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http://dx.doi.org/10.5515/KJKIEES.2014.25.10.1087

Analysis of the Scattering Property of Dielectric Scatterer with Impedance Boundary Condition  

Hwang, Ji-Hwan (Department of Electronic Information and Communication Engineering, Hongik University)
Park, Sin-Myeong (Department of Electronic Information and Communication Engineering, Hongik University)
Oh, Yisok (Department of Electronic Information and Communication Engineering, Hongik University)
Publication Information
The Journal of Korean Institute of Electromagnetic Engineering and Science / v.25, no.10, 2014 , pp. 1087-1094 More about this Journal
Abstract
An numerical technique of impedance boundary condition to improve an efficiency in the process of moment method with CFIE(Combined Field Integral Equation), which is widely used to analyze the scattering property of dielectric scatterers, and results of its cross-validations are presented in this study. Application of the impedance boundary allows to represent the equivalent surface currents of dielectric scatterer depicted by both kinds of electric/magnetic surface currents(Js, Ms) to the single surface current by Js or Ms only. Accuracy of this technique is validated by the existing CFIE and theoretical values such as Mie-series solution and small perturbation scattering model. The computational difference of less than 1 dB was verified within an imaginary part of dielectric constant more than 12, as well.
Keywords
Impedance Boundary Condition; Combined Field Integral Equation; Moment Method; Dielectric Scatterer;
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  • Reference
1 M. N. O. Sadiku, Numerical Techniques in Electromagnetics, CRC press, pp. 377-458, 2000.
2 Y. Oh, Y.-M. Jang, and K. Sarabandi, "Full-wave analysis of microwave scattering from short vegetation: an investigation on the effect of multiple scattering", IEEE Trans. Geosci. Remote Sensing, vol. 40, no. 11, pp. 2522-2526, Nov. 2002.   DOI   ScienceOn
3 J.-H. Hwang, Y. Oh, "Investigation of the effect of boundary edges placed on an infinite conducting surface and effective treatment using virtual vertices", Antenna and Wireless Propagation Letters, vol. 11, pp. 913-916, 2012.   DOI   ScienceOn
4 Y. Oh, K. Sarabandi, "Improved numerical simulation of electromagnetic wave scattering from perfectly conducting random surface", IEE Proc.-Microw. Antennas Propag., vol. 144, no. 4, pp. 256-260, Aug. 1997.   DOI   ScienceOn
5 T. B. A. Senior, J. L. Volakis, "Generalized impedance boundary conditions in scattering", IEEE Proc., vol. 79, no. 10, pp.1413-1420, Oct. 1991.   DOI
6 M. F. Chen, S.-Y. Bai, "Computer simulation of wave scattering from dielectric random surface cylinder case", IGARSS '89, pp. 1318-1321, 1989.
7 J. C. West, "An implementation of the impedance-boundary combined field integral equation moment method for arbitrarily shape objects", IEEE AP-S 2008, pp. 1-4, 2008.
8 A. K. Fung, K. S. Chen, Microwave Scattering and Emission Models for Users, Artech House, USA, pp. 331-357, 2010.
9 G. T. Ruck, et al., Radar Cross Section Handbook, Plenum press, New York, 1970.
10 F. T. Ulaby, C. Elachi, Radar Polarimetry for Geoscience Applications, Artech House, USA, 1990.
11 F. T. Ulaby, R. K. Moore, and A. K. Fung, Microwave Remote Sensing, Active and Passive, Artech House, pp. 2017-2104, 1981.