On the investigation of scattered field from coated PEC cylinder buried beneath slightly rough surface

Article type: Research Article

Authors: Fiaz, M.A.^{a; *} | Ashraf, M.A.^a

Affiliations: [a] Department of Electronics, Quaid-i-Azam University, Islamabad, Pakistan

Correspondence: [*] Corresponding author: M.A. Fiaz, Department of Electronics, Quaid-i-Azam University, Islamabad, Pakistan. E-mail: urarshad@gmail.com

Abstract: An analytic technique based on spectral plane wave representation of fields (SPRF) for the scattering of a plane wave from a perfectly electric conductor (PEC) cylinder coated with double positive (DPS) or double negative (DNG) materials buried beneath a slightly rough surface is formulated. Small Perturbation Method is used to consider scattering from rough surface. Spectral integrals are evaluated using saddle point method. A comparison with the previously available results has been done for validity. Both TM and TE polarizations are considered to obtain results varying different geometrical and physical parameters.

Keywords: Scattering, rough surface, DNG, buried object

DOI: 10.3233/JAE-130171

Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 47, no. 1, pp. 83-93, 2015