Jerusalem十字架型FSS的仿真设计  

The Design and Simulation of Jerusalem FSS

作　　者：安兆卫[1] 王明皓[2] 赵平[3] 洪铁山[2] 李清波[2] 

机构地区：[1]沈阳航空工业学院电子信息工程学院,辽宁沈阳110136 [2]沈阳飞机设计研究所,辽宁沈阳110035 [3]中国联合网络通信有限公司黑龙江省分公司,黑龙江哈尔滨150001

出　　处：《飞机设计》2010年第1期55-59,共5页Aircraft Design

摘　　要：在飞行器隐身技术的研究中发现,雷达天线系统通常在飞行器鼻锥方向产生很强的RCS贡献[1]。因此,如何减少雷达天线带外的RCS而又保证自身雷达正常工作已成为目标隐身技术中的一个关键课题。文中介绍了由Jerusalem十字架型振子单元构成的带阻式频率选择表面来有效的控制电磁波的传输和反射,利用单个单元和周期性边界条件的性质,采用理想匹配层(PML)吸收边界、周期边界相结合的方法对无限大频率选择表面进行仿真。借助于有限元软件Ansoft HFSS对Jerusalem十字架型FSS进行了软件建模,并对Jerusalem十字架外形及平面波入射角对频率特性的影响分别进行了仿真,给出了表面波频率选择特性随Jerusalem十字架几何参数和平面波入射角的变化而变化的趋势。The radar antenna system has a very strong contribution to the RCS for the direction of aircraft nose cone in aircraft concealed technology research. Therefore, how to reduce the radar antenna of the RCS and to ensure the normal work of their own goal of concealed technology have become a key issues. In this paper, the Jerusalem FSS unit used to effectively control the transmission and reflection of electromagnetic waves which consist of band-stop frequency selective surface using a single unit and the nature of periodic boundary conditions and the perfectly matched layers （PML） absorbing boundary, periodic boundary methods of combining infinite frequency selective simulation of the surface. Through the use of finite element software Ansoft HFSSTM simulate the Jerusalem FSS geometry shape and angle of incidence of plane-wave. The simulation results were given the change trend characteristics of frequency selective surface with geometric parameters of the Jerusalem FSS and the angle of plane wave incident changes.

关 键 词：频率选择表面 介质周期结构 理想匹配层 Jerusalem十字架 

分 类 号：V218[航空宇航科学与技术—航空宇航推进理论与工程]