Adjustability analysis and experiment for mesh antenna

IF 5 1区工程技术 Q1 ENGINEERING, AEROSPACE

Aerospace Science and Technology Pub Date : 2025-04-23 DOI:10.1016/j.ast.2025.110250

Yongxiang Huang , Tuanjie Li , Xiang Xu , Zhiyang Shi , Xifan Xu

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Abstract

Mesh antenna plays an important role in the field of space communication. Surface accuracy is the key factor to determine the electrical performance of mesh antenna, which needs to be ensured by surface adjustment. Because the mesh antenna has variable stiffness and great flexibility, the surface may be 'non-adjustable' within the limited range of the adjustment device, in the sense that it is not possible to further improve the surface accuracy by surface adjustment. In order to directly describe the adjustment state of the surface through the structure parameters of the mesh antenna, a method of calculating the surface adjustability is proposed to quantitatively describe the degree of further adjustment of the surface. Three parameters which affect the adjustability are put forward: the adjustment force margin parameter, the adjustment amount margin parameter and the accuracy adjustable parameter. The adjustment balance equations for mesh antenna surface are established, and the relationship between surface structure parameters and influence parameters is deduced. The method of calculating the adjustability of surface by influencing parameters is given. The experimental results show that the surface adjustability can not only accurately reflect the adjustment state of the surface, but also guide the selection of the adjustment configuration, which can effectively improve the surface accuracy compared with the traditional method.

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网状天线的可调性分析与实验

网状天线在空间通信领域发挥着重要的作用。表面精度是决定网状天线电性能的关键因素，需要通过表面调整来保证表面精度。由于网状天线具有可变刚度和很大的灵活性，因此在调节装置的有限范围内，表面可能是“不可调节的”，即不可能通过表面调节进一步提高表面精度。为了通过网格天线的结构参数直接描述表面的调整状态，提出了一种计算表面可调节性的方法，定量描述表面进一步调整的程度。提出了影响可调性的三个参数：调节力裕度参数、调节量裕度参数和精度可调参数。建立了网格天线表面调整平衡方程，推导了表面结构参数与影响参数之间的关系。给出了通过影响参数计算曲面可调性的方法。实验结果表明，表面可调性不仅可以准确反映表面的调节状态，还可以指导调节配置的选择，与传统方法相比，可以有效提高表面精度。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Aerospace Science and Technology 工程技术-工程：宇航

CiteScore

10.30

自引率

28.60%

发文量

654

审稿时长

54 days

期刊介绍： Aerospace Science and Technology publishes articles of outstanding scientific quality. Each article is reviewed by two referees. The journal welcomes papers from a wide range of countries. This journal publishes original papers, review articles and short communications related to all fields of aerospace research, fundamental and applied, potential applications of which are clearly related to: • The design and the manufacture of aircraft, helicopters, missiles, launchers and satellites • The control of their environment • The study of various systems they are involved in, as supports or as targets. Authors are invited to submit papers on new advances in the following topics to aerospace applications: • Fluid dynamics • Energetics and propulsion • Materials and structures • Flight mechanics • Navigation, guidance and control • Acoustics • Optics • Electromagnetism and radar • Signal and image processing • Information processing • Data fusion • Decision aid • Human behaviour • Robotics and intelligent systems • Complex system engineering. Etc.