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| Application of AWE to Scattering Analysis of the Double-negative Medium over a Broad Frequency Band |
| Sun Yu-xin① Chen Ming-sheng② Wu Xian-liang①② Yang Mei① |
①(School of Electronic Science and Technology, Anhui University, Hefei 230039, China)
②(Department of Physics and Electronic Engineering, Hefei Normal University, Hefei 230061, China) |
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Abstract In this paper, the Asymptotic Waveform Evaluation (AWE) technique is applied to study electromagnetic scattering analysis of Double-NeGative (DNG) medium. The PMCHWT equation of the DNG is deduced based on its constitutive relationship. And the surface currents and Radar Cross Section (RCS) at a single frequency point is computed; In order to achieve high-order derivation work, impedance matrix elements are managed. Then the AWE technique is applied to obtain broadband RCS frequency response of the DNG. A good agreement can be seen between AWE and the exact solution. The computational efficiency is improved significantly.
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Received: 25 June 2010
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Corresponding Authors:
Chen Ming-sheng
E-mail: chenms@ustc.edu.cn
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2011, Vol. 33 
