航天器工程2019，Vol.28Issue(2)：56-62,7.DOI:10.3969/j.issn.1673G8748.2019.02.009
误差链对星载网状可展开天线电性能影响分析
Effect Analysis of Error Chain on Electrical Performance of Satellite Mesh Deployable Antenna
摘要
Abstract
In response to the problem of system error chain caused by deployable beams,joints and immeasurable items of electrical performance during ground test,an effect analysis of error chain on electrical performance of mesh deployable antenna is developed.Error chain transform model through position and orientation transition matrix is set up.The error model is used to establish electromagnetic field analysis model,and the mechanicalGelectro coupling model for anG tenna electrical performance from the influence of errors is put forward.The relative relationships between fixed errors or variable errors with antenna average power pattern,and the quantitative relationships between orientation errors with maximum gain of antenna are calculated by the proG posed numerical method.The result shows that the orientation errors has the obvious magnificaG tion effect on error chain and has a large impact on electrical performance comparing with the poG sition errors.The orientation errors are monotonically decreasing functioned with the maximum gain in different ways,such as linear or abruptly changed,so the orientation errors of each instalG lation position should be emphasized and adj usted in designing and installation work.关键词
星载网状可展开天线/误差链/机电耦合/电性能/方向图Key words
satellite mesh deployable antenna/error chain/mechanicalGelectro coupling/electrical performance/radiation pattern分类
航空航天引用本文复制引用
薛碧洁,唐雅琼,钟红仙,张磊..误差链对星载网状可展开天线电性能影响分析[J].航天器工程,2019,28(2):56-62,7.基金项目
国家重大航天工程 （）
