From their laboratories at the Polytechnic City of Innovation, the Optical and Quantum Communications Group at ITEAM has developed a pioneering device to slow down the speed of light, a phase shifter for microwave signals capable of operating across a vast frequency range. So far, they have demonstrated the ability to shift the phase by up to 360°, the maximum possible, within a bandwidth of 0 to 50 GHz, although this is potentially extendable to 100 GHz.