The Establishment and Analysis of the Structural-Electromagnetic Coupling Model of the Electrostatically Controlled Deployable Membrane Antenna

作     者：Shunji ZHANG Yongzhen GU Wang ZHONG Qinggang ZHANG Shunji ZHANG;Yongzhen GU;Wang ZHONG;Qinggang ZHANG

作者机构：Qingdao University of Science and Technology Key Laboratory of Electronic Equipment Structure Design of Ministry of EducationXidian University 

出 版 物：《Chinese Journal of Electronics》 (电子学报(英文))

年 卷 期：2024年第33卷第2期

页      面：479-487页

核心收录：

学科分类：080904[工学-电磁场与微波技术] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 

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) 

主　　题：Couplings Electrodes Analytical models Deformation Electromagnetic fields Electromagnetics Optimization 

摘      要：A new structural-electromagnetic coupling(SEC) analysis based on quadratic elements is proposed to solve the mismatch problem between structural elements and electromagnetic grids of the electrostatically controlled deployable membrane antenna(ECDMA). Firstly, the ECDMA reflector surface is meshed and redefined by a series of quadratic elements. Without grid transformation, the calculating formulas for the far-field pattern of ECDMA are derived by the physical-optics method. Then the structural deformation of ECDMA is analyzed and the far-field pattern calculating formulas including deformation errors are developed. Simulation and experiment results show that the quadratic elements are effective and efficient in SEC analysis of the ECDMA, moreover, the electromagnetic grid size demand and the grid discretization error are reduced greatly.