Telecom

Active RIS vs. passive RIS: Which will prevail in 6G?

Reconfigurable intelligent surface (RIS) has become a promising technology in future 6G communications. Thanks to its high array gain, low cost, and low power consumption, RISs can improve spectral efficiency and reduce power ...

Energy & Green Tech

Environmentally friendly manufacture of battery electrodes

Conventional processes for manufacturing battery electrodes involve mostly toxic solvents and require a lot of space and energy. This is not the case with DRYtraec—a new dry-coating process developed by the Fraunhofer Institute ...