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SAMMI shines a light on 3D printed RF components

Components for use in the high-frequency range, which are produced by means of 3D printing processes, are to be assessed and improved in future with regard to their material properties by using the SAMMI transmitted-light system.

19 Apr. 2018
SAMMI shines a light on 3D printed RF components (Photo: Fraunhofer FHR)

The Fraunhofer Institute for High-Frequency Physics and Radar Technology FHR combines 3D printing technology with the self-developed high-frequency scanner SAMMI to investigate and continuously improve the quality of HF components. The material properties of an object can be selectively influenced in additive manufacturing, specifically by controlling the density distribution of the printing material. In this way, optimized components are created for use in the high-frequency range.

The researchers use their self-developed transmitted light system SAMMI to analyze the permeability of the workpieces, for example. The solution scans the material and allows the visualization of gradients as well as the early detection of production errors. SAMMI was specially developed for industrial use and operates without contact using millimeter waves. So far, the system has been used mainly by the food industry for the quality inspection of packaged goods.