The Choice of Mesh Size and Integration Points Number for the Electrostatically Controlled Membrane Antenna Structural-Electromagnetic Coupling Model  

作　　者：Yongzhen GU Qinggang ZHANG Xiao YU Guixu LI 

机构地区：[1]Qingdao University of Science and Technology,Qingdao 266061,China

出　　处：《Chinese Journal of Electronics》2024年第2期443-448,共6页电子学报（英文版）

基　　金：supported by the National Natural Sciences Foundation of China(Grant No.52005277);the Guangdong Fundamentals and Application Fundamentals Research Foundation(Grant No.2020A1515111043);the Research Initiation Foundation of Qingdao University of Science and Technology(Grant No.12030430010878).

摘　　要：It is of great significance for the improvement of the computational efficiency of the electrostatically controlled membrane antenna(ECMA)structural-electromagnetic coupling model through the choice of appropriate mesh size and integration points number.In this paper,the physical optics formulation is used to analyze the radiation pattern of the ECMA surface,and the finite element method is applied to the electrostatic-structural coupling analysis.An expression for the relation between the mesh size,the focal length of the parabolic antenna,and the wavelength is developed based on the discretization error analysis of the triangular mesh approximating the parabolic surface.Moreover,the integration points number in each triangular mesh is determined by the numerical evaluation of the physical optics integral.Numerical results show that the proposed method improves the computing efficiency by about 87%compared with the referenced method.

关 键 词：Electrostatically controlled membrane antenna Structural-electromagnetic coupling Mesh size Integration points number Physical optics. 

分 类 号：TN820[电子电信—信息与通信工程] O441[理学—电磁学]