燕山大学学报2025，Vol.49Issue(6)：471-478,506,9.DOI:10.3969/j.issn.1007-791X.2025.06.001
星载可展开合成孔径雷达天线平面度被动补偿试验研究
Experimental investigation on flatness-passive-compensation of deployable spaceborne radar antenna
摘要
Abstract
Under the space thermal environment,there exists an discordance of the thermal-induced deformation between the truss and the frame of spaceborne deployable synthetic aperture radar antenna,therefore the flatness can hardly be guaranteed.The experimental investigation on the flatness-passive-compensation mechanism is carried out,in order to verify the function of decoupling the deformation between the truss and the frame.Qualitative with quantitative experiments are implemented via the controlling the existence of the flatness-passive-compensation mechanism and the deformation of the truss.From the data analysis it can be concluded that the flatness-passive-compensation mechanism can control the influence effectively on the deformation of the antenna from the thermal-induced deformation of the truss.Furthermore,the discontinuity observed in the experiment has been analyzed and located,and the improvement path of the flatness-passive-compensation mechanism has also been clarified.It can be summarized that the thermal-induced deformation of the deployable antenna due to the performance promotion of the spaceborne synthetic aperture radar can be satisfied by flatness-passive-compensation mechanism,which may provide a reference for next-generation synthetic aperture radar satellites.关键词
合成孔径雷达/可展开天线/被动补偿/热变形Key words
synthetic aperture radar/deployable antenna/passive compensation/thermal-induced deformation分类
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李明,许巍瀚,王治易,徐世超,刘祎石,周鑫..星载可展开合成孔径雷达天线平面度被动补偿试验研究[J].燕山大学学报,2025,49(6):471-478,506,9.基金项目
上海市自然科学基金资助项目(23ZR1462600) （23ZR1462600）
