The addition theorems are applied to analyze the normal incidence of plane waves onto infinitely long conducting or dielectric circular cylinders with multilayer coatings made of common and uncommon materials (εr, μr, σ) with the objective of minimization and maximization of radar cross-section (RCS). TE, TM and circular polarizations of the incident wave are considered. Optimization of RCS by the method of least squares leads to the determination of layer thicknesses and the material complex permittivities and permeabilities. A sensitivity analysis of RCS with respect to the geometrical and material parameters of the multilayer coated conducting cylinder is also performed. It is observed that broadband reduction of RCS is mostly achievable by a combination of conventional materials (εr, μr > 1), and unconventional materials (0 < εr, μr < 1) and lossy materials (σ > 0). It is seen that RCS reduction is due to the diversion and dissipation of radar signals. The results agree very well with the experimental and theoretical data available in the literature.
"Ultra Wide Band RCS Optimization of Multilayerd Cylindrical Structures for Arbitrarily Polarized Incident Plane Waves," ,
Vol. 78, 129-157, 2008. doi:10.2528/PIER07090305
1. Knot, E. F., J. F. Shaeffer, and M. T. Tuley, Radar Cross-Section, Artech House, Norwood, MA, 1986.
2. Skolnik, M. I., Radar Handbook, McGrawhill, NY, 1986.
3. Oraizi, H. and M. Afsahi, "Analysis of planar dielectric multilayers as Fss by transmission line transfer matrix method (TLTMM)," Progress In Electromagnetics Research, Vol. 74, 217-240, 2007. doi:10.2528/PIER07042401
4. Vinogradov, S. S., P. D. Smith, J. S. Kot, and N. Nikolic, "Radar cross-section studies of spherical lens reflectors," Progress In Electromagnetics Research, Vol. 72, 325-337, 2007. doi:10.2528/PIER07031206
5. Fabbro, V., P. F. Combes, and N. Guillet, "Apparent radar cross section of a large target illuminated by a surface wave above the sea," Progress In Electromagnetics Research, Vol. 50, 41-60, 2005. doi:10.2528/PIER04050502
6. El-Ocla, H., "On laser radar cross section of targets with large sizes for E-polarization," Progress In Electromagnetics Research, Vol. 56, 323-333, 2006. doi:10.2528/PIER05052701
7. Zhang, M., T. S. Yeo, L. W. Li, and M. S. Leong, "Electromagnetic scattering by a multilayer gyrotropic bianisotropic circular cylinder," Progress In Electromagnetics Research, Vol. 40, 91-111, 2002. doi:10.2528/PIER02101001
8. Yang, J., L. W. Li, K. Yasumoto, and C. H. Liang, "Twodimensional scattering of a Gaussian beam by a periodic array of circular cylinders," IEEE Transactions on Geoscience and Remote Sensing, Vol. 43, No. 2, 280-285, 2005. doi:10.1109/TGRS.2004.841416
9. Wang, X. D., Y. B. Gan, and L. W. Li, "Electromagnetic scattering by partially buried PEC cylinder at the dielectric rough surface interface: TM case," IEEE Antennas and Wireless Propagation Letters, Vol. 2, 319-322, 2003. doi:10.1109/LAWP.2003.822200
10. Yang, J., L. W. Li, and C. H. Liang, "Two-dimensional scattering by a periodic array of gyrotropic cylinders embedded in a dielectric slab," IEEE Antennas and Wireless Propagation Letters, Vol. 2, No. 1, 18-21, 2003. doi:10.1109/LAWP.2003.810774
11. Yin, W. Y., L. W. Li, and M. S. Leong, "Scattering from multiple bianisotropic cylinders and their modeling of cylindrical objects of arbitrary cross-section," Progress In Electromagnetics Research, Vol. 27, 159-184, 2000. doi:10.2528/PIER99091302
12. Truman, C. W., S. J. Kubina, S. R. Mishra, and C. Larose, "Radar cross-section of a generic aircraft at HF frequencies," Canadian J. Elect. Comp. Eng, Vol. 18, No. 2, 59-62, 1993.
13. Sevgi, L. and S. Paker, "FDTD based RCS calculations and antenna simulation," AEU, Vol. 52, No. 2, 65-75, 1986.
14. Gurel, L., H. Bagei, J. C. Castelli, A. Cheraly, and F. Tardivel, "Validation through comparison, measurement and calculation of bistatic RCS of a stealth target," Radio Science, Vol. 38, No. 3, 1046-1057, 2003. doi:10.1029/2001RS002583
15. Sevgi, L., Complex Electromagnetic Problems and Numerical Simulation Approaches, IEEE & John Wiley Press, 2003.
16. Tang, C. C. H., "Backscattering from dielectrically coated infinite cylindrical obstacles," J. Appl. Phys., Vol. 28, 628-633, 1957. doi:10.1063/1.1722815
17. Hill, S. C. and J. M. Jarem, "Scattering of multilayer concentric elliptical cylinders excited by single mode source," Progress In Electromagnetics Research, Vol. 55, 209-226, 2005. doi:10.2528/PIER05040501
18. Anastassiu, H. T., "Error estimation of the method of auxiliary sources (MAS) for scattering from an impedance circular cylinder," Progress In Electromagnetics Research, Vol. 52, 109-128, 2005. doi:10.2528/PIER04072101
19. Vinoy, K. J. and R. M. Jha, Radar Absorbing Materials: From Theory to Design and Characterizaton, Kluwer Academic Publishers, Masschusetts, 1996.
20. Ramprecht, J. and D. Sjeberg, "Biased magnetic materials in RAM applications," Progress In Electromagnetics Research, Vol. 75, 85-117, 2007. doi:10.2528/PIER07052501
21. Mittra, R. and O. Ramahi, "Absorbing boundary conditions for the direct solution of partial differential equations arising in electromagnetic scattering problems," Progress In Electromagnetics Research, Vol. 02, 133-173, 1990.
22. Jaggard, D. L. and N. Engheta, "Chiro-shield: a Salisbury/ Dallenbach shield alternative," Electron. Lett., Vol. 26, No. 17, 1332-1334, 1990. doi:10.1049/el:19900859
23. Ishimaru, A., Electromagnetic Wave Propagation, Radiation, and Scattering, Prentice-Hall, Englewood Cliffs, 1991.
24. Li, C. and Z. Shen, "Electromagnetic scattering by a conducting cylinder coated with metamaterials," Progress In Electromagnetics Research, Vol. 42, 91-105, 2003. doi:10.2528/PIER03012901
25. Richmond, J. R., "Scattering by a dielectric cylinder of arbitrary cross-section shape," IEEE Trans. Antennas and Propag., Vol. 13, 334-341, 1965. doi:10.1109/TAP.1965.1138427
26. Yao, H. Y., L. W. Li, C. W. Qiu, Q. Wu, and Z. N. Chen, "Scattering properties of electromagnetic wave in a multilayerd cylinder filled with double negative and positive materials," Radio Science, Vol. 42, 2007. doi:10.1029/2006RS003509
27. Tang, C. C. H., "Backscattering from dielectrically coated infinite cylindrical obstacles," Ph.D. Thesis, 1956.
28. Oraizi, H., "Application of the method of least squares to electromagnetic engineering problems," IEEE Antenna and Propagation Magazine, Vol. 48, No. 1, 50-75, 2006. doi:10.1109/MAP.2006.1645560
29. Tah-Hsiung, C., "Polarization effects on microwave imaging of dielectric cylinder," IEEE Transactions on Microwave Theory and Techniques, Vol. 36, No. 9, 1366-1369, 1988. doi:10.1109/22.3685