Vorteil
Higher frequency bands will be exploited in new generation wireless systems, which results in moving transmissions to the portion of the electromagnetic spectrum termed “mm-wave”. In any wireless systems, passive components (such as filters) are fundamental to guarantee high performances, interoperability and reliability. Filters can be implemented in various technologies such as lumped elements, waveguides and printed circuit boards (PCB) depending on the desired performances, size and weight. At lower microwave frequencies planar technology offers a good compromise between low electrical losses, low size and low weight, however, at mm-wave it is not trivial to achieve good performing filters with classically manufactured PCBs.
The project VORTEIL is funded by FFG-Austria under the framework BRIDGE which promoted the collaboration of TU Graz and the industrial partner AT&S (Austria). The focus of this three-year project, which began in September 2015, is to investigate improved manufacturing techniques which aim to reduce electrical losses of filters on PCB at mm-wave. Such techniques will be tested on advanced components such as filters with tunable response which are essential to combine different functionalities in one single device and therefore reduce the size of next generation front ends.