Diffraction at trilateral cylinders with combinations of soft and hard faces: first-order PTD approximation
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Date
2018
Journal Title
Journal ISSN
Volume Title
Publisher
Taylor & Francis inc
Abstract
The paper investigates diffraction at trilateral cylinders with combinations of soft (electric) and hard (magnetic) faces. Scattered field in far zone is calculated according to the physical theory of diffraction. The first-order high-frequency approximation is constructed as a sum of single-diffracted edge waves. Plotted numerical data clearly demonstrate the difference for objects with different faces. Substantial suppression of backscattering is observed for cylinders with soft-hard illuminated faces. Fringe wave contributions to the scattered field are shown. Physical theory of diffraction results are compared with those of the physical optics and confirmed by the method of moments.
Description
Hacivelioglu, feray/0000-0003-0394-3736; Apaydin, Gokhan/0000-0001-8028-0353;
Keywords
Asymptotic theory, diffraction, far zone field, fringe waves, high-frequency approximation, physical optics, physical theory of diffraction, scattering, soft and hard boundary conditions, stealth technology, surface impedance
Turkish CoHE Thesis Center URL
Citation
2
WoS Q
Q4
Scopus Q
Q4
Source
Volume
38
Issue
4
Start Page
217
End Page
225