Abstract
In the paper, selected aspects of LTCC technology for fabrication of passive elements for microwave application are presented. The research effect is based on the example of experimental 3-D antenna performed for a sub-THz scanner. For the described methods of antennas performance the achieved printing quality have been determined basing on observations using a digital microscope Hirox KH7700 and measurements of geometrical dimensions. The impact of geometrical structure dimensions and printed pattern resolution on its working abilities is also discussed. The main emphasis of the research work is on high resolution metallization obtainment by modification of screen printing parameters and conditions (the angle and pressure of squeegee, the mesh size), laser ablation and co-firing profile.
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