High-efficiency scattering analysis of Nth-order dispersive media over a broad frequency band

作者：Chen Ming Sheng^*; Wu Qiong; Sha Wei; Huang Zhi Xiang; Wu Xian Liang

来源：Systems Engineering and Electronics, 2010, 32(11): 2313-2316.

DOI：10.3969/j.issn.1001-506X.2010.11.12

• Approximation methods
• Broad bands
• Dispersive objects
• Maehly approximation
• Method of moments (MOM)
• PMCHW equation
• Scattering analysis
• Scattering problems

The Maehly approximation theory is proposed to obtain the frequency response of scattering problems over a broad frequency band. The method of moments (MOM) is applied at given frequency points to form a Chebyshev approximation for the surface current. And the Chebyshev series is matched to be a rational function via Maehly approximation to improve the accuracy. The PMCHW equation is applied to the scattering analysis of arbitrarily shaped dielectric objects and Nth-order dispersive objects over a broad frequency band. It is shown by the simulation that the Maehly approximation method is found to be efficient for scattering analysis over a broad frequency band with low memory consumption.

• 出版日期2010
• 单位合肥师范学院; 安徽大学