摘要
在目标宽频电磁响应分析中引入Maehly逼近理论,应用矩量法(method of moments,MOM)求解给定频带内若干节点处目标的表面电、磁流,以形成关于电、磁流的Chebyshev多项式逼近,最后转化为Maehly逼近以提高计算精度。结合PMCHW方程,对各种形状三维介质目标、N阶色散介质目标的宽带电磁散射特性进行了分析。数值仿真表明:在不占用更多内存的情况下,Maehly逼近方法能够有效提高宽频分析的计算效率。
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.
出处
《系统工程与电子技术》
EI
CSCD
北大核心
2010年第11期2313-2316,共4页
Systems Engineering and Electronics
基金
国家自然科学基金重点项目(60931002)
国家自然科学基金(61001033)
安徽省自然科学基金(090412047)
安徽省优秀青年科技基金(10040606Y08)
安徽省科技计划(09020204029)资助课题
