{"title":"Fast-Shaping of Reflector Antenna Illuminated by Quasi-Actual Feed","authors":"Xinhua Yu, Jun Wang, Xingqiang Huang, Guiyu Sun","doi":"10.1109/ISAPE.2018.8634118","DOIUrl":null,"url":null,"abstract":"A time-saving method to reshape the surface of reflector antenna fed by a quasi-actual feed(QAF) based on the Non-Uniform Rational B-Spline Surface (NURBS) technique, ray tracing technology (RT), physical optical method (PO), and Gauss-Legendre integral (GLI), is proposed. The optimized surface of the reflector can be smooth and time-saving by NURBS algorithm to support its better agreement with its future manufactured counterpart and by RT-PO-GLI method, where the antenna is fed by a QAF derived from the far-field data of an antenna model simulated from the commercial software MWS Studio CST, not a pure imaginary feed like in the available literature. An objective function is constructed with the weights of main-lobe level, side-lobe level, and beam width of the considered antenna to regulate the method to optimize electric far-field radiation patterns to specific purpose. The results show that the method has a faster calculating speed and can surely be expected to design a reshaped reflector antenna effectively and fast.","PeriodicalId":297368,"journal":{"name":"2018 12th International Symposium on Antennas, Propagation and EM Theory (ISAPE)","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2018 12th International Symposium on Antennas, Propagation and EM Theory (ISAPE)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ISAPE.2018.8634118","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 1
Abstract
A time-saving method to reshape the surface of reflector antenna fed by a quasi-actual feed(QAF) based on the Non-Uniform Rational B-Spline Surface (NURBS) technique, ray tracing technology (RT), physical optical method (PO), and Gauss-Legendre integral (GLI), is proposed. The optimized surface of the reflector can be smooth and time-saving by NURBS algorithm to support its better agreement with its future manufactured counterpart and by RT-PO-GLI method, where the antenna is fed by a QAF derived from the far-field data of an antenna model simulated from the commercial software MWS Studio CST, not a pure imaginary feed like in the available literature. An objective function is constructed with the weights of main-lobe level, side-lobe level, and beam width of the considered antenna to regulate the method to optimize electric far-field radiation patterns to specific purpose. The results show that the method has a faster calculating speed and can surely be expected to design a reshaped reflector antenna effectively and fast.
提出了一种基于非均匀有理b样条曲面(NURBS)技术、射线追踪技术(RT)、物理光学法(PO)和高斯-勒让德积分(GLI)的准实际馈入(QAF)反射面天线表面重塑的省时方法。通过NURBS算法和RT-PO-GLI方法,优化后的反射器表面可以平滑和节省时间,以支持其与未来制造的对应物更好地一致。RT-PO-GLI方法中,天线由由商业软件MWS Studio CST模拟的天线模型的远场数据导出的QAF馈电,而不是像现有文献中那样纯粹的想象馈电。通过考虑天线的主瓣电平、旁瓣电平和波束宽度的权重,构造目标函数来调节远场电辐射方向图的优化方法。结果表明,该方法具有较快的计算速度,可以有效、快速地设计出整形反射面天线。