基于纤维缠绕技术的自适应天线反射器

ADAPTIVE ANTENNA REFLECTOR BASED ON FILAMENT WINDING TECHNOLOGY

现代信息社会越来越需要更大的通讯能力 ,这种需要可通过发展更高的远程通讯频率来满足 ,为实现此目的 ,使用发射天线的卫星通讯系统。德国宇航研究院结构力学研究所正在研制一种新的、用于卫星天线发射器的自适应结构体系。本文介绍了一种直径为 90 0毫米的抛物面型叠层发射器的制造工艺。该卫星天线发射器叠层材料为中等弹性模量的碳纤维——环氧树脂面板和带有集成激励控制驱动器的铝蜂窝夹芯。并将给出驱动器封装的制造 ,纤维缠绕过程和驱动器的装配方法。本文介绍了这一新的设计思想和具有高效控制 ,高热稳定性及经济的、重量轻的自适应智能天线反射器结构。

The modern information society continuously demands for larger communication capacities.These demands can be met by developing higher telecommunication frequencies.With this goal and modern communication technology basing on satellite systems with reflector antennas,a new structural design concept of a satellite antenna reflector as an adaptive structural system is being developed.In this article the manufacturing of such a parabolic central focus sandwich reflector of a diameter of 900mm with intermediate modulus carbon fibre/epoxy face sheets and aluminium honeycomb core with integrated actuators will be introduced.The fabrication of the actuator packages,the filament winding process and the assembly of the actuators will be presented.With this paper the authors intend to introduce this new design concept as a promising technique to realise lightweight,by means of active control thermally highly stable and economic reflector structures for future communicaiton applications.