Asymptotic waveform evaluation in scattering of anisotropic impedance wedge

作者：Li, Ji^*; Zhu, Guo Qiang; Hu, Wei Dong; Yu, Wen Xian

来源：Chinese Journal of Radio Science, 2009, 24(4): 761-765.

• Angle of Incidence
• Anisotropic impedance
• Approximate methods
• Asymptotic waveform evaluation
• Diffraction fields
• Numerical results
• Scattering problems
• Uniform geometrical theory of diffraction

When a plane wave obliquely incident on an anisotropic impedance wedge, considering the coupling of the electric field and the magnetic field, we can't get the result of the diffraction field by using the classical uniform geometrical theory of diffraction (UTD). Some approximate method can only resolve the case when the angle of incidence is near normal one. In this paper, we introduce the asymptotic waveform evaluation (AWE) technique, and use the result by approximate method, extrapolate the angle of incidence. The numerical result proved the method can effectively resolve the general scattering problem of anisotropic impedance wedge.

• 出版日期2009
• 单位上海交通大学