeneous media and for nonuniform waveguides", Proc. SPIE 1521, Image Understanding for Aerospace Applications, (1 May 1991); https://doi.org/10.1117/12.46069

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