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New three-dimensional network concept for deployable space antennas
Acta Astronautica ( IF 3.1 ) Pub Date : 2022-08-04 , DOI: 10.1016/j.actaastro.2022.07.020
William Bettini , Xavier Maetz , Jérôme Quirant , Julien Averseng , Bernard Maurin

A new antenna design lighter, and with fewer mechanical connections between the elements has emerged. This concept consists of deploying a polygonal ring using the flexion energy present in the flexible joints connecting two consecutive bars. Shaped reflective surfaces can selectively avoid radiating to certain areas of the globe. However, these consist of rigid frames and are not deployable. Studies have been conducted to obtain a uniform tension in a mesh network. In order to tighten a shaped membrane into this new structure, a new type of network that can be inserted into the polygonal ring was studied. This new type of three-dimensional network that can fit into this ring or existing reflectors has been developed with the aim of obtaining control points. Compared to the common cable domes used in civil engineering, the tension of this type of three-dimensional network is better distributed across all elements. Applications include shaped or meshed space antennas, and solar panel supports.



中文翻译:

可展开空间天线的新三维网络概念

一种新的天线设计更轻,元件之间的机械连接更少。这个概念包括使用连接两个连续杆的柔性关节中存在的弯曲能量来部署多边形环。成形反射表面可以选择性地避免辐射到地球的某些区域。然而,这些由刚性框架组成,不可展开。已经进行了研究以获得网状网络中的均匀张力。为了将异形膜收紧到这种新结构中,研究了一种可以插入多边形环的新型网络。为了获得控制点,已经开发了这种可以适合该环或现有反射器的新型三维网络。与土木工程中常用的索穹顶相比,这种类型的三维网络的张力更好地分布在所有元素上。应用包括成形或网状空间天线,以及太阳能电池板支架。

更新日期:2022-08-04
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