Scattering from silver metal cylinder due to L-nihility coated with conducting sheath helix embedded dielectric medium

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14 Citations (Scopus)

Abstract

In this article, scattering from silver metal cylinder due to L-nihility, coated with dielectric material that encapsulates perfectly electric conducting sheath helix structure, is presented. The orientation of helix can be altered, and the cases of both the parallel (TM) and the perpendicular (TE) polarizations of electromagnetic (EM) waves are analyzed. Co-and cross-polarized fields for different values of pitch angle are formulated under oblique angle of incidence. The bi-static echo width of the scatterer is investigated as a function of at the L-nihility frequency which lies within the optical frequency range. The results are compared with those obtained for perfect electric conductor (PEC) at different values of the angle of incidence. It is observed that the considered guiding structure behaves identically with the simple PEC cylinder under the situation when the helix structure is oriented parallel to the axial direction of the guide. However, for the other forms of the helix orientation, the structure behaves differently-thereby confirming the validity of the analytical approach for the aforementioned complex structured guide presented in the article.

Original languageEnglish
Pages (from-to)1354-1374
Number of pages21
JournalJournal of Electromagnetic Waves and Applications
Volume29
Issue number10
DOIs
Publication statusPublished - 3 Jul 2015

Fingerprint

Electric conductors
Silver
sheaths
helices
Metals
silver
Scattering
electric conductors
conduction
scattering
Electromagnetic waves
metals
incidence
Polarization
pitch (inclination)
echoes
electromagnetic radiation
frequency ranges
polarization
Direction compound

Keywords

  • echo width
  • L-nihility
  • scattering
  • twisted fiber structures

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Physics and Astronomy(all)

Cite this

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title = "Scattering from silver metal cylinder due to L-nihility coated with conducting sheath helix embedded dielectric medium",
abstract = "In this article, scattering from silver metal cylinder due to L-nihility, coated with dielectric material that encapsulates perfectly electric conducting sheath helix structure, is presented. The orientation of helix can be altered, and the cases of both the parallel (TM) and the perpendicular (TE) polarizations of electromagnetic (EM) waves are analyzed. Co-and cross-polarized fields for different values of pitch angle are formulated under oblique angle of incidence. The bi-static echo width of the scatterer is investigated as a function of at the L-nihility frequency which lies within the optical frequency range. The results are compared with those obtained for perfect electric conductor (PEC) at different values of the angle of incidence. It is observed that the considered guiding structure behaves identically with the simple PEC cylinder under the situation when the helix structure is oriented parallel to the axial direction of the guide. However, for the other forms of the helix orientation, the structure behaves differently-thereby confirming the validity of the analytical approach for the aforementioned complex structured guide presented in the article.",
keywords = "echo width, L-nihility, scattering, twisted fiber structures",
author = "N. Iqbal and Choudhury, {Pankaj Kumar} and {N V Visvanathan}, {P. Susthitha Menon}",
year = "2015",
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T1 - Scattering from silver metal cylinder due to L-nihility coated with conducting sheath helix embedded dielectric medium

AU - Iqbal, N.

AU - Choudhury, Pankaj Kumar

AU - N V Visvanathan, P. Susthitha Menon

PY - 2015/7/3

Y1 - 2015/7/3

N2 - In this article, scattering from silver metal cylinder due to L-nihility, coated with dielectric material that encapsulates perfectly electric conducting sheath helix structure, is presented. The orientation of helix can be altered, and the cases of both the parallel (TM) and the perpendicular (TE) polarizations of electromagnetic (EM) waves are analyzed. Co-and cross-polarized fields for different values of pitch angle are formulated under oblique angle of incidence. The bi-static echo width of the scatterer is investigated as a function of at the L-nihility frequency which lies within the optical frequency range. The results are compared with those obtained for perfect electric conductor (PEC) at different values of the angle of incidence. It is observed that the considered guiding structure behaves identically with the simple PEC cylinder under the situation when the helix structure is oriented parallel to the axial direction of the guide. However, for the other forms of the helix orientation, the structure behaves differently-thereby confirming the validity of the analytical approach for the aforementioned complex structured guide presented in the article.

AB - In this article, scattering from silver metal cylinder due to L-nihility, coated with dielectric material that encapsulates perfectly electric conducting sheath helix structure, is presented. The orientation of helix can be altered, and the cases of both the parallel (TM) and the perpendicular (TE) polarizations of electromagnetic (EM) waves are analyzed. Co-and cross-polarized fields for different values of pitch angle are formulated under oblique angle of incidence. The bi-static echo width of the scatterer is investigated as a function of at the L-nihility frequency which lies within the optical frequency range. The results are compared with those obtained for perfect electric conductor (PEC) at different values of the angle of incidence. It is observed that the considered guiding structure behaves identically with the simple PEC cylinder under the situation when the helix structure is oriented parallel to the axial direction of the guide. However, for the other forms of the helix orientation, the structure behaves differently-thereby confirming the validity of the analytical approach for the aforementioned complex structured guide presented in the article.

KW - echo width

KW - L-nihility

KW - scattering

KW - twisted fiber structures

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