【摘 要】
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This paper provides a survey of re-search activities of Large spacebe deployable antennas (LSDAs) in the past, present and future.Firstly, three main kinds of s
【机 构】
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Research Institute on Mechatronics, Xidian University, Xi’an 710071, China
论文部分内容阅读
This paper provides a survey of re-search activities of Large spacebe deployable antennas (LSDAs) in the past, present and future.Firstly, three main kinds of spacebe antennas, such as solid reflector, inflatable reflector and mesh reflector, are issued by showing the strengths and weaknesses. Secondly, a detailed research situation of LSDAs with mesh is discussed, for majority of the in-orbit large diameter and high frequency antennas are made in this type of structures. Thirdly, new conception of antenna is proposed as it does have both advantages of large aperture (high gain) and high precision (high frequency). Fourthly, the design theory and approach of LSDAs are conced. It includes thermal-electromechanical multidisciplinary optimization, shaped beam design technique, performance testing technology and evaluation method, passive inter-modulation of mesh, and application of new materials. Finally, the ultra large spacebe deployable antennas of the next generation are presented, such as the deployable frame and inflatable reflector antennas, space-assembled ultra large antennas, smart array antennas and so on.
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