Abstract The main focus of this paper is the effect of surface distortions on the electromagnetic performance of a large and lightweight active membrane phased array antenna (AMPAA) in P-band. The ideal structural-electromagnetic (SE) model of AMPAA is established for analyzing the relationship between the structural displacement and the electromagnetic performance. Based on the SE model, the amplitude and phase errors of AMPAA can be introduced and the electromagnetic performances can be defined. Furthermore, wrinkles distortion caused by tension cables and beam scan at different degrees are simulated to determine the performance of AMPAA. Simulation results show that the coupled SE model of AMPAA can be employed to analyze accurately the electromagnetic performance caused by surface distortions, and AMPAA can satisfy the requirements of given key parameters in this paper.

中文翻译：

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有源膜相控阵天线结构-电磁耦合建模与分析

摘要 本文的主要焦点是表面畸变对大型轻量级有源薄膜相控阵天线（AMPAA）在P波段电磁性能的影响。建立了AMPAA的理想结构-电磁(SE)模型，用于分析结构位移与电磁性能之间的关系。基于SE模型，可以引入AMPAA的幅度和相位误差并定义电磁性能。此外，还模拟了不同程度的张力索和梁扫描引起的皱纹变形，以确定 AMPAA 的性能。仿真结果表明，AMPAA的耦合SE模型可以准确分析表面畸变引起的电磁性能，