Accession Number : AD0665875

Title :   MULTI-MODE WAVE COUPLING IN INHOMOGENEOUS, ANISOTROPIC MEDIA - WITH SOME MAGNETOIONIC APPLICATIONS,

Corporate Author : PENNSYLVANIA STATE UNIV UNIVERSITY PARK IONOSPHERE RESEARCH LAB

Personal Author(s) : Rydbeck,O. E. H.

Report Date : 10 APR 1967

Pagination or Media Count : 296

Abstract : The report deals with coupled waves, or coupled modes in arbitrary inhomogeneous n-wave systems. The partial waves, which make up the total wave field (of some physical kind) are expressed either in terms of so called inhomogeneous wave numbers, or of regular homogeneous ones (with corresponding phase integrals). The partial wave amplitudes are related to each other by first order coupled amplitude equations, with coupling coefficients depending upon the physical nature of the modes appearing in the system. These wave couplings are formally simple only when the partial waves have symmetrical properties of some kind (which is the case in many practical applications). A great number of coupled mode systems are analysed, compared, and discussed in considerable detail, with applications for example to magnetoionic, and to active (amplifying), inhomogeneous media. This report represents a major effort to relate all coupled wave phenomena to each other, irrespective of their particular physical background; in short to present a unified theory of multi-mode couplings in inhomogeneous media. (Author)

Descriptors :   (*ELECTROMAGNETIC RADIATION, PROPAGATION), INTERACTIONS, POLARIZATION, QUANTUM THEORY, ELECTROMAGNETIC FIELDS, TRAVELING WAVE TUBES, IONOSPHERIC PROPAGATION, ELECTROMAGNETIC WAVE REFLECTIONS, MATHEMATICAL ANALYSIS

Subject Categories : Radiofrequency Wave Propagation

Distribution Statement : APPROVED FOR PUBLIC RELEASE