Data for: An iterative approach to determine the refractive index of 3D printed 60GHz PLA lenses

This study is a part of the research project eMC-Hammer. It describes an iterative approach to determine quasi-optical properties of standard 3D printer filament material to, in an inexpensive and fast way, construct focusing lenses for millimetre wave systems. Results from three lenses with different focal lengths are shown and discussed. The real part of the permittivity at 60GHz for polylactic acid (PLA) is in this paper determined to be er=2.74. Purpose: The purpose with the study is to validate an iterative, low cost, method of determining the refractive index of 3D printed lenses, where otherwise expensive equipment would be needed, such as S-parameter measurements using a vector network analyzer. The dataset contains measurements, simulation results and matlab code used for the conference article "An iterative approach to determine the refractive index of 3D printed 60GHz PLA lenses" (doi:10.1049/cp.2018.1480) See the conference article (methods) and lapc2018mainfigure.m (data description - meta data) for details.本研究隶属于科研项目eMC-Hammer，提出了一种迭代方法，用于测定标准3D打印丝材的准光学特性，从而以低成本、高效率的方式为毫米波系统构建聚焦透镜。本文展示并讨论了三款不同焦距透镜的测试结果。经测定，聚乳酸（PLA，polylactic acid）在60GHz频段下的介电常数实部为εr=2.74。 研究目的： 本研究旨在验证一种迭代式低成本方法，用于测定3D打印透镜的折射率——此类折射率测定原本需借助矢量网络分析仪进行S参数测量等昂贵设备方可完成。 本数据集包含用于会议论文《An iterative approach to determine the refractive index of 3D printed 60GHz PLA lenses》（doi:10.1049/cp.2018.1480）的实测数据、仿真结果及Matlab代码。详细信息可参阅该会议论文的方法部分，以及lapc2018mainfigure.m（数据描述——元数据）。