Phase shifters change the transmission phase angle of an input signal. They provides a phase shift to the signal by adding propagation delay and are the main building blocks of any beam steering capable system. Phase shifters are used e.g. in satellite communications, beamforming modules, phase cancellation, or communications antennas. SMARTWAVE project wants to take advantage of the re-configurability potential of high-frequency phase shifters and innovate them by proposing new technological approach, which meets the requirements of frequency scalability, increased power efficiency, reduced size and re-configurability.