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

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外文摘要：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.

外文关键词：

Membrane antennaStructural-electromagnetic coupling modelQuadratic elements

作者：

Shunji ZHANG、Yongzhen GU、Wang ZHONG、Qinggang ZHANG

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作者单位：

Qingdao University of Science and Technology,Qingdao 266061,China

Key Laboratory of Electronic Equipment Structure Design of Ministry of Education,Xidian University,Xi'an 710071,China

基金：

National Natural Sciences Foundation of ChinaGuangdong Fundamentals and Application Fundamentals Research FoundationResearch Initiation Foundation of Qingdao University of Science and Technology

项目编号：

520052772020A151511104312030430010878

出版年：

2024

DOI：

10.23919/cje.2022.00.328

电子学报(英文)

CSTPCDEI

ISSN：1022-4653

年,卷(期)：2024.33(2)

参考文献量19