In this study,the design,analysis,manufacturing,and testing of a 3D-printed conformal microstrip array antenna for high-temperature environments is presented.3D printing technology is used to fabricate a curved cerami...In this study,the design,analysis,manufacturing,and testing of a 3D-printed conformal microstrip array antenna for high-temperature environments is presented.3D printing technology is used to fabricate a curved ceramic substrate,and laser sintering and microdroplet spraying processes are used to add the conductive metal on the curved substrate.The problems of gain loss,bandwidth reduction,and frequency shift caused by high temperatures are addressed by using a proper antenna design,with parasitic patches,slots,and metal resonant cavities.The antenna prototype is characterized by the curved substrates and the conductive metals for the power dividers,the patch,and the ground plane;its performance is examined up to a temperature of 600℃in a muffle furnace and compared with the results from the numerical analysis.The results show that the antenna can effectively function at 600℃and even higher temperatures.展开更多
针对4.5 m S/X频段测控数传一体化地面站天线轻量化结构、全空域过顶、高精度标校的任务需求,研制了一种轻量化高精度XY轴天线系统,解决了S/X频段低轨卫星信号的收发共用和天线高仰角时难捕获跟踪的技术难题。文中提出并采用了一种轻量...针对4.5 m S/X频段测控数传一体化地面站天线轻量化结构、全空域过顶、高精度标校的任务需求,研制了一种轻量化高精度XY轴天线系统,解决了S/X频段低轨卫星信号的收发共用和天线高仰角时难捕获跟踪的技术难题。文中提出并采用了一种轻量化高精度新型天线结构型式及参数化轴系标校方法与基于交流驱动的高可靠性智能跟踪控制技术,克服了传统天线重量/刚度较差、外场标校复杂、过顶时跟踪误差大等缺陷,实现了卫星信号的高质量稳定过顶跟踪。通过现场测试及低轨卫星动态跟踪试验,设计的轻量化XY轴天线的增益、系统G/T值、指向精度、跟踪精度等各项指标均满足工程应用要求,其中X频段跟踪精度优于0.052°(均方根值),对遥感地面站天线系统的设计具有理论指导意义。展开更多
基金National Natural Science Foundation of China(No.U2241205)the Natural Science Basic Research Program of Shaanxi(Nos.2022JC-33,2023-GHZD-35,and 2024JC-ZDXM-25)+1 种基金the Fundamental Research Funds for the Central Universitiesthe National 111 Project to provide fund for conducting experiments。
摘要In this study,the design,analysis,manufacturing,and testing of a 3D-printed conformal microstrip array antenna for high-temperature environments is presented.3D printing technology is used to fabricate a curved ceramic substrate,and laser sintering and microdroplet spraying processes are used to add the conductive metal on the curved substrate.The problems of gain loss,bandwidth reduction,and frequency shift caused by high temperatures are addressed by using a proper antenna design,with parasitic patches,slots,and metal resonant cavities.The antenna prototype is characterized by the curved substrates and the conductive metals for the power dividers,the patch,and the ground plane;its performance is examined up to a temperature of 600℃in a muffle furnace and compared with the results from the numerical analysis.The results show that the antenna can effectively function at 600℃and even higher temperatures.
摘要针对4.5 m S/X频段测控数传一体化地面站天线轻量化结构、全空域过顶、高精度标校的任务需求,研制了一种轻量化高精度XY轴天线系统,解决了S/X频段低轨卫星信号的收发共用和天线高仰角时难捕获跟踪的技术难题。文中提出并采用了一种轻量化高精度新型天线结构型式及参数化轴系标校方法与基于交流驱动的高可靠性智能跟踪控制技术,克服了传统天线重量/刚度较差、外场标校复杂、过顶时跟踪误差大等缺陷,实现了卫星信号的高质量稳定过顶跟踪。通过现场测试及低轨卫星动态跟踪试验,设计的轻量化XY轴天线的增益、系统G/T值、指向精度、跟踪精度等各项指标均满足工程应用要求,其中X频段跟踪精度优于0.052°(均方根值),对遥感地面站天线系统的设计具有理论指导意义。