激光等离子体天线的电磁散射分析  

EM Scattering Analysis of Laser Plasma Antenna

作　　者：夏新仁[1] 谢辉[1] 彭川[1] 陈闯[1] 尹成友[2] 

机构地区：[1]中国人民解放军空军驻合肥地区军事代表室,安徽合肥230000 [2]合肥电子工程学院,安徽合肥230037

出　　处：《上海航天》2011年第3期26-31,共6页Aerospace Shanghai

基　　金：国家自然科学基金项目(60671057)

摘　　要：根据激光等离子体天线工作原理给出了电磁分析模型,以电场作为未知函数建立了频域体积分-微分方程,用脉冲基函数和点匹配函数的矩量法(MOM)将之转为线性代数方程组。求解中应用快速傅里叶变换(FFT)和共轭梯度法(CGM),以降低所需计算机内存和减少CPU计算时间。算例表明:该法计算的结果与Mie级数解析解和其他文献结果吻合较好。The near electromagnetic model of laser plasma antenna was put forward based on the operating principle of the antenna in this paper.A general volume integro-differential formulation of electric field for the scattering problem was deduced.The system of linear algebraic equations was achieved by using the numerical method of moment（MOM） with pulse basis functions and a Dirac testing function.To reduce storage and CPU time,the conjugate gradient method（CGM） and fast Fourier transform（FFT） technique were used.The numerical computation showed that the results of this method were agreed with those of Mie series or given in other papers.

关 键 词：激光等离子体天线 电磁散射 矩量法 共轭梯度法 快速傅里叶变换 

分 类 号：TN011[电子电信—物理电子学]