Scattering by a finite set of perfectly conducting cylinders buried in a dielectric half-space: a spectral-domain solution

• Published in: IEEE transactions on antennas and propagation Vol. 53; no. 2; pp. 719 - 727
• Main Authors: Di Vico, M., Frezza, F., Pajewski, L., Schettini, G.
• Format: Journal Article
• Language: English
• Published: New York, NY IEEE 01.02.2005; Institute of Electrical and Electronics Engineers; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Applied sciences; Buried object detection; Dielectrics; Diffraction, scattering, reflection; Electromagnetic analysis; Electromagnetic diffraction; Electromagnetic scattering; Electromagnetic wave polarization; Engine cylinders; Exact sciences and technology; Integral equations; Landmine detection; Radiocommunications; Radiowave propagation; Reflection; spectral domain analysis; Telecommunications; Telecommunications and information theory; Tellurium; Electromagnetic wave scattering; Spectral method; Far field; Two dimensional model; Half space; Conducting body; Wave transmission; Induced current; Cylindrical wave; Electromagnetic wave propagation; Spectrum analysis; Wave scattering; Analytical method; Plane wave; Circular cylinder; Circular configuration; Signal analysis; Target detection; Buried object detection; electromagnetic scattering; spectral domain analysis
• ISSN: 0018-926X; 1558-2221
• DOI: 10.1109/TAP.2004.841315

An analytical-numerical technique, for the solution of the two-dimensional electromagnetic plane-wave scattering by a finite set of perfectly conducting circular cylinders buried in a dielectric half-space, is presented. The problem is solved for both the near- and the far-field regions, for TM and TE polarizations. The diffracted field is represented in terms of a superposition of cylindrical waves and use is made of the plane-wave spectrum to take into account the reflection and transmission of such waves by the interface. The validity of the approach is confirmed by comparisons with results available in the literature, with very good agreement. The multiple interactions between two buried cylinders have been studied by considering both the induced currents and the scattered field diagrams. Applications of the method to objects of arbitrary cross-section simulated by a suitable configuration of circular cylinders are shown.