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Electromagnetic scattering by impedance structures

Author
Balanis, Constantine A.
Published
JAN 1, 1987.
Physical Description
1 electronic document
Additional Creators
Griesser, Timothy
Online Version

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Unclassified, Unlimited, Publicly available.
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Summary
The scattering of electromagnetic waves from impedance structures is investigated, and current work on antenna pattern calculation is presented. A general algorithm for determining radiation patterns from antennas mounted near or on polygonal plates is presented. These plates are assumed to be of a material which satisfies the Leontovich (or surface impedance) boundary condition. Calculated patterns including reflection and diffraction terms are presented for numerious geometries, and refinements are included for antennas mounted directly on impedance surfaces. For the case of a monopole mounted on a surface impedance ground plane, computed patterns are compared with experimental measurements. This work in antenna pattern prediction forms the basis of understanding of the complex scattering mechanisms from impedance surfaces. It provides the foundation for the analysis of backscattering patterns which, in general, are more problematic than calculation of antenna patterns. Further proposed study of related topics, including surface waves, corner diffractions, and multiple diffractions, is outlined.
Other Subject(s)
Collection
NASA Technical Reports Server (NTRS) Collection.
Note
Document ID: 19870016822.
Accession ID: 87N26255.
NAS 1.26:181147.
NASA-CR-181147.
Terms of Use and Reproduction
No Copyright.
View MARC record | catkey: 15698106