吸波结构前缘翼面散射的快速分析  

Fast Scattering Analysis of Lossy Material in Front Edge of Metal Wing

作　　者：刘红星[1] 赵伯琳[1] 高正平[1] 

机构地区：[1]电子科技大学微电子与固体电子学院,成都610054

出　　处：《微波学报》2004年第2期35-39,共5页Journal of Microwaves

摘　　要：翼面是飞行器对正向入射波的后向RCS的重要来源 ,为了减缩翼面的后向RCS ,一般可在翼面的前缘改用吸波结构以减小翼面对后向的散射。在建立吸波结构前缘翼面的物理模型后 ,采用快速多极子方法和矩量法的混合方法 ,计算不同的金属介质分界面条件下的后向雷达散射截面 ,经过比较和分析 。Wings are one of the important scattering sources on the aircraft. In order to reduce the RCS, the lossy material in the front edge of metal wings are applied. For reducing the complexity, the wings can be viewed as a two dimensional large electric objects consisting of both conductors and inhomogeneous dielectrics. Fast multipole algorithm(FMM) and methods of moment(MM) are used to work out the scattering fields. The RCSs of different wings are compared and examined. The results are obtained and can give strong predictive power for stealth technology of aircraft.

关 键 词：电磁散射 雷达散射截面 翼面 飞行器 隐身技术 吸波结构 

分 类 号：TN953[电子电信—信号与信息处理]