Microwave Scattering Characteristics of a Cylindrical Conductor Coated by Dispersive Metamaterials with an Intervening Air Gap

Main Article Content

A. G. Jamil
T. C. K. Rao

Abstract

Plane wave scattering characteristics of a conducting cylinder coated by a layer of metamaterial (MTM) having dispersive and lossy constitutive parameters – permittivity (ε) and permeability (μ) - with an intervening air gap is investigated by using the boundary-value technique. The backscattering cross section (BSCS) or the monostatic radar cross section (RCS) has been obtained for both the TM and the TE incident wave polarizations. Analysis based on a mathematical model, namely the Drude-Lorentz dispersion model, for the MTM coating shows that for a certain range of frequencies, the material may behave as either permeability- (or mu-) negative (MNG), permittivity- (or epsilon-) negative (ENG), both- (or double-) negative (DNG) or finally as both- (or double-) positive (DPS). The dispersive and lossy characteristics of these materials combined with the added features of an air gap (which can be practically realized by a layer of Styrofoam) seem to indicate that it is possible to achieve an extremely low radar echo width over a broad range of frequencies, particularly for the DNG type MTM. Further investigations on the total scattering cross section (TSCS) for the DNG type MTM, appear to demonstrate that near perfect broadband cloaking is possible with this geometry.

Downloads

Download data is not yet available.

Article Details

How to Cite
Jamil, A. G. ., & Rao, T. C. K. (2022). Microwave Scattering Characteristics of a Cylindrical Conductor Coated by Dispersive Metamaterials with an Intervening Air Gap . Advanced Electromagnetics, 11(3), 57–63. https://doi.org/10.7716/aem.v11i3.1993
Section
Research Articles
Author Biography

T. C. K. Rao, University of Massachusetts

Tenneti Rao obtained Ph.D from the Indian Institute of Science and worked in India, Canada and in the US. He worked in MIT Lincoln Laboratory and then in University of Massachusetts Lowell. His area of research is in Applied Electromagnetics, where he published over 90 papers and conference presentations. He retired from U.Mass Lowell in 2016 after working for over 33 years.

References

M. A. Plonus, "Backscattering from a Conducting Cylinder with a Surrounding Shell," Canadian Journal of Physics, vol. 38, pp. 1665-1676, 1960.

View Article

T. C. K Rao and M. A. K. Hamid, "Scattering by a multi-layered dielectric-coated conducting cylinder," International Journal of Electronics, vol. 38, pp. 667-673, 1975.

View Article

N. Wang, "Electromagnetic Scattering from a Dielectric Coated Circular Cylinder," IEEE Transactions on Antennas and Propagation, vol. AP-33, no. 9, pp. 960-963, 1985.

View Article

C. C. H. Tang, "Backscattering from Dielectric Coated Infinite Cylindrical Obstacles," Journal of Applied Physics, vol. 28, no. 5, pp. 628-633, 1957.

View Article

R. D. Kodis, "Back Scattering at High Frequencies from a Conducting Cylinder with Dielectric Sleeve," IRE Transactions on Antennas and Propagation, vol. 7, no. 5, pp. 468-470, 1959.

View Article

C. A. Valagiannopoulos, P. Alitalo and S. A. Tretyakov, "On the Minimal Scattering Response of PEC Cylinders in a Dielectric Cloak," IEEE Antennas and Wireless Propagation Letters, vol. 13, pp. 403-406, 2014.

View Article

V. G. Veselago, "The Electrodynamics of Substances with Simultaneously Negative values of ε and µ," Soviet Physics Uspekhi, vol. 10, no. 4, pp. 509-514, 1968.

View Article

J. B. Pendry, A. J. Holden, W. J. Stewart and I. Youngs, "Extremely low frequency plasmons in metallic meso structures," Physical Review Letters, vol. 76, pp. 4773-4776, 1996.

View Article

J. B. Pendry, A. J. Holden, D. J. Robbins and W. J. Stewart, "Magnetism from Conductors and Enhanced Nonlinear Phenomena," IEEE Transactions on Microwave Theory and Techniques, vol. 47, pp. 2075-2084, 1999.

View Article

D.R. Smith, W. J. Padilla, D.C. Vier, S.C. Nemat-Nasser and S. Schultz, "Composite medium with simultaneously negative permeability and permittivity," Physical Review Letters, vol. 84, pp. 4184-4187, 2000.

View Article

D. Schurig, J. J. Mock, B. J. Justice, S. A. Cummer, J. B. Pendry, A. F. Starr and D. R. Smith, "Metamaterial Electromagnetic Cloak at Microwave Frequencies," Science, vol. 314, pp. 977-980, 2006.

View Article

C. Li and Z. Shen, "Electromagnetic Scattering by a Conducting Cylinder coated with Metamaterials," Progress in Electromagnetics Research (PIER), vol. 42, pp. 91-105, 2003.

View Article

S. Ahmed and Q. A. Naqvi, "Electromagnetic scattering from a perfect electromagnetic conductor cylinder coated with a metamaterial having negative permittivity and/or permeability," Optics Communications, vol. 281, no. 23, pp. 5664-5670, 2008.

View Article

H. Wang and X. Zhang, "Achieving multifrequency transparency with cylindrical plasmonic Cloak," Journal of Applied Physics, vol. 106, pp. 053302 - 1 to 6, 2009.

View Article

E. Irci and V. B. Erturk, "Achieving transparency and maximizing scattering with metamaterial-coated conducting cylinders," Physical Review E, vol. 76, pp. 1-15, 2007.

View Article

L. K. Hady and A. A. Kishk, "Electromagnetic scattering from conducting circular cylinder coated by metamaterials and loaded with helical strips under oblique incidence," Progress in Electromagnetic Research (PIER B), vol. 3, pp. 189-206, 2008.

View Article

H. Oraizi and A. Abdolali, "Combination of MLS, GA & CG for the reduction of RCS of Multilayered Cylindrical Structures composed of Dispersive Metamaterials," Progress in Electromagnetic Research (PIER B), vol. 3, pp. 227-253, 2008.

View Article

A. Alu and N. Engheta, "Cloaking a receiving antenna or a sensor with plasmonic metamaterials,"

View Article