摘要
提出了一种预测网状可展开天线电性能的数值计算方法.针对网状可展开天线采用三角形拼合的这一特点,首先从结构力学出发确定天线枕效应变形,然后采用巴斯卡图插值进行面片网格划分,给出了网格划分准则,其次通过最佳吻合抛物面确定最优馈源的位置和指向,最后考虑丝网的电磁漏射对网状天线进行电性能预测.通过仿真算例验证了该方法的可行性和有效性.
A numerical method for electromagnetic（EM）performance prediction for mesh deployable antennas considering pillow deformation is proposed in this article. Accounting for the characteristics of mesh reflecting surface which is faceted by a se- ries of triangles, the amount of pillow deformation is computed firstly based on the antenna slructural parameters;Secondly, with the Pascal graph interpolation, the meshing of the surface facet is accomplished with a given criterion; The position and orientation of the optimized feed are both obtained using the traditional best-fit paraboloid（BFP）method;Finally, the EM performance is predicted under the influence of wire mesh leakage. Simulation results of a mesh deployable reflector validate the feasibility and effectiveness of the method.
出处
《电子学报》
EI
CAS
CSCD
北大核心
2014年第7期1446-1451,共6页
Acta Electronica Sinica
基金
国家自然科学基金(No.51035006)
青年科学基金(No.51305321)
关键词
网状可展开天线
枕效应
网格划分
电性能
mesh deployable reflector
pillow deformation
meshing
EM performance
