- 标题
- 摘要
- 关键词
- 实验方案
- 产品
-
[IEEE 2018 15th European Radar Conference (EuRAD) - Madrid, Spain (2018.9.26-2018.9.28)] 2018 15th European Radar Conference (EuRAD) - Additive Manufactured Antenna in Mixed Material Technology for 24 GHz FMCW Miniaturized Radar
摘要： A 24 GHz antenna design for miniaturized FMCW radar is presented. The antenna was manufactured with additive manufacturing technology at TNO. The characterization of the polymer material used in the fabrication was carried out and the measurement results of the antenna are presented in this work. A good agreement between simulations and measurements was achieved.
关键词： 3D printing technology,FMCW,radar on chip
更新于2025-09-23 15:21:21
-
Active control on switchable waveguide of elastic wave metamaterials with the 3D printing technology
摘要： Propagation of elastic waves along a direction has special interests in practical applications. These concerns generate the design of an elastic wave metamaterial with electrically switchable properties, which is studied in this work. The structure contains a T-shaped waveguide in a plate with the 3D printing technology; and the active control system is used to tune the propagation direction of the flexural wave. The piezoelectric patches which are connected by the negative capacitance circuits are applied to behave as the active control system. The finite element simulation is performed to give the theoretical prediction of the switchable waveguide and the tunable equivalent parameters are achieved by the electrical circuits. The active control experiments are finally carried out to support the numerical design.
关键词： 3D printing technology,switchable waveguide,elastic wave metamaterials,negative capacitance circuits,active control,piezoelectric patches
更新于2025-09-12 10:27:22
-
Print flexible solar cells
摘要： Conventional silicon solar cells account for more than 90% of global production, yet making them uses energy equivalent to about 10% of their lifetime output. The future of solar energy depends on a union of new and old technologies. If photovoltaic (PV) devices that turn light into electricity could be mass produced with printing presses, as if they were newspapers or banknotes, they could be affordable and ubiquitous. Conventional, silicon-based, solar panels are rigid and bulky. Small, thin and flexible PV devices on films are already being made that are lightweight and translucent. These use little material and can generate electricity in low light, even indoors. Integrating them into phones and watches, as well as walls and windows, would transform the world’s energy generation, reduce pollution and mitigate climate change.
关键词： photovoltaic devices,solar cells,printing technology,flexible solar panels,renewable energy
更新于2025-09-11 14:15:04