HANNOVER MESSE 2020, 20 - 24 April

Layer by layer

Logo Karlsruher Institut für Technologie


Karlsruher Institut für Technologie

Exhibitor details
Exhibitor details
Logo Layer by layer

Product description

Future communication and sensor systems will require a constantly growing functionality, combined with an increased integrability and flexibility of the components used. Thick layers of barium-strontium titanate (BST), for instance, are suited for the low-cost production of electronically controllable microwave components that can adapt their functionality and characteristics to the respective application. By applying an electric control field to the corresponding capacitors, dielectric properties of this material system can be modified in a quasi power-free manner. Thus, electronically controllable microwave components, such as multi-band antennas adjustable in center frequency and bandwidth, adaptive filters and adaptation networks, electronically phase-controlled group antennas, and chip-free RFID and temperature sensors, are feasible. Scientists from the Institute for Applied Materials (IAM-WPT), in cooperation with TU Darmstadt, have further developed materials for use as controllable microwave dielectrics. They can be adapted to specific requirements of individual applications. The printed ceramic thick layers can be influenced specifically by the use of doped materials and optimized structures. New component designs can be produced flexibly and rapidly by inkjet printing. The BST starting material is produced by a modified sol-gel process. By doping, i.e. introduction of foreign atoms in the material, its properties are optimized for high-frequency technology. Acceptor-donator co-doping has proved to be advantageous, as total performance is increased. By screen or inkjet printing and subsequent sintering, BST thick layers of 1 to 10 µm are produced. In the last process step, metallization, the microwave components are manufactured from the thick layers.

You can get an overview of this technology at KIT stand. Detailed information can be exchanged individually in contact with the responsible scientific employees of KIT after the industry fair.

Product website

More products from Karlsruher Institut für Technologie

Show more

Stored items


Server communication error: Item could not be saved.